KR20150068089A - Dye-sensitized solar cell - Google Patents

Dye-sensitized solar cell Download PDF

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Publication number
KR20150068089A
KR20150068089A KR1020130153882A KR20130153882A KR20150068089A KR 20150068089 A KR20150068089 A KR 20150068089A KR 1020130153882 A KR1020130153882 A KR 1020130153882A KR 20130153882 A KR20130153882 A KR 20130153882A KR 20150068089 A KR20150068089 A KR 20150068089A
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KR
South Korea
Prior art keywords
transparent substrate
unit
dye
solar cell
grid electrodes
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KR1020130153882A
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Korean (ko)
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KR101890687B1 (en
Inventor
황재권
김대운
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주식회사 오리온
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Priority to KR1020130153882A priority Critical patent/KR101890687B1/en
Publication of KR20150068089A publication Critical patent/KR20150068089A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/20Light-sensitive devices
    • H01G9/2022Light-sensitive devices characterized by he counter electrode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/20Light-sensitive devices
    • H01G9/2068Panels or arrays of photoelectrochemical cells, e.g. photovoltaic modules based on photoelectrochemical cells
    • H01G9/2077Sealing arrangements, e.g. to prevent the leakage of the electrolyte
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/20Light-sensitive devices
    • H01G9/2068Panels or arrays of photoelectrochemical cells, e.g. photovoltaic modules based on photoelectrochemical cells
    • H01G9/2081Serial interconnection of cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/02Details
    • H01L31/0224Electrodes
    • H01L31/022466Electrodes made of transparent conductive layers, e.g. TCO, ITO layers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/042PV modules or arrays of single PV cells
    • H01L31/048Encapsulation of modules
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/542Dye sensitized solar cells

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  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Photovoltaic Devices (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Hybrid Cells (AREA)

Abstract

By providing a grid electrode in combination with a plurality of unit grid electrodes and providing an encapsulant around each unit grid electrode, it is possible to reduce the possibility of the electrolyte penetrating the grid electrode and increase the sealing material area, The dye-sensitized solar cell according to the present invention comprises an upper transparent substrate and a lower transparent substrate bonded together via an encapsulating material, Each of the transparent substrate and the lower transparent substrate is divided into a plurality of unit cell regions, a light absorbing layer is provided in each unit cell region of the upper transparent substrate, a counter electrode is provided in each unit cell region of the lower transparent substrate, A grid electrode is provided in each cell region of the upper transparent substrate and the lower transparent substrate, The grid electrode is composed of a plurality of unit grid electrodes, and each of the unit grid electrodes is spatially separated by an encapsulating material.

Description

Dye-sensitized solar cell [0002]

The present invention relates to a dye-sensitized solar cell, and more particularly, to a dye-sensitized solar cell, in which a grid electrode is composed of a plurality of unit grid electrodes and an encapsulant is provided around each unit grid electrode, And more particularly to a dye-sensitized solar cell capable of improving the cohesion strength between the upper transparent substrate and the lower transparent substrate by reducing the possibility and increasing the sealing area.

A dye-sensitized solar cell is a device that applies the principle of photosynthesis of a plant. It is a case where a dye having a function of absorbing light energy from a chloroplast is combined with a polymer and applied to a solar cell. The dye-sensitized solar cell is based on a dye polymer for solar absorption, a semiconductor oxide serving as an n-type semiconductor, an electrolyte acting as a p-type semiconductor, a counter electrode for a catalyst, and a transparent electrode for solar transmission.

The dye-sensitized solar cell basically has a structure in which two transparent substrates are coalesced (Korean Unexamined Patent Publication No. 1437578). A counter electrode for electrolyte reduction is provided on each of the transparent substrates, and an electrolyte is filled between the two transparent substrates.

In the case of the dye-sensitized solar cell of the tandem type, as shown in FIG. 1, a plurality of unit cell regions are provided, a counter electrode 110 and an electrolyte (not shown) are provided in each unit cell, A grid electrode 120 for electrically connecting the cells is additionally provided. Each of the counter electrode 110 and the grid electrode 120 is protected by the sealing material 130 and two transparent substrates are bonded together through the sealing material.

In the conventional tandem dye-sensitized solar cell, if the state of the transparent substrate is locally defective, the electrolyte inside each unit cell flows to the area where the grid electrode is provided, and the grid electrode is corroded This problem is caused by the adhesion strength of the transparent substrate.

Korean Laid-Open Patent Publication No. 2012-136578

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems as described above, and it is an object of the present invention to provide a plasma display panel in which grid electrodes are composed of a plurality of unit grid electrodes and sealing material is provided around each unit grid electrode, And to improve the adhesion strength between the upper transparent substrate and the lower transparent substrate by increasing the area of the encapsulation material and the dye-sensitized solar cell.

According to an aspect of the present invention, there is provided a dye-sensitized solar cell including an upper transparent substrate and a lower transparent substrate, the upper transparent substrate and the lower transparent substrate being bonded together via an encapsulant, And a counter electrode is provided in each unit cell region of the lower transparent substrate, and each of the upper transparent substrate and the lower transparent substrate is divided into a cell region, A grid electrode is provided in the cell region, a grid electrode provided in each cell region is composed of a plurality of unit grid electrodes, and each unit grid electrode is spatially separated by an encapsulating material.

An encapsulant is provided around each of the unit grid electrodes.

The dye-sensitized solar cell according to the present invention has the following effects.

The grid electrodes are subdivided into a plurality of unit grid electrodes and each unit grid electrode is surrounded by an encapsulating material, thereby minimizing the deterioration of electrical characteristics of the grid electrode due to electrolyte penetration. At the same time, the adhesion strength of the solar cell can be improved by increasing the contact area of the sealing material.

1 is a plan view of a conventional dye-sensitized solar cell.
2 is a perspective view of a dye-sensitized solar cell according to an embodiment of the present invention.
3 is a perspective view of a dye-sensitized solar cell according to an embodiment of the present invention.

The present invention is characterized in that the grid electrodes provided in each unit cell are divided into a plurality of unit grid electrodes and each unit grid electrode is protected by an encapsulating material so that even if electrolyte charged in each unit cell leaks, A technique capable of ensuring the electrical characteristics of the grid electrode is proposed so as to affect only some of the unit grid electrodes. In addition, an encapsulation material is provided around each unit grid electrode, thereby increasing the encapsulation material area, and consequently, the cohesion strength between the upper transparent substrate and the lower transparent substrate is increased.

Hereinafter, a dye-sensitized solar cell according to an embodiment of the present invention will be described in detail with reference to the drawings.

Referring to FIGS. 2 and 3, the dye-sensitized solar cell according to an embodiment of the present invention includes an upper transparent substrate 210 and a lower transparent substrate 220, They are joined together through ashes.

The upper transparent substrate 210 and the lower transparent substrate 220 are divided into a plurality of unit cell regions A and a counter electrode 221 and a light absorbing layer 211 are independently provided in each unit cell region. The unit cell region of the lower transparent substrate 220 is provided with a counter electrode 221 that serves to reduce the electrolyte. The unit cell region of the upper transparent substrate 210 is provided with a photoabsorption layer (Not shown).

In addition, grid electrodes 212 and 222 are provided on the upper transparent substrate 210 and the lower transparent substrate 220, respectively. The grid electrodes 212 and 222 serve to electrically connect the unit cells and the light absorbing layer 211 or the light absorbing layer 211 is formed in a space between unit cell regions of the upper transparent substrate 210 and the lower transparent substrate 220, And is spaced apart from the counter electrode 221. The space between the upper transparent substrate 210 and the lower transparent substrate 220 is filled with an electrolyte that functions to reduce dye oxidized by solar absorption.

The grid electrodes 212 and 222 provided in the respective unit cell regions are formed of a plurality of unit grid electrodes 212a and 222a and each unit grid electrode 212a and 222a is formed of a sealing material 230, respectively. In other words, a sealing material 230 is provided around the unit grid electrodes 212a and 222a, and each unit grid electrode 212a and 222a is provided in an independent space by the sealing material 230 . Accordingly, even if the electrolyte in the unit cell penetrates into the neighboring unit grid electrode regions, only a part of the unit grid electrodes is affected, and the remaining unit grid electrodes can exhibit normal electrical characteristics.

210: upper transparent substrate 211: light absorbing layer
212, 222: grid electrodes 212a, 222a: unit grid electrodes
220: lower transparent substrate 221: counter electrode
230: sealing material

Claims (2)

And an upper transparent substrate and a lower transparent substrate bonded together via an encapsulating material,
Each of the upper transparent substrate and the lower transparent substrate is divided into a plurality of unit cell regions, a light absorption layer is provided in each unit cell region of the upper transparent substrate, a counter electrode is provided in each unit cell region of the lower transparent substrate, ,
A grid electrode is provided in each cell region of the upper transparent substrate and the lower transparent substrate,
Wherein the grid electrodes provided in the respective cell regions comprise a plurality of unit grid electrodes,
Wherein each of the unit grid electrodes is spatially separated by an encapsulating material.
The dye-sensitized solar cell according to claim 1, wherein an encapsulant is provided around each of the unit grid electrodes.
KR1020130153882A 2013-12-11 2013-12-11 Dye-sensitized solar cell KR101890687B1 (en)

Priority Applications (1)

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KR1020130153882A KR101890687B1 (en) 2013-12-11 2013-12-11 Dye-sensitized solar cell

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Application Number Priority Date Filing Date Title
KR1020130153882A KR101890687B1 (en) 2013-12-11 2013-12-11 Dye-sensitized solar cell

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KR20150068089A true KR20150068089A (en) 2015-06-19
KR101890687B1 KR101890687B1 (en) 2018-08-23

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220068752A (en) 2020-11-19 2022-05-26 (주)오리온엔이에스 Dye sensitized solar cell with combined serial-parallel connections

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100111592A (en) * 2009-04-07 2010-10-15 주식회사 이건창호 Dye sensitized solar cell
KR20100115046A (en) * 2009-04-17 2010-10-27 주식회사 이건창호 Dye-sensitized solar cell with solid electrolyte using nanofiber
KR20110139972A (en) * 2010-06-24 2011-12-30 현대하이스코 주식회사 Dye-sensitized solar cell having grid protect layer
KR20120136578A (en) 2011-06-09 2012-12-20 엘지디스플레이 주식회사 Dye-sensitized solar cells and manufacturing method for thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100111592A (en) * 2009-04-07 2010-10-15 주식회사 이건창호 Dye sensitized solar cell
KR20100115046A (en) * 2009-04-17 2010-10-27 주식회사 이건창호 Dye-sensitized solar cell with solid electrolyte using nanofiber
KR20110139972A (en) * 2010-06-24 2011-12-30 현대하이스코 주식회사 Dye-sensitized solar cell having grid protect layer
KR20120136578A (en) 2011-06-09 2012-12-20 엘지디스플레이 주식회사 Dye-sensitized solar cells and manufacturing method for thereof

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