KR100786334B1 - Dye-sensitized solar cell containing fluorescent material and method for manufacturing thereof - Google Patents
Dye-sensitized solar cell containing fluorescent material and method for manufacturing thereof Download PDFInfo
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- KR100786334B1 KR100786334B1 KR1020070083421A KR20070083421A KR100786334B1 KR 100786334 B1 KR100786334 B1 KR 100786334B1 KR 1020070083421 A KR1020070083421 A KR 1020070083421A KR 20070083421 A KR20070083421 A KR 20070083421A KR 100786334 B1 KR100786334 B1 KR 100786334B1
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- dye
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- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title abstract description 13
- 238000000034 method Methods 0.000 title abstract description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010409 thin film Substances 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 14
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 12
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 10
- 239000002313 adhesive film Substances 0.000 claims abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 7
- 229910000314 transition metal oxide Inorganic materials 0.000 claims abstract description 5
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 5
- 150000003657 tungsten Chemical class 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000000151 deposition Methods 0.000 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 3
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 9
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229920002113 octoxynol Polymers 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- HNLXNOZHXNSSPN-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[4-(2,4,4-trimethylpentan-2-yl)phenoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCOCCOCCOCCO)C=C1 HNLXNOZHXNSSPN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
본 발명은 형광물질이 함유된 염료 감응형 태양전지 및 그 제조방법에 관한 것이다.The present invention relates to a dye-sensitized solar cell containing a fluorescent material and a method of manufacturing the same.
염료 감응형 태양전지는 높은 변환 효율과 저비용으로 제조 할 수 있는 새로운 타입의 태양전지이다. 일반적으로, 염료 감응형 태양전지는 염료의 태양광 흡수 능력을 이용하여 화학적으로 발전을 일으키는 태양전지의 일종으로서, 투명한 유리기판에 금속산화물과 염료가 포함된 광전극, 전해질, 그리고 상대전극 등으로 구성되어 있다.Dye-sensitized solar cells are a new type of solar cell that can be manufactured at high conversion efficiency and low cost. In general, a dye-sensitized solar cell is a type of solar cell that generates chemical power by using the dye's solar absorption ability. Consists of.
다공질 막의 형태로 존재하는 광 전극은 TiO2, ZnO, SnO2와 같은 넓은 밴드갭을 가진 n형 전이금속산화물 반도체로 구성되고, 이 표면에 단 분자 층의 염료가 흡착되어 있다. 태양광이 태양 전지에 입사되면 염료 속의 페르미 에너지 부근의 전자가 태양에너지를 흡수하여 전자가 채워지지 않은 상위 준위로 여기된다. 이때, 전자가 빠져나간 하위 준위의 빈자리는 전해질 속의 이온이 전자를 제공함으로써 다시 채워진다. 염료에 전자를 제공한 이온은 광전극으로 이동하여 전자를 제공받게 된다. 이때, 광전극은 전해질 속에 있는 이온의 산화환원 반응의 촉매로 작용하여 표면에서의 산화 환원 반응을 통하여 전해질 속의 이온에 전자를 제공하는 역할을 한다.The photoelectrode in the form of a porous membrane is composed of an n-type transition metal oxide semiconductor having a wide bandgap such as TiO 2 , ZnO, SnO 2, and a single molecule layer of dye is adsorbed on this surface. When sunlight enters the solar cell, electrons near the Fermi energy in the dye absorb the solar energy and are excited to higher levels where the electrons are not filled. At this time, the vacancy in the lower level where the electrons escape is filled again by the ions in the electrolyte providing the electrons. Ions that provide electrons to the dye move to the photoelectrode to receive electrons. At this time, the photoelectrode acts as a catalyst for the redox reaction of the ions in the electrolyte and serves to provide electrons to the ions in the electrolyte through a redox reaction on the surface.
종래의 염료 감응형 태양전지에서는 에너지 변환 효율을 개선시키기 위하여 촉매 작용이 우수한 백금 박막을 주로 사용하고 있으며 백금과 특성이 비슷한 팔라듐, 은, 금 등의 귀금속과 카본 블랙, 그라파이트와 같은 탄소계 전극을 사용하기도 한다. 이러한 종래의 백금 전극을 상대전극으로 사용하는 염료 감응형 태양전지는 태양 빛을 전기에너지로 변환하는 효율이 여전히 낮다는 것이 문제점으로 지적되고 있으며 이에 따라 태양전지의 효율을 높이기 위한 여러 가지 방법들이 모색되고 있다.In the conventional dye-sensitized solar cell, a platinum thin film having excellent catalytic action is mainly used to improve energy conversion efficiency, and precious metals such as palladium, silver, and gold, which are similar to platinum, and carbon-based electrodes such as carbon black and graphite are used. Also used. The dye-sensitized solar cell using the conventional platinum electrode as a counter electrode has been pointed out as a problem that the efficiency of converting solar light into electrical energy is still low, and thus various methods for increasing the efficiency of the solar cell are sought. It is becoming.
본 발명은 상술한 바와 같은 문제점을 해결하기 위한 것으로서, 염료 감응형 태양전지의 광 전극부에 형광물질을 혼입하여 가시광선 영역에서 형광물질의 발광특성으로 인해 높은 에너지 변환 효율을 얻는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the problems described above, and has a purpose to obtain a high energy conversion efficiency due to the light emission characteristics of the fluorescent material in the visible region by incorporating a fluorescent material in the photoelectrode portion of the dye-sensitized solar cell. .
또한, 광 전극에 함유된 형광물질로 인하여 어두운 곳에서 빛을 발함으로써 발광특성이 요구되는 목적의 상업용 홍보를 동시에 수행할 수 있는 태양전지를 제공하고자 한다.In addition, the present invention provides a solar cell capable of simultaneously performing a commercial promotion for the purpose of emitting light by emitting light in a dark place due to the fluorescent material contained in the photoelectrode.
본 발명 형광물질이 함유된 염료 감응형 태양전지는, 투명유리기판에 FTO(Fluorine-doped tin oxide) 박막을 증착시킨 투광층과 상기 FTO(Fluorine-doped tin oxide) 박막에 백금을 증착시킨 촉매층을 포함하는 상대 전극, 및In the dye-sensitized solar cell containing the fluorescent material of the present invention, a transparent layer on which a transparent glass substrate is deposited with a thin film of Fluorine-doped tin oxide (FTO) and a catalyst layer on which platinum is deposited on the thin film of Fluorine-doped tin oxide (FTO) A counter electrode comprising:
유리기판에 FTO(Fluorine-doped tin oxide) 박막을 증착시킨 투광층을 포함하는 광 전극을 포함하며;A photoelectrode including a light-transmitting layer on which a glass substrate is deposited with a Fluorine-doped tin oxide (FTO) thin film;
상기 광 전극은 텅스텐염, 규산염, 붕산염의 단일 성분 또는 두 가지 이상의 복합성분으로 구성된 형광물질의 혼합물과 이산화 티타늄을 포함한 전이금속산화물로 코팅되어 염료가 흡착되고,The photoelectrode is coated with a transition metal oxide including titanium dioxide and a mixture of fluorescent materials composed of a single component of tungsten salt, silicate, borate or two or more complex components, and dye is adsorbed,
상기 상대 전극과 광 전극 사이는 접착필름으로 밀봉되고 전해액으로 충진되는 것을 특징으로 하는 것이다.The counter electrode and the photoelectrode are sealed with an adhesive film and filled with an electrolyte.
본 발명에 의한 형광물질을 함유한 염료 감응형 태양전지 및 그 제조방법에 의하면, 가시광선 영역에서 형광물질의 발광특성으로 인해 2배 이상의 높은 에너지 변환 효율을 얻을 수 있다.According to the dye-sensitized solar cell containing the fluorescent material according to the present invention and a method of manufacturing the same, the energy conversion efficiency of two times or more can be obtained due to the light emission characteristics of the fluorescent material in the visible light region.
또한, 본 발명에 의해 광전극에 첨가된 형광 물질은 빛이 없는 어두운 곳에서 빛을 발하기 때문에 추가적인 발광 시스템이 필요한 제품 홍보에 시너지 효과를 발휘할 수 있다.In addition, the fluorescent material added to the photoelectrode according to the present invention emits light in a dark place where there is no light, it can exhibit a synergistic effect in the promotion of products requiring an additional light emitting system.
본 발명에 의한 형광물질이 함유된 염료감응형 태양전지는, 유리기판에 FTO(Fluorine-doped tin oxide) 박막을 증착시킨 투광층과 상기 FTO 박막에 백금을 증착시킨 촉매층을 포함하는 상대 전극, 및 유리기판에 FTO 박막을 증착시킨 투광층을 포함하는 광 전극을 포함하며; 상기 광 전극은 이산화 티타늄을 포함한 전이금속산화물과 형광물질의 혼합물로 코팅되어 염료가 흡착되고, 상대 전극과 광 전극 사이는 전해액으로 충진되어지는 것을 특징으로 한다. 상기 광전극의 형광물질은 텅스텐염, 규산염, 붕산염의 단일 성분 또는 두 가지 이상의 복합성분으로 구성되어 색을 발하는 것을 특징으로 한다.A dye-sensitized solar cell containing a fluorescent material according to the present invention includes a counter electrode including a light transmitting layer on which a glass substrate is deposited, and a catalyst layer on which the platinum is deposited on the FTO thin film. A photoelectrode comprising a light transmitting layer on which a FTO thin film is deposited on a glass substrate; The photoelectrode is coated with a mixture of a transition metal oxide including titanium dioxide and a fluorescent material to adsorb the dye, and is filled with an electrolyte between the counter electrode and the photoelectrode. The fluorescent material of the photoelectrode is characterized in that the color is composed of a single component of tungsten salt, silicate, borate or two or more complex components.
또한, 본 발명에 의한 형광물질이 함유된 염료감응형 태양전지의 제조방법은, 이산화티타늄(데구사 P-25), 폴리에틸렌글리코올(분자량 20,000), 트리톤 엑스 100, 에탄올을 질산 용액과 교반하고, 아세틸아세톤을 물과 교반한 후, 형광물질인 야그(YAG(Ce): Yttrium Aluminum Garnet: Y3Al5O12)를 첨가하여 다시 교반함으로써 광전극 페이스트를 제조하는 광전극 페이스트 제조단계; FTO(Fluorine-doped tin oxide) 처리된 유리기판에 상기 페이스트를 코팅하여 건조하고 열처리한 후 염료를 흡착시켜 광전극을 제조하는 광전극 제조단계; FTO(Fluorine-doped tin oxide) 처리된 유리기판에 백금층을 코팅하여 상대전극을 제조하는 상대전극 제조단계; 및 상기 광전극과 상대전극 사이를 접착필름으로 밀봉하고 그 사이의 공간에 전해액을 주입하는 전해액 주입단계로 이루어진다.In addition, the method for producing a dye-sensitized solar cell containing a fluorescent substance according to the present invention, the titanium dioxide (Degussa P-25), polyethylene glycol (molecular weight 20,000), Triton X 100, ethanol and stirred with a nitric acid solution A photoelectrode paste manufacturing step of preparing a photoelectrode paste by stirring acetylacetone with water and then adding a fluorescent substance, yag (YAG (Ce): Yttrium Aluminum Garnet: Y 3 Al 5 O 12 ) and stirring again; A photoelectrode manufacturing step of manufacturing a photoelectrode by coating the paste on a glass substrate treated with a fluorine-doped tin oxide (FTO), drying and heat-treating and adsorbing a dye; A counter electrode manufacturing step of manufacturing a counter electrode by coating a platinum layer on a glass substrate subjected to Fluorine-doped tin oxide (FTO); And an electrolyte injection step of sealing the photoelectrode and the counter electrode with an adhesive film and injecting an electrolyte into the space therebetween.
이하 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하기로 한다. 도 1은 본 발명에 따른 염료 감응형 태양전지의 구조를 개략적으로 나타낸단면도이다. 도 1을 참조하면, 본 발명에 의한 염료 감응형 태양전지는, 투명유리기판(11a)에 FTO(Fluorine-doped tin oxide)(11b) 박막을 증착시킨 투광층(11)과 상기 FTO(Fluorine-doped tin oxide)(11b) 박막에 백금을 증착시킨 촉매층(12)을 포함하는 상대 전극(10), 및 유리기판(21a)에 FTO(Fluorine-doped tin oxide)(21b) 박막을 증착시킨 투광층(21)을 포함하는 광 전극(20)을 포함하며; 상기 광 전극(20)은 이산화티타늄(23), 폴리에틸렌글리콜, 트리톤 엑스 100, 아세틸아세톤, 에탄올, 물, 질산 그리고 형광물질(25)로 혼합된 페이스트로 코팅되어 건조 및 열처리된 후 염료(26)가 흡착되고, 상기 상대 전극(10)과 광 전극(20) 사이에는 접착필름(30)을 위치시켜 열전사기로 밀봉하고 상대전극(10)에 뚫린 미세 구멍(10a)을 통해 레독스 쌍(보통 I-/I3 -)을 포함하는 전해액(30)으로 충진된다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a cross-sectional view schematically showing the structure of a dye-sensitized solar cell according to the present invention. Referring to FIG. 1, in the dye-sensitized solar cell according to the present invention, a light-transmitting
본 발명의 중요한 특징 중의 하나는 광 전극 제조시 형광물질의 도입에 있다. 이는 염료 감응형 태양전지의 변환 효율을 높이는데 주 역할을 하는 물질로 적은 양의 빛이 입사될 경우 발광 특성을 보여 어두운 곳에서도 태양전지의 또 다른 역할을 할 수 있다는 장점이 있다. 예를 들어 낮에는 태양전지가 작동되어 전기 에너지를 얻고 밤에는 형광물질이 빛을 내어 특정의 광고 효과도 기대 할 수 있다.One of the important features of the present invention lies in the introduction of fluorescent materials in the production of photoelectrodes. This is a material that plays a major role in improving the conversion efficiency of dye-sensitized solar cells. When a small amount of light is incident, it exhibits light emission characteristics, which may play another role of solar cells even in a dark place. For example, solar cells operate during the day to get electrical energy, and at night, fluorescent materials glow to give a certain advertising effect.
[실시 예][Example]
본 발명에 따른 염료 감응형 태양전지를 다음과 같이 제조 하였다. 이산화티타늄 2g과 폴리에틸렌글리코올(분자량 20,000) 0.4g, 트리톤 엑스 100 0.1g, 질산 용액 1㎖, 에탄올 2㎖, 아세틸아세톤 0.2g과 증류수 7㎖를 행성 교반기에 넣고 교반기를 작동시킨다. 교반 방법은 15분 동안 교반하고 5분 휴지하는 과정을 한 사이클로 하여 20 사이클 동안 작동시킨 후, 형광물질인 야그(YAG(Ce))를 첨가하여 광전극 페이스트 고형분을 만들며 이때 야그(YAG(Ce))의 양은 광전극 페이스트 고형분 100 중량%에 대해 10 중량%가 함유되도록 하여 다시 10 사이클의 교반 과정을 거쳐서 형광물질이 포함된 광전극 페이스트를 제조한다. FTO 처리된 투명유리기판 위에 페이스트를 코팅하고 1차적으로 80℃에서 30분 동안 건조 한 후 450℃로 승온하여 30분 동안 2차 열처리 과정을 거쳐 광 전극을 제조한다. 한편으로 투명 유리에 FTO가 코팅되어 있는 기판에 차후 전해액을 주입할 두 개의 미세 구멍을 만들어 놓고 백금졸을 박막 형태로 코팅하여 상대전극을 제조한다. 상대전극과 광전극 사이에 접착필름을 놓고 열을 가해 밀봉시킨 후 상대전극면의 미세구멍 사이로 액체 형태의 전해액을 주입한 다음 구멍을 밀봉하여 염료감응형 태양전지를 완성시킨다. 이때 에너지 변환 효율을 높이기 위해서 광전극 페이스트 고형분 100 중량%에 대해 형광물질인 야그(YAG(Ce))의 양은 0.01~20 중량%가 바람직하고, 더욱 바람직하게는 0.1~10 중량% 사이이다.The dye-sensitized solar cell according to the present invention was prepared as follows. 2 g of titanium dioxide, 0.4 g of polyethyleneglycol (molecular weight 20,000), 0.1 g of Triton x 100, 0.1 ml of nitric acid solution, 2 ml of ethanol, 0.2 g of acetylacetone and 7 ml of distilled water are placed in a planetary stirrer and operated. The stirring method was performed for 20 cycles with 15 minutes of stirring and 5 minutes of rest, followed by the addition of the fluorescent material yag (YAG (Ce)) to form a photoelectrode paste solid, which was yag (YAG (Ce)). The amount of c) is 10% by weight based on 100% by weight of the photoelectrode paste solid, and then 10 cycles of agitation is performed to prepare a photoelectrode paste including the fluorescent material. The paste is coated on the FTO-treated transparent glass substrate, firstly dried at 80 ° C. for 30 minutes, and then heated to 450 ° C. to prepare a photoelectrode through a second heat treatment process for 30 minutes. On the other hand, the counter electrode is manufactured by forming two fine holes for injecting electrolyte later on the substrate coated with FTO on the transparent glass and coating the platinum sol in a thin film form. The adhesive film is placed between the counter electrode and the photoelectrode, sealed by applying heat, and then a liquid electrolyte is injected between the micropores on the counter electrode surface, and then the hole is sealed to complete the dye-sensitized solar cell. In this case, the amount of the yag (YAG (Ce)) as a fluorescent substance is preferably 0.01 to 20% by weight, more preferably 0.1 to 10% by weight, in order to increase the energy conversion efficiency.
[비교예][Comparative Example]
광 전극 제조시 첨가되는 형광물질인 야그(YAG(Ce))를 제외하고는 실시예와 동일하게 제조한 시료를 비교예 1로하고 광 전극 제조시 2차 열처리 후 UV 조사를 한 시료를 비교예 2로 하여 본 발명의 실시예와 비교하였다.Except for Yag (YAG (Ce)), which is a fluorescent material added during photoelectrode production, Comparative Example 1 was used as a sample prepared in the same manner as in Example, and a sample subjected to UV irradiation after secondary heat treatment during photoelectrode preparation was compared. 2 was compared with the Example of this invention.
표 1은 종래의 알려진 방법대로 제조한 광 전극을 탑재한 시료와 본 발명에 의해서 제조된 시료의 전기적 특성을 비교한 것이다. 본 발명에 의해서 제조된 형광물질을 함유한 광 전극을 탑재한 시료에서 우수한 전기적 특성들이 나타났다. 종래의 기술에 의하면 광전극 제조시에 열처리 후 자외선(UV)를 조사하면 에너지 변환 효율이 상승된다고 보고된 바 있어 이를 비교하였다.Table 1 compares the electrical properties of a sample prepared by the present invention with a sample equipped with a photoelectrode prepared according to a known method. Excellent electrical properties appeared in a sample equipped with a photoelectrode containing a fluorescent material produced by the present invention. According to the prior art, the irradiation of ultraviolet (UV) light after heat treatment at the time of manufacturing the photoelectrode has been reported to increase the energy conversion efficiency, which has been compared.
*표 2는 본 발명에 의해서 제조된 시료의 형광물질 첨가 중량 비를 비교하여 첨가된 양에 따른 전기적 특성을 비교한 것이다.Table 2 compares the electrical properties according to the added amount by comparing the weight ratio of the fluorescent material added to the sample prepared by the present invention.
표 1. 개방전압과 에너지 변환 효율Table 1. Open Voltage and Energy Conversion Efficiency
표 2. 형광물질 YAG(Ce) 함유량에 따른 변환 효율Table 2. Conversion Efficiency with Fluorescent Material YAG (Ce) Content
이상과 같이 본 발명은 비록 한정된 실시 예와 도면에 의해 설명되었으나, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정되어 해석되어서는 아니 되며, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서, 본 명세서에 기재된 실시 예와 도면에 도시된 구성은 본 발명의 일실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다. As described above, although the present invention has been described with reference to limited embodiments and drawings, the terms or words used in the present specification and claims are not to be construed as being limited to ordinary or dictionary meanings, and are consistent with the technical spirit of the present invention. It must be interpreted as meaning and concept. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one embodiment of the present invention and do not represent all of the technical idea of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be variations and examples.
도 1은 본 발명에 의한 염료 감응형 태양전지의 구조를 개략적으로 나타낸 단면도.1 is a cross-sectional view schematically showing the structure of a dye-sensitized solar cell according to the present invention.
도 2는 본 발명에 의한 염료 감응형 태양전지의 에너지 변환 효율을 나타낸 그래프.2 is a graph showing the energy conversion efficiency of the dye-sensitized solar cell according to the present invention.
도 3은 본 발명에 의한 염료 감응형 태양전지에서 형광물질의 첨가량에 따른 전류-전압 곡선.3 is a current-voltage curve according to the amount of the fluorescent material added in the dye-sensitized solar cell according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
10 ... 상대 전극10 ... counter electrode
20 ... 광 전극20 ... photoelectrode
25 ... 형광물질25 ... fluorescent material
30 ... 접착필름30 ... Adhesive Film
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| PCT/KR2008/000216 WO2008133393A1 (en) | 2007-04-27 | 2008-01-14 | Dye-sensitized solar cell containing fluorescent material and method for manufacturing thereof |
| US12/029,682 US20080264485A1 (en) | 2007-04-27 | 2008-02-12 | Dye-sensitized solar cell containing fluorescent material and method of manufacturing the same |
| JP2008032191A JP4884409B2 (en) | 2007-04-27 | 2008-02-13 | Fluorescent substance-containing dye-sensitized solar cell and method for producing the same |
| EP08152944A EP1986202B1 (en) | 2007-04-27 | 2008-03-18 | Dye-sensitized solar cell containing fluorescent material and method of manufacturing the same |
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| EP1986202A2 (en) * | 2007-04-27 | 2008-10-29 | Industry Foundation of Chonnam National University | Dye-sensitized solar cell containing fluorescent material and method of manufacturing the same |
| KR100998685B1 (en) | 2007-12-18 | 2010-12-07 | 아크로솔 주식회사 | Compostion for photoanode of solar cell |
| US9251962B2 (en) | 2011-11-30 | 2016-02-02 | Hyundai Motor Company | Dye-sensitized solar cell module using thin glass substrate and method of manufacturing the same |
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| KR20050000876A (en) * | 2003-06-25 | 2005-01-06 | 한국전자통신연구원 | Dye-sensitized solar cells including liquid type imidazolium electrolyte |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1986202A2 (en) * | 2007-04-27 | 2008-10-29 | Industry Foundation of Chonnam National University | Dye-sensitized solar cell containing fluorescent material and method of manufacturing the same |
| EP1986202A3 (en) * | 2007-04-27 | 2011-09-07 | Industry Foundation of Chonnam National University | Dye-sensitized solar cell containing fluorescent material and method of manufacturing the same |
| KR100998685B1 (en) | 2007-12-18 | 2010-12-07 | 아크로솔 주식회사 | Compostion for photoanode of solar cell |
| US9251962B2 (en) | 2011-11-30 | 2016-02-02 | Hyundai Motor Company | Dye-sensitized solar cell module using thin glass substrate and method of manufacturing the same |
| US9570241B2 (en) | 2011-11-30 | 2017-02-14 | Hyundai Motor Company | Dye-sensitized solar cell module using thin glass substrate and method of manufacturing the same |
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