KR101070774B1 - Nanogel-type electrolyte for dye-sensitized solarcell, preparation method thereof and dye-sensitized solarcell using the same - Google Patents
Nanogel-type electrolyte for dye-sensitized solarcell, preparation method thereof and dye-sensitized solarcell using the same Download PDFInfo
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title description 3
- 239000000843 powder Substances 0.000 claims abstract description 53
- 239000011244 liquid electrolyte Substances 0.000 claims abstract description 43
- IMDPTYFNMLYSLH-UHFFFAOYSA-N 3-silylpropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC[SiH3] IMDPTYFNMLYSLH-UHFFFAOYSA-N 0.000 claims abstract description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 14
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 15
- 239000003960 organic solvent Substances 0.000 claims description 14
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 claims description 9
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 9
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- OOWFYDWAMOKVSF-UHFFFAOYSA-N 3-methoxypropanenitrile Chemical compound COCCC#N OOWFYDWAMOKVSF-UHFFFAOYSA-N 0.000 claims description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 239000011245 gel electrolyte Substances 0.000 claims description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 claims description 6
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims description 3
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical class C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 3
- 239000003929 acidic solution Substances 0.000 claims description 3
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 3
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims description 3
- 150000004693 imidazolium salts Chemical class 0.000 claims description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims description 3
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 3
- 235000009518 sodium iodide Nutrition 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 230000008020 evaporation Effects 0.000 abstract description 5
- 238000007639 printing Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- XREPTGNZZKNFQZ-UHFFFAOYSA-M 1-butyl-3-methylimidazolium iodide Chemical compound [I-].CCCCN1C=C[N+](C)=C1 XREPTGNZZKNFQZ-UHFFFAOYSA-M 0.000 description 3
- UUIMDJFBHNDZOW-UHFFFAOYSA-N 2-tert-butylpyridine Chemical compound CC(C)(C)C1=CC=CC=N1 UUIMDJFBHNDZOW-UHFFFAOYSA-N 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 239000007784 solid electrolyte Substances 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- WSUWIPJXQXYVNR-UHFFFAOYSA-J 2-(4-carboxylatopyridin-2-yl)pyridine-4-carboxylate;ruthenium(4+);dithiocyanate Chemical compound [Ru+4].[S-]C#N.[S-]C#N.[O-]C(=O)C1=CC=NC(C=2N=CC=C(C=2)C([O-])=O)=C1 WSUWIPJXQXYVNR-UHFFFAOYSA-J 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920003182 Surlyn® Polymers 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- -1 silyl propyl Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2004—Light-sensitive devices characterised by the electrolyte, e.g. comprising an organic electrolyte
- H01G9/2018—Light-sensitive devices characterised by the electrolyte, e.g. comprising an organic electrolyte characterised by the ionic charge transport species, e.g. redox shuttles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrochemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hybrid Cells (AREA)
Abstract
본 발명은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말; 및 액체 전해질을 포함하는 염료감응 태양전지용 나노젤형 전해질, 이의 제조방법 및 이를 이용한 염료감응 태양전지에 관한 것이다. 고온에서 액체 전해질이 증발되는 현상을 감소시켜 장기 안정성을 향상시킬 수 있으며, 프린팅 방법에 의해 전해질층 형성이 가능하여 양산성이 우수한 본 발명의 염료감응 태양전지용 나노젤형 전해질을 염료감응 태양전지에 활용함으로써, 우수한 안정성, 양산성, 광전변환효율을 갖는 염료감응 태양전지를 제공할 수 있다.The present invention is a silylpropyl methacrylate is bonded nano silica powder; And it relates to a dye-sensitized solar cell nanogel electrolyte comprising a liquid electrolyte, a manufacturing method thereof and a dye-sensitized solar cell using the same. The long-term stability can be improved by reducing the phenomenon of evaporation of the liquid electrolyte at a high temperature, and the formation of the electrolyte layer by the printing method enables the dye-sensitized solar cell nanogel electrolyte of the present invention having excellent mass productivity to be used in the dye-sensitized solar cell. By doing so, it is possible to provide a dye-sensitized solar cell having excellent stability, mass productivity, and photoelectric conversion efficiency.
Description
본 발명은 염료감응 태양전지용 나노젤형 전해질, 이의 제조방법 및 이를 이용한 염료감응 태양전지에 관한 것으로, 보다 상세하게는 실릴프로필메타크릴레이트가 결합된 나노실리카 분말; 및 액체 전해질을 포함하는 염료감응 태양전지용 나노젤형 전해질, 이의 제조방법 및 이를 이용한 염료감응 태양전지에 관한 것이다.
The present invention relates to a nanogel electrolyte for a dye-sensitized solar cell, a method for manufacturing the same, and a dye-sensitized solar cell using the same, and more particularly, nanosilica powder having a silylpropyl methacrylate; And it relates to a dye-sensitized solar cell nanogel electrolyte comprising a liquid electrolyte, a manufacturing method thereof and a dye-sensitized solar cell using the same.
최근 심각한 환경오염 문제와 화석 에너지 고갈로 차세대 청정 에너지 개발에 대한 중요성이 증대되고 있다. 그 중에서도 태양전지는 태양 에너지를 직접 전기 에너지로 전환시키는 장치로서, 공해가 적고, 자원이 무한적이며 반영구적인 수명을 가지고 있어 미래 에너지 문제를 해결할 수 있는 에너지원으로 기대되고 있다. Recently, the importance of developing the next generation of clean energy is increasing due to serious environmental pollution and depletion of fossil energy. Among them, the solar cell is a device that directly converts solar energy into electrical energy, and is expected to be an energy source capable of solving future energy problems due to its low pollution, infinite resources, and a semi-permanent lifetime.
이와 같은 태양전지를 물질별로 크게 구분하면 무기물 태양전지(inorganic solar cell), 염료감응 태양전지(dye-sensitized solar cell) 및 유기물 태양전지(organic solar cell)가 있다.The solar cells are classified into materials according to the material, and there are inorganic solar cells, dye-sensitized solar cells, and organic solar cells.
무기물 태양전지로서 단결정 실리콘이 주로 사용되고 있고, 이러한 단결정 실리콘계 태양전지는 박막형 태양전지로 제조될 수 있는 장점을 가지나, 많은 비용이 소요되고, 안정성이 낮은 문제점을 가지고 있다. Single crystal silicon is mainly used as an inorganic solar cell, and such single crystal silicon-based solar cell has an advantage of being manufactured as a thin-film solar cell, but has a problem of high cost and low stability.
1991년 스위스의 그라첼(Gratzel) 등에 의해 개발된 염료감응 태양전지는 가시광선을 흡수하여 전자-홀 쌍(electron-hole pair)을 생성할 수 있는 감광성 염료분자와 생성된 전자를 전달하는 나노결정성 산화티타늄입자로 이루어진 산화물 반도체 전극을 이용한 광전기화학적 태양전지로서, 색소증감형 태양전지 또는 습식 태양전지라고도 불린다. 이와 같은 태양전지는 실리콘형 태양전지와 비교하여 제조공정이 간단하고 제조비용이 저렴하며 실용적으로 사용가능한 광전변환 효율을 갖는 특징이 있어, 이에 관하여 많은 연구가 진행되고 있다.Dye-sensitized solar cells, developed in 1991 by Gratzel et al., Switzerland, are photosensitive dye molecules capable of absorbing visible light to produce electron-hole pairs, and nanocrystals that deliver the resulting electrons. As a photoelectrochemical solar cell using an oxide semiconductor electrode made of oxidized titanium oxide particles, it is also called a dye-sensitized solar cell or a wet solar cell. Such a solar cell has a feature of having a photoelectric conversion efficiency that is simple in manufacturing process, low in manufacturing cost, and practically usable as compared with a silicon type solar cell, and many studies have been conducted on this.
일반적으로 염료감응 태양전지에는 액체 전해질을 사용하여 전지모듈의 안정성 문제가 대두되고 있으며, 특히 액체 전해질은 밀봉이 어렵고 외부 온도의 상승으로 인한 전해질의 휘발 또는 누출의 문제가 있어, 장기간 사용하는 경우 전기화학적 안정성이 결여되는 등의 문제점이 발생한다.In general, dye-sensitized solar cells have a problem of stability of the battery module using a liquid electrolyte, especially the liquid electrolyte is difficult to seal and there is a problem of volatilization or leakage of the electrolyte due to the rise of the external temperature, the electrical Problems such as lack of chemical stability arise.
이러한 문제점을 해결하고자, 최근에는 액체 전해질 대신 무기 고체 전해질, 고분자 고체 전해질 등이 개발되었으나 이러한 고체형 전해질을 사용하는 경우에는 전자 및 이온의 계면전달이 좋지 않아 액체 전해질과 비교하여 광전변환 효율이 저하되는 문제점이 있다. 또한, 이러한 비액체계 전해질의 문제점을 해결하고자 젤형 전해질이 개발되고 있으며, 이전에 발표된 논문에서는 나노실리카 물질과 액체 전해질을 혼합한 젤형 전해질에 대한 연구가 발표된 바 있다(Journal of Fluorine Chemistry 125 (2004) 1241-1245). 상기 논문에 개시된 나노실리카 물질과 액체 전해질을 혼합하여 제조된 젤형 전해질은 나노실리카와 액체 전해질간의 친화력이 좋지 않아서 고온에서 액체 전해질이 쉽게 증발되는 단점이 있다.In order to solve this problem, an inorganic solid electrolyte and a polymer solid electrolyte have been developed instead of the liquid electrolyte. However, when the solid electrolyte is used, the photoelectric conversion efficiency is lowered compared to the liquid electrolyte because of poor interfacial transfer of electrons and ions. There is a problem. In addition, gel-type electrolytes have been developed to solve the problems of non-liquid electrolytes, and in the previously published papers, studies on gel electrolytes mixed with nanosilica materials and liquid electrolytes have been published (Journal of Fluorine Chemistry 125 ( 2004) 1241-1245). The gel electrolyte prepared by mixing the nanosilica material and the liquid electrolyte disclosed in the paper has a disadvantage in that the liquid electrolyte easily evaporates at a high temperature due to poor affinity between the nanosilica and the liquid electrolyte.
본 발명자들은 이러한 문제점을 해결하기 위하여 예의 연구를 거듭한 결과, 실릴프로필메타크릴레이트와 나노실리카 분말을 결합시킨 물질을 액체 전해질과 혼합하여 나노젤형 전해질을 제조하는 경우 액체 전해질 간의 친화력이 향상되어 고온에서의 증발 현상을 감소시킴으로써 염료감응 태양전지의 안정성을 향상시킬 수 있으며, 동시에 광전변환효율을 향상시킬 수 있다는 것을 알게 되어 본 발명을 완성하기에 이르렀다.
The present inventors have intensively researched to solve these problems, and when a nanogel electrolyte is prepared by mixing a material in which silylpropyl methacrylate and nanosilica powder are combined with a liquid electrolyte, the affinity between the liquid electrolytes is improved and high temperature is achieved. By reducing the evaporation phenomenon in the present invention, it was found that the stability of the dye-sensitized solar cell can be improved and the photoelectric conversion efficiency can be improved.
본 발명의 목적은 나노실리카 분말과 액체 전해질 간의 친화력을 향상시켜 고온에서의 증발 현상을 감소시킬 수 있는 염료감응 태양전지용 나노젤형 전해질을 제공하는 데 있다. An object of the present invention is to provide a nanogel electrolyte for dye-sensitized solar cells that can reduce the evaporation phenomenon at high temperature by improving the affinity between the nano-silica powder and the liquid electrolyte.
본 발명의 다른 목적은 우수한 장기 안정성 및 양산성을 갖는 염료감응 태양전지용 나노젤형 전해질을 제공하는 데 있다. Another object of the present invention is to provide a nanogel electrolyte for dye-sensitized solar cells having excellent long-term stability and mass production.
본 발명의 또 다른 목적은 광전변환효율이 향상된 염료감응 태양전지를 제공하는 데 있다.
Still another object of the present invention is to provide a dye-sensitized solar cell having improved photoelectric conversion efficiency.
상기 목적을 달성하기 위하여, 본 발명은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말; 및 액체 전해질을 포함하는 염료감응 태양전지용 나노젤형 전해질을 제공한다.In order to achieve the above object, the present invention is a silyl propyl methacrylate is bonded nano silica powder; And it provides a nano-gel electrolyte for dye-sensitized solar cell comprising a liquid electrolyte.
상기 나노젤형 전해질은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말 10∼60 중량% 및 액체 전해질 40∼90 중량%로 혼합하여 제조하는 것이 바람직하다.The nanogel electrolyte is preferably prepared by mixing 10 to 60 wt% of the nanosilica powder in which silylpropyl methacrylate is bound and 40 to 90 wt% of the liquid electrolyte.
상기 액체 전해질은 산화-환원 유도체 및 유기용매를 포함하는 것을 사용할 수 있다.The liquid electrolyte may include an oxide-reducing derivative and an organic solvent.
상기 산화-환원 유도체로는 요오드화 리튬, 요오드화 나트륨, 요오드화 칼륨, 브롬화 리튬, 브롬화 나트륨, 브롬화 칼륨, 4급 암모늄염, 이미다졸륨염, 피리디늄염 등을 사용할 수 있다.Examples of the redox derivatives include lithium iodide, sodium iodide, potassium iodide, lithium bromide, sodium bromide, potassium bromide, quaternary ammonium salts, imidazolium salts, pyridinium salts, and the like.
상기 유기용매로는 아세토니트릴, 3-메톡시프로피오니트릴, 에틸렌카보네이트, 프로필렌카보네이트, 디메틸카보네이트, 디에틸카보네이트, 에틸메틸카보네이트, 테트라하이드로퓨란, 감마-부티로락톤 등을 사용할 수 있다.As the organic solvent, acetonitrile, 3-methoxypropionitrile, ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, tetrahydrofuran, gamma-butyrolactone, and the like can be used.
또한, 본 발명은 (S1) 실릴프로필메타크릴레이트가 결합된 나노실리카 분말을 제조하는 단계; (S2) 산화-환원 유도체 및 유기용매를 혼합하여 액체 전해질을 제조하는 단계; 및 (S3) 상기 실릴프로필메타크릴레이트가 결합된 나노실리카 분말과 액체 전해질을 혼합하는 단계를 포함하는 염료감응 태양전지용 나노젤형 전해질의 제조방법을 제공한다.In addition, the present invention comprises the steps of preparing nanosilica powder (S1) silylpropyl methacrylate is bonded; (S2) preparing a liquid electrolyte by mixing a redox derivative and an organic solvent; And (S3) provides a method for producing a nanogel electrolyte for dye-sensitized solar cell comprising the step of mixing the silylpropyl methacrylate-bound nanosilica powder and a liquid electrolyte.
본 발명의 일 실시형태에 있어서, 상기 실릴프로필메타크릴레이트가 결합된 나노실리카 분말은 나노실리카 분말과 산성용액을 혼합하여 제조된 나노실리카 분말 용액을 제조하는 단계; 및 상기 나노실리카 분말 용액의 용매를 증발시켜 젤을 얻은 후 유기 용매 및 3-(트리메톡시실릴)프로필메타크릴레이트를 첨가하여 교반하는 단계를 거쳐 제조될 수 있다.In one embodiment of the present invention, the silylpropyl methacrylate-bound nanosilica powder is prepared by preparing a nanosilica powder solution prepared by mixing the nanosilica powder and an acid solution; And evaporating the solvent of the nanosilica powder solution to obtain a gel, followed by stirring by adding an organic solvent and 3- (trimethoxysilyl) propylmethacrylate.
또한, 본 발명은 음극계 전극, 양극계 전극 및 나노젤형 전해질을 포함하는 염료감응 태양전지로서, 상기 전해질층은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말; 및 액체 전해질을 포함하는 나노젤형 전해질을 음극계 전극의 상부에 프린팅하여 형성되는 것을 특징으로 하는 염료감응 태양전지를 제공한다.
In addition, the present invention is a dye-sensitized solar cell comprising a cathode electrode, an anode electrode and a nano-gel electrolyte, the electrolyte layer is a nanosilica powder combined with silylpropyl methacrylate; And it provides a dye-sensitized solar cell characterized in that it is formed by printing a nanogel-type electrolyte comprising a liquid electrolyte on top of the negative electrode.
본 발명은 액체 전해질과 친화성이 우수한 실릴프로필메타크릴레이트가 결합된 나노실리카 분말을 포함하는 염료감응 태양전지용 나노젤형 전해질에 관한 것으로, 고온에서 액체 전해질이 증발되는 현상을 감소시켜 안정성을 향상시킬 수 있으며, 프린팅 방법에 의해 전해질층 형성이 가능하여 양산성이 우수한 나노젤형 전해질을 염료감응 태양전지에 활용함으로써, 우수한 안정성, 양산성, 광전변환효율을 갖는 염료감응 태양전지를 제공할 수 있다.
The present invention relates to a nanogel electrolyte for a dye-sensitized solar cell comprising a nanosilica powder in which silylpropyl methacrylate is excellent in affinity with a liquid electrolyte, and improves stability by reducing the phenomenon of evaporation of the liquid electrolyte at a high temperature. The dye-sensitized solar cell having excellent stability, mass productivity, and photoelectric conversion efficiency can be provided by utilizing a nanogel electrolyte having a good mass productivity by forming an electrolyte layer by a printing method.
도 1은 본 발명의 실시예 1에 따라 제조된 실릴프로필메타크릴레이트가 결합된 나노실리카 분말을 개략적으로 나타낸 도면이다.1 is a view schematically showing a nanosilica powder in which silylpropyl methacrylate is prepared according to Example 1 of the present invention.
이하 본 발명에 따른 염료감응 태양전지용 나노젤형 전해질, 이의 제조방법 및 이를 이용한 염료감응 태양전지를 구체적으로 설명한다.
Hereinafter, a nanogel electrolyte for a dye-sensitized solar cell according to the present invention, a manufacturing method thereof, and a dye-sensitized solar cell using the same will be described in detail.
본 발명에 따른 염료감응 태양전지용 나노젤형 전해질은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말; 및 액체 전해질을 포함하여 구성된다.Nanogel electrolyte for a dye-sensitized solar cell according to the present invention is a nanosilica powder in which silylpropyl methacrylate is bound; And a liquid electrolyte.
도 1을 참조하며, 실릴프로필메타크릴레이트가 결합된 나노실리카 분말(100)은 나노실리카 분말(110) 표면에 실란커플링제를 이용하여 실릴프로필메타크릴레이트(120)가 결합되어 제조된다.Referring to Figure 1, the silylpropyl methacrylate is bonded to the
실릴프로필메타크릴레이트가 결합된 나노실리카 분말(100)은 액체 전해질과 친화성이 우수하여 고온에서의 액체 전해질의 증발 현상을 감소시킬 수 있기 때문에 장기 안정성이 좋고, 액체전해질만을 적용한 염료감응 태양전지에 비해 효율을 향상시킬 수 있는 장점이 있다(시험예 1 참조).
본 발명의 나노젤형 전해질에 포함되는 액체 전해질은 산화-환원 유도체 및 유기용매를 포함하는 것을 사용할 수 있다.The liquid electrolyte included in the nanogel-type electrolyte of the present invention may be one containing an redox derivative and an organic solvent.
상기 산화-환원 유도체로는 요오드화 리튬, 요오드화 나트륨, 요오드화 칼륨, 브롬화 리튬, 브롬화 나트륨, 브롬화 칼륨, 4급 암모늄염, 이미다졸륨염, 피리디늄염 등을 사용할 수 있다.Examples of the redox derivatives include lithium iodide, sodium iodide, potassium iodide, lithium bromide, sodium bromide, potassium bromide, quaternary ammonium salts, imidazolium salts, pyridinium salts, and the like.
상기 유기용매로는 아세토니트릴, 3-메톡시프로피오니트릴, 에틸렌카보네이트, 프로필렌카보네이트, 디메틸카보네이트, 디에틸카보네이트, 에틸메틸카보네이트, 테트라하이드로퓨란, 감마-부티로락톤 등을 사용할 수 있다.As the organic solvent, acetonitrile, 3-methoxypropionitrile, ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, tetrahydrofuran, gamma-butyrolactone, and the like can be used.
본 발명에 따른 나노젤형 전해질은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말 10∼60 중량% 및 액체 전해질 40∼90 중량%로 혼합하여 제조할 수 있다. 본 발명에 따른 나노젤형 전해질의 제조시 나노실리카 분말이 10 중량% 미만으로 포함되면 점도가 낮아서 젤이 형성되지 않을 수 있고, 나노실리카 분말이 60중량%를 초과하여 포함되면 액체 전해질 양이 적어서 광전변환효율이 급격히 저하될 수 있다.
The nanogel electrolyte according to the present invention may be prepared by mixing 10 to 60% by weight of the nanosilica powder in which silylpropyl methacrylate is bound and 40 to 90% by weight of the liquid electrolyte. In the preparation of the nanogel-type electrolyte according to the present invention, if the nanosilica powder is included in less than 10% by weight, the gel may not be formed due to the low viscosity. If the nanosilica powder is included in excess of 60% by weight, the amount of the liquid electrolyte may be small. Conversion efficiency can be drastically reduced.
또한, 본 발명은 (S1) 실릴프로필메타크릴레이트가 결합된 나노실리카 분말을 제조하는 단계; (S2) 산화-환원 유도체 및 유기용매를 혼합하여 액체 전해질을 제조하는 단계; 및 (S3) 상기 실릴프로필메타크릴레이트가 결합된 나노실리카 분말과 액체 전해질을 혼합하는 단계를 포함하는 염료감응 태양전지용 나노젤형 전해질의 제조방법을 제공한다.In addition, the present invention comprises the steps of preparing nanosilica powder (S1) silylpropyl methacrylate is bonded; (S2) preparing a liquid electrolyte by mixing a redox derivative and an organic solvent; And (S3) provides a method for producing a nanogel electrolyte for dye-sensitized solar cell comprising the step of mixing the silylpropyl methacrylate-bound nanosilica powder and a liquid electrolyte.
본 발명에서 사용하는 실릴프로필메타크릴레이트가 결합된 나노실리카 분말은 하기와 같이 제조될 수 있다.The nanosilica powder in which silylpropyl methacrylate is used in the present invention may be prepared as follows.
우선 나노실리카 분말과 산성용액을 혼합하여 제조된 나노실리카 분말 용액을 제조한다.First, a nanosilica powder solution prepared by mixing nanosilica powder and an acid solution is prepared.
본 발명의 일 실시형태에 있어서, 상기 나노실리카 분말 용액은 나노실리카 분말 2∼20 중량% 및 산성용액 80∼98 중량%를 혼합하여 제조될 수 있다.In one embodiment of the present invention, the nano-silica powder solution may be prepared by mixing 2 to 20% by weight nanosilica powder and 80 to 98% by weight acidic solution.
나노실리카 분말은 본 발명의 속하는 기술분야에서 통상적으로 알려진 것을 사용할 수 있으며 특별히 제한되지 않는다. Nano-silica powder may be used conventionally known in the art to which the present invention belongs, and is not particularly limited.
산성 용액으로는 염산, 질산, 황산, 아세트산 등을 사용할 수 있으며, 염산을 사용하는 것이 바람직하다.Hydrochloric acid, nitric acid, sulfuric acid, acetic acid, etc. can be used as an acidic solution, It is preferable to use hydrochloric acid.
이후, 제조된 나노실리카 분말 용액으로부터 회전증발기 등을 사용하여 용매를 증발시켜 젤 상태로 수득한 후, pH가 4∼5가 되도록 물로 세척하는 것이 바람직하다.Thereafter, the solvent is evaporated from the prepared nanosilica powder solution using a rotary evaporator to obtain a gel state, and then washed with water so as to have a pH of 4-5.
나노실리카 분말 용액의 용매를 증발시켜 젤을 얻은 후 유기 용매 및 3-(트리메톡시실릴)프로필메타크릴레이트(3-(trimethoxysilyl)propyl methacrylate)를 첨가하여 교반한 후, 클로로포름 등을 이용하여 세척하고 건조하여 본 발명에서 사용하는 실릴프로필메타크릴레이트가 결합된 나노실리카 분말을 얻을 수 있다.After evaporating the solvent of the nanosilica powder solution to obtain a gel, an organic solvent and 3- (trimethoxysilyl) propyl methacrylate were added and stirred, followed by washing with chloroform or the like. And dried to obtain a nanosilica powder in which silylpropyl methacrylate is used in the present invention.
상기 유기용매로는 에탄올, 메탄올, 프로판올, 이소프로판올 등의 알콜계 용매를 사용할 수 있으나, 이에 제한되지 않는다. The organic solvent may be an alcohol solvent such as ethanol, methanol, propanol, isopropanol, but is not limited thereto.
또한, 본 발명은 음극계 전극, 양극계 전극 및 전해질층을 포함하는 염료감응 태양전지로서, 상기 전해질층은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말; 및 액체 전해질을 포함하는 나노젤형 전해질을 음극계 전극의 상부에 스크린 프린팅 방법 등으로 프린팅하여 형성된 것을 특징으로 하는 염료감응 태양전지를 제공한다.
The present invention also provides a dye-sensitized solar cell including a cathode electrode, an anode electrode, and an electrolyte layer, wherein the electrolyte layer comprises nanosilica powder in which silylpropyl methacrylate is bound; And it provides a dye-sensitized solar cell, characterized in that formed by printing a nano-gel electrolyte containing a liquid electrolyte on the upper portion of the negative electrode by a screen printing method or the like.
이하, 본 발명의 바람직한 실시예를 상세히 설명한다.
Hereinafter, preferred embodiments of the present invention will be described in detail.
(1) (One) 실릴프로필메타크릴레이트가Silylpropyl methacrylate 결합된Combined 나노실리카Nanosilica 분말의 제조 Manufacture of powder
나노실리카 분말 2.5g과 10% 염산용액 50ml를 섞은 후 1시간 동안 교반하고 회전증발기로 용매를 증발시켜 젤을 얻은 후 pH 가 4∼5가 될 때까지 물로 수회 세척하였다. 이에 에탄올 40 mL를 첨가하고, 3-(트리메톡시실릴)프로필메타크릴레이트 9.8mL를 한 방울씩 떨어뜨려 상온에서 48시간 교반하여 반응을 완결시킨 후 클로로포름 50 ml로 세척하고 진공오븐에서 건조하여 하얀색의 실릴프로필메타크릴레이트가 결합된 나노실리카 분말을 수득하였다.
2.5 g of nanosilica powder and 50 ml of 10% hydrochloric acid solution were mixed, stirred for 1 hour, the solvent was evaporated with a rotary evaporator to obtain a gel, and washed several times with water until the pH was 4-5. 40 mL of ethanol was added thereto, and 9.8 mL of 3- (trimethoxysilyl) propyl methacrylate was dropped one by one, stirred at room temperature for 48 hours to complete the reaction, washed with 50 ml of chloroform and dried in a vacuum oven. White silica silylpropyl methacrylate to give a nano-silica powder bound.
(2) (2) 실릴프로필메타크릴레이트가Silylpropyl methacrylate 결합된Combined 나노실리카Nanosilica 분말을 포함한 Powdered 나노젤형Nano gel type 전해질의 제조 Preparation of Electrolyte
0.1 M의 LiI, 0.05 M의 I2, 0.6 M의 1-부틸-3-메틸이미다졸륨 아이오다이드 및 0.5 M의 t-부틸 피리딘을 0.77 ml의 3-메톡시 프로피오니트릴에 용해시켜 1g의 액체 전해액을 제조한 후, 이에 실시예 1에서 제조한 실릴프로필메타크릴레이트가 결합된 나노실리카 분말 0.6g을 혼합하여 본 발명에 따른 나노젤형 전해질을 제조하였다.
0.1 g of LiI, 0.05 M of I 2 , 0.6 M of 1-butyl-3-methylimidazolium iodide and 0.5 M of t-butyl pyridine are dissolved in 0.77 ml of 3-methoxy propionitrile and 1 g After preparing a liquid electrolyte solution, 0.6g of the nanosilica powder combined with the silylpropyl methacrylate prepared in Example 1 was mixed to prepare a nanogel electrolyte according to the present invention.
염료감응 태양전지의 제조Manufacture of Dye-Sensitized Solar Cell
(1) 불소가 도핑된 틴 옥사이드 투명전도성 산화물층이 형성된 투명 유리 기판을 준비하였다. 상기 기판의 투명전도성 산화물층 상부에 이산화티탄을 포함하는 코팅용 조성물을 닥터블레이드법으로 도포하고, 500 ℃에서 30분 동안 열처리하여, 나노크기의 금속 산화물 간의 접촉 및 충진이 이루어지도록 하여 약 8 ㎛ 두께의 나노 산화물층을 형성시켰다. 이어서, 상기 나노 산화물층의 상부에 이산화티탄을 포함하는 코팅용 조성물을 동일한 방법으로 도포하고, 500 ℃의 온도에서 30분 동안 열처리하여 약 15 ㎛ 두께의 나노 산화물층을 형성시켰다. 0.2 nM의 루테늄 디티오시아네이트 2,2′-비피리딜-4,4′-디카르복실레이트 염료 용액을 제조하였다. 여기에 상기 나노 산화물층이 형성된 기판을 24시간 동안 담지한 후 건조시켜 나노크기의 금속 산화물에 염료를 흡착시켜 음극계 전극을 제조하였다. (1) A transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed was prepared. Applying a coating composition comprising titanium dioxide on the transparent conductive oxide layer of the substrate by a doctor blade method, and heat-treated at 500 ℃ for 30 minutes, so that the contact and filling between nano-sized metal oxide is made to about 8 ㎛ A thick nano oxide layer was formed. Subsequently, a coating composition including titanium dioxide was applied to the upper portion of the nano oxide layer by the same method, and heat-treated at a temperature of 500 ° C. for 30 minutes to form a nano oxide layer having a thickness of about 15 μm. A 0.2 nM ruthenium dithiocyanate 2,2'-bipyridyl-4,4'-dicarboxylate dye solution was prepared. The substrate having the nano oxide layer formed thereon was supported for 24 hours and then dried to adsorb a dye to the nano-sized metal oxide to prepare a cathode electrode.
(2) 불소가 도핑된 틴 옥사이드 투명전도성 산화물층이 형성된 투명 유리 기판을 준비하였다. 상기 기판의 투명전도성 산화물층 상부에 육염화백금산(H2PtCl6)이 녹아있는 2-프로판올 용액을 떨어뜨린 후, 450 ℃에서 30분 동안 열처리하여 백금층을 형성시켜 양극계 전극을 제조하였다. (2) A transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed was prepared. A 2-propanol solution in which chloroplatinic acid (H 2 PtCl 6 ) was dissolved was dropped on the transparent conductive oxide layer of the substrate, and then thermally treated at 450 ° C. for 30 minutes to form a platinum layer, thereby preparing an anode-based electrode.
(3) 실시예 1에서 제조한 나노젤형 전해질을 음극계 전극의 상부에 도포하고, 스크린프린팅 방법으로 코팅층을 형성시켰다. (3) The nanogel electrolyte prepared in Example 1 was applied to the upper portion of the negative electrode, and a coating layer was formed by screen printing.
(4) 제조된 음극계 전극과 양극계 전극이 서로 대향하도록 한 후, SURLYN(Du Pont사 제조)으로 이루어지는 약 60 ㎛ 두께의 열가소성 고분자층을 형성한 후, 130 ℃의 오븐에 넣어 2분 동안 유지하여 두 전극을 부착하여 밀봉함으로써 염료감응 태양전지를 제조하였다.
(4) After the prepared cathode and anode electrodes face each other, a thermoplastic polymer layer having a thickness of about 60 μm made of SURLYN (manufactured by Du Pont) is formed, and then placed in an oven at 130 ° C. for 2 minutes. The dye-sensitized solar cell was manufactured by attaching and sealing two electrodes while holding.
[비교예 1]Comparative Example 1
0.1 M의 LiI, 0.05 M의 I2, 0.6 M의 1-부틸-3-메틸이미다졸륨 아이오다이드 및 0.5 M의 t-부틸 피리딘을 0.77 ml의 3-메톡시 프로피오니트릴에 용해시켜 1g의 액체 전해질을 제조한 후, 이에 일반 나노실리카 분말 0.1 g을 혼합하여 나노젤형 전해질을 제조하였다. 이와 같이 제조된 나노젤형 전해질을 음극계 전극의 상부에 도포하고, 스크린프린팅 방법으로 코팅층을 형성한 것을 제외하고 실시예 2와 동일하게 수행하여 염료감응 태양전지를 제조하였다.
0.1 g of LiI, 0.05 M of I 2 , 0.6 M of 1-butyl-3-methylimidazolium iodide and 0.5 M of t-butyl pyridine are dissolved in 0.77 ml of 3-methoxy propionitrile and 1 g After preparing a liquid electrolyte, 0.1 g of the general nanosilica powder was mixed to prepare a nanogel electrolyte. The dye-sensitized solar cell was manufactured in the same manner as in Example 2 except that the nanogel electrolyte prepared as described above was applied to the upper part of the cathode electrode and the coating layer was formed by the screen printing method.
[비교예 2]Comparative Example 2
0.1 M의 LiI, 0.05 M의 I2, 0.6 M의 1-부틸-3-메틸이미다졸륨 아이오다이드 및 0.5 M의 t-부틸 피리딘을 0.77 ml의 3-메톡시 프로피오니트릴에 용해시켜 제조된 액체 전해질을 사용한 것을 제외하고 실시예 2와 동일하게 수행하여 염료감응 태양전지를 제조하였다.
Prepared by dissolving 0.1 M LiI, 0.05 M I 2 , 0.6 M 1-butyl-3-methylimidazolium iodide and 0.5 M t-butyl pyridine in 0.77 ml 3-methoxy propionitrile. A dye-sensitized solar cell was prepared in the same manner as in Example 2 except that the prepared liquid electrolyte was used.
시험예Test Example 1 One
상기 실시예 2 및 비교예 1 및 2에서 제조한 염료감응 태양전지의 광전환 효율을 평가하기 위하여 하기와 같은 방법으로 광전압 및 광전류를 측정하여 광전기적 특성을 관찰하고, 이를 통하여 얻어진 전류밀도(Isc), 전압(Voc), 및 충진계수(fillfactor, ff)를 이용하여 광전환 효율(ηe)를 하기 수학식 1로 계산하였다. In order to evaluate the light conversion efficiency of the dye-sensitized solar cells prepared in Example 2 and Comparative Examples 1 and 2, the photovoltaic characteristics were observed by measuring the photovoltage and the photocurrent as follows, and the current density obtained through I sc ), the voltage (V oc ), and the fill factor (fill factor, ff) using the light conversion efficiency (η e ) was calculated by the following equation (1).
이때, 광원으로는 제논 램프(Xenon lamp, Oriel)를 사용하였으며, 상기 제논 램프의 태양조건(AM 1.5)은 표준 태양전지를 사용하여 보정하였다. At this time, Xenon lamp (Oriel) was used as the light source, and the solar condition (AM 1.5) of the xenon lamp was corrected using a standard solar cell.
[수학식 1][Equation 1]
ηe = (Voc × Isc × ff) / (Pine)η e = (V oc × I sc × ff) / (P ine )
상기 수학식 1에서, (Pine)는 100 ㎽/㎠(1 sun)을 나타낸다. In Equation 1, (P ine ) represents 100 ㎽ / ㎠ (1 sun).
상기와 같이 측정된 값들을 하기 표 1에 나타내었다. The values measured as above are shown in Table 1 below.
상기 표 1에 나타낸 바와 같이, 본 발명에 따른 나노젤형 전해질을 사용하여 형성된 코팅층을 포함하는 염료감응 태양전지는 종래 사용되었던 일반 실리카 나노젤을 사용한 염료감응 태양전지(비교예 1) 및 액체 전해질을 사용하는 염료감응 태양전지(비교예 2)와 비교하여 전류밀도가 높아지고, 광전환 효율이 향상된 것을 확인할 수 있었다.
As shown in Table 1, the dye-sensitized solar cell comprising a coating layer formed using the nanogel-type electrolyte according to the present invention is a dye-sensitized solar cell (Comparative Example 1) and a liquid electrolyte using a conventional silica nanogel was used. Compared with the dye-sensitized solar cell (Comparative Example 2) used, it was confirmed that the current density was higher and the light conversion efficiency was improved.
이상 본 발명을 바람직한 실시예에 대해서 설명하지만, 본 발명은 상술한 특정 실시예에 한정되는 것은 아니며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 그 기술적 사상을 벗어나지 않고 다양하게 변형 실시할 수 있을 것이다. 따라서 본 발명의 권리범위는 특정 실시예가 아니라, 첨부된 특허청구범위에 의해 정해지는 것으로 해석되어야 한다.
Although the present invention has been described with reference to preferred embodiments, the present invention is not limited to the above-described specific embodiments, and those skilled in the art to which the present invention pertains have various modifications without departing from the technical spirit. You can do it. Therefore, the scope of the present invention should be construed as defined by the appended claims rather than the specific embodiments.
* 도면의 주요부분에 대한 부호의 설명 *
100: 실릴프로필메타크릴레이트가 결합된 나노실리카 분말
110: 나노실리카 분말
120: 실릴프로필메타크릴레이트 Explanation of symbols on the main parts of the drawings
100: nanosilica powder in which silylpropyl methacrylate is bound
110: nano silica powder
120: silylpropyl methacrylate
Claims (12)
Nanosilica powder in which silylpropyl methacrylate is bound; And a nanogel electrolyte for dye-sensitized solar cells, including a liquid electrolyte.
상기 나노젤형 전해질은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말 10∼60 중량% 및 액체 전해질 40∼90 중량%로 포함되는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질.
The method according to claim 1,
The nanogel electrolyte is a dye-sensitized solar cell nanogel electrolyte, characterized in that it comprises 10 to 60% by weight of the nanosilica powder combined with silylpropyl methacrylate and 40 to 90% by weight of the liquid electrolyte.
상기 액체 전해질은 산화-환원 유도체 및 유기용매를 포함하는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질.
The method according to claim 1,
The liquid electrolyte is a nanogel electrolyte for dye-sensitized solar cells, characterized in that it comprises a redox derivative and an organic solvent.
상기 산화-환원 유도체는 오오드화 리튬, 요오드화 나트륨, 요오드화 칼륨, 브롬화 리튬, 브롬화 나트륨, 브롬화 칼륨, 4급 암모늄염, 이미다졸륨염 및 피리디늄염으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질.
The method according to claim 3,
The redox derivative is for dye-sensitized solar cells, characterized in that selected from the group consisting of lithium iodide, sodium iodide, potassium iodide, lithium bromide, sodium bromide, potassium bromide, quaternary ammonium salt, imidazolium salt and pyridinium salt Nanogel type electrolyte.
상기 유기용매는 아세토니트릴, 3-메톡시프로피오니트릴, 에틸렌카보네이트, 프로필렌카보네이트, 디메틸카보네이트, 디에틸카보네이트, 에틸메틸카보네이트, 테트라하이드로퓨란 및 감마-부티로락톤로 이루어진 군으로부터 선택되는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질.
The method according to claim 3,
The organic solvent is selected from the group consisting of acetonitrile, 3-methoxypropionitrile, ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, tetrahydrofuran and gamma-butyrolactone. Nanogel electrolyte for dye-sensitized solar cells.
(S2) 산화-환원 유도체 및 유기용매를 혼합하여 액체 전해질을 제조하는 단계; 및
(S3) 상기 실릴프로필메타크릴레이트가 결합된 나노실리카 분말과 액체 전해질을 혼합하는 단계;
를 포함하는 염료감응 태양전지용 나노젤형 전해질의 제조방법.
(S1) preparing a nanosilica powder to which silylpropyl methacrylate is bound;
(S2) preparing a liquid electrolyte by mixing a redox derivative and an organic solvent; And
(S3) mixing the nanosilica powder to which the silylpropyl methacrylate is bound and a liquid electrolyte;
Method for producing a nanogel electrolyte for dye-sensitized solar cells comprising a.
상기 실릴프로필메타크릴레이트가 결합된 나노실리카 분말은 나노실리카 분말과 산성용액을 혼합하여 제조된 나노실리카 분말 용액을 제조하는 단계; 및 상기 나노실리카 분말 용액의 용매를 증발시켜 젤을 얻은 후 유기 용매 및 3-(트리메톡시실릴)프로필메타크릴레이트를 첨가하여 교반하는 단계를 거쳐 제조되는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질의 제조방법.
The method of claim 6,
Preparing a nanosilica powder solution prepared by mixing the nanosilica powder in which the silylpropyl methacrylate is bonded to the nanosilica powder and an acid solution; And a gel obtained by evaporating the solvent of the nanosilica powder solution, followed by stirring by adding an organic solvent and 3- (trimethoxysilyl) propyl methacrylate, followed by stirring. Method for producing an electrolyte.
상기 나노실리카 분말 용액은 나노실리카 분말 2∼20 중량% 및 산성용액 80∼98 중량%를 혼합하여 제조되는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질의 제조방법.
The method according to claim 7,
The nano-silica powder solution is a method for producing a nanogel electrolyte for dye-sensitized solar cells, characterized in that the nano-silica powder is prepared by mixing 2 to 20% by weight and acidic solution of 80 to 98% by weight.
상기 산성용액은 염산, 질산, 황산 및 아세트산으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질의 제조방법.
The method according to claim 8,
The acid solution is a method for producing a nanogel electrolyte for dye-sensitized solar cells, characterized in that selected from the group consisting of hydrochloric acid, nitric acid, sulfuric acid and acetic acid.
상기 나노실리카 분말 용액의 용매를 증발시켜 젤을 얻은 후 pH가 4∼5가 되도록 물로 세척하는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질의 제조방법.
The method according to claim 7,
The method of manufacturing a nanogel electrolyte for dye-sensitized solar cells, characterized in that the solvent of the nanosilica powder solution is evaporated to obtain a gel and then washed with water to have a pH of 4-5.
상기 유기용매는 에탄올, 메탄올, 프로판올 및 이소프로판올로 이루어진 군으로부터 선택되는 것을 특징으로 하는 염료감응 태양전지용 나노젤형 전해질의 제조방법.
The method according to claim 7,
The organic solvent is a method for producing a nanogel electrolyte for dye-sensitized solar cells, characterized in that selected from the group consisting of ethanol, methanol, propanol and isopropanol.
상기 전해질층은 실릴프로필메타크릴레이트가 결합된 나노실리카 분말; 및 액체 전해질을 포함하는 젤형 전해질을 음극계 전극의 상부에 프린팅하여 형성된 것을 특징으로 하는 염료감응 태양전지.
A dye-sensitized solar cell comprising a cathode electrode, an anode electrode, and an electrolyte layer,
The electrolyte layer is nano-silica powder bonded to silylpropyl methacrylate; And a gel electrolyte including a liquid electrolyte formed on the cathode electrode.
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US20100021788A1 (en) | 2007-05-17 | 2010-01-28 | Canon Kabushiki Kaisha | Polymer electrolyte composite film, membrane-electrode assembly and fuel cell |
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