• Title/Summary/Keyword: DSSC SOLAR CELL

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Developing Sealing Material of a Dye-Sensitized Solar Cell for Outdoor Power (실외 발전을 위한 염료감응형 태양전지의 봉지재 개발)

  • Ki, Hyun-Chul;Hong, Kyung-Jin
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.29 no.12
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    • pp.819-823
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    • 2016
  • DSSC (dye-sensitized solar cell) is expected to be one of the next-generation photovoltaics because of its environment-friendly and low-cost properties. However, commercialization of DSSC is difficult because of the electrolyte leakage. We propose thermal curable base on silicon resin and apply a unit cell and large area ($200{\times}200mm$) dye-sensitized solar cell. The resin aimed at sealing of DSSC and gives a promising resolution for sealing of practical DSSC. In result, the photoelectric conversion efficiency of the unit cell and the module was 6.63% and 5.49%, respectively. In the durability test result, the photoelectric conversion efficiency of the module during 500, 1,000, 1,500 and 2,000 hours was 0.73%, 0.73%, 1.82% and 2.36% respectively. It was confirmed that the photoelectric conversion efficiency characteristics are constant. We have developed encapsulation material of thermal curing method excellent in chemical resistance. A sealing material was applied to the dye-sensitized solar cell and it solved the problem of durability the dye-sensitized solar cell. Sealing material may be applied to verify the possibility of practical application of the dye-sensitized solar cell.

A study on the Oxide Semiconductors electrodes for DSSC (염료감응형 태양전지를 위한 산화물반도체 전극에 관한 연구)

  • Hwang, Hyun Suk;Kim, Hyung Jin
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.7
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    • pp.4925-4929
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    • 2015
  • Dye-sensitized solar cell(DSSC) has aroused intense interest owing to its competitive price and stabilized properties than Si based solar cells. Recently, many studies have been reported on the DSSC, especially development of a transparent conductive oxide-less dye-sensitized solar cell(TCO-less DSSC). In this paper, a thick and porous Ti electrode for low cost DSSC developed its properties. To estimate the Ti electrode, the films are tested FESEM and J-V evaluation method. An increase in Ti thickness from 50 nm to 200 nm mainly affects the fill factor without noticeably changing the photocurrent density. It was confirmed that optimal DSSC efficiency was obtained at Ti 150 nm.

An Overview Of Nanonet Based Dye-Sensitized Solar Cell (DSSC) In Solar Cloth

  • Othman, Mohd Azlishah;Ahmad, Badrul Hisham;Amat, Noor Faridah
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.13 no.6
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    • pp.635-646
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    • 2013
  • This technical paper contains the information of the Dye-Sensitized Solar Cells (DSSC) working principal where diffusion mechanism acts as electron transport to absorb the sunlight energy to generate the electrical energy. DSSC is photo electrochemical cell that implements the application of photosynthesis process. The performance of electron transport in DSSC has been reviewed in order to enhance the performance and efficiency of electron transport. The improvement of the electron transport also discussed in this paper.

Dye-sensitized Solar Cells Utilizing Core/Shell Structure Nanoparticle Fabrication and Deposition Process (코어/쉘 구조의 나노입자 제조 및 증착 공정을 활용한 염료감응 태양전지)

  • Jeong, Hongin;Yoo, Jhongryul;Park, Sungho
    • Korean Chemical Engineering Research
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    • v.57 no.1
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    • pp.111-117
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    • 2019
  • This study proposed the fabrication and deposition of high purity crystalline $core-TiO_2/shell-Al_2O_3$ nanoparticles. Morphological properties of $core-TiO_2$ and coated $shell-Al_2O_3$ were confirmed by transmission electron microscope (TEM) and transmission electron microscope - energy dispersive spectroscopy (TEM-EDS). The electrical properties of the prepared $core-TiO_2/shell-Al_2O_3$ nanoparticles were evaluated by applying them to a working electrode of a Dye-Sensitized Solar Cell (DSSC). The particle size, growth rate and the main crystal structure of $core-TiO_2$ were analyzed through dynamic light scattering system (DLS), scanning electron microscope (SEM) and X-ray diffraction (XRD). The $core-TiO_2$, which has a particle size of 17.1 nm, a thin film thickness of $20.1{\mu}m$ and a main crystal structure of anatase, shows higher electrical efficiency than the conventional paste-based dye-sensitized solar cell (DSSC). In addition, the energy conversion efficiency (6.28%) of the dye-sensitized solar cell (DSSC) using the $core-TiO_2/shell-Al_2O_3$ nanoparticles selectively controlled to the working electrode is 26.1% higher than the energy conversion efficiency (4.99%) of the dye-sensitized solar cell (DSSC) using the conventional paste method.

High Efficiency Dye-Sensitized Solar Cells: From Glass to Plastic Substrate

  • Go, Min-Jae
    • Proceedings of the Korean Vacuum Society Conference
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    • 2010.08a
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    • pp.294-294
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    • 2010
  • Over the last decade, dye-sensitized solar cell (DSSC) has attracted much attention due to the high solar-to-electricity conversion efficiency up to 10% as well as low cost compared with p-n junction photovoltaic devices. DSSC is composed of mesoporous TiO2 nanoparticle electrodes coated with photo-sensitized dye, the redox electrolyte and the metal counter electrode. The performances of DSSC are dependent on constituent materials and interface as well as device structure. Replacing the heavy glass substrate with plastic materials is crucial to enlarge DSSC applications for the competition with inorganic based thin film photovoltaic devices. One of the biggest problems with plastic substrates is their low-temperature tolerance, which makes sintering of the photoelectrode films impossible. Therefore, the most important step toward the low-temperature DSSC fabrication is how to enhance interparticle connection at the temperature lower than $150^{\circ}C$. In this talk, the key issues for high efficiency plastic solar cells will be discussed, and several strategies for the improvement of interconnection of nanoparticles and bendability will also be proposed.

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Improvement of Efficiency about $TiO_2$ Layer Multi-dividing Effect in Dye-sensitized Solar Cell (염료감응형 태양전지의 $TiO_2$ Layer 다분할 효과에 따른 효율 향상 연구)

  • Son, Min-Kyu;Seo, Hyun-Woong;Lee, Kyoung-Jun;Hong, Ji-Tae;Kim, Hee-Je
    • 한국신재생에너지학회:학술대회논문집
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    • 2008.05a
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    • pp.425-427
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    • 2008
  • Active area of dye-sensitized solar cell (DSSC) has an effect on the efficiency of DSSC. As the active area increases, the efficiency goes down in a general way. This is caused by the increase of internal resistance in DSSC. The internal resistances are related to various resistant elements. The charge transfer processes at Pt counter electrode and the sheet resistance of TCO are two of these resistant elements. In this study, we try to divide the active area into several small sections in a large sized cell to reduce these two internal resistant elements. As a result, we find out that the fill factor is increased and then the conversion efficiency is improved as the number of dividing active area into several small sections is increased.

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Enhancement of electro-optic performance in dyesensitized solar sell using homeotropically aligned liquid crystal molecular

  • Kim, Hyeon-Kyung;Jin, Sung-Ho;Lee, Gi-Dong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.1130-1132
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    • 2009
  • We propose a novel way for enhancement of efficiency on a quasi solid-state dye-sensitized solar cell (DSSC). It contained gel type electrolyte mixing the liquid crystal (LC) of specific concentration and applied voltage for alignment of the LC. Aligned LC is supported charge transfer inside electrolyte and efficiency is increased in DSSC. We made a quasi solid-state DSSC which applied DC voltage or not and have measured the power conversion efficiency (PCE) and the fill factor. From measurement, we obtain high performances in case of cell applied voltage compare to reference cell.

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Photovoltaic Characteristics of $TiO_2$ Paste for Dye-Sensitized Solar Cell with Binder, Binder-Free and Mixed Binder (염료감응 태양전지용 $TiO_2$ 페이스트의 바인더 유무와 혼합에 따른 광전변환 특성)

  • Baek, Hyoung-Youl;Li, Hu;Park, Kyung-Hee;Gu, Hal-Bon
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2007.06a
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    • pp.336-337
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    • 2007
  • The energy conversion characteristics of $TiO_2$ paste of dye-sensitized solar cell (DSSC) was investigated. In the case of DSSC without a binder, the current density increased due to the development of porosity. As for DSSC with a binder, the fill factor increased due to the development of network among the particles. The energy conversion efficiency of 7.2% was obtained due to the porosity and the network as for DSSC with the mixed binder (Vol. 50:50).

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Comparison assessment of semi-transparent solar cell for BIPV windows (반투과형 태양전지를 이용한 창호형 BIPV 건물의 환경성능 분석)

  • Chung, Min Hee
    • Land and Housing Review
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    • v.11 no.1
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    • pp.87-94
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    • 2020
  • To implement the planning of zero-energy buildings, their energy performance must be improved, and renewable energy applications must also be included. To accelerate the use of renewable energies in such buildings, BIPVs should be actively used in windows and on roofs. Window-type BIPVs are being developed in various forms depending on the size, composition, area ratio of the window, specification of glass, and so on. To analyze the applicability of various solar cells as window-type BIPVs, in this study, we evaluated their applicability, at the current development level, by analyzing the indoor illuminance, heat gain and heat loss; the cooling, heating, and lighting energy levels; and the generation performance of the various solar cells. To enhance the future applicability of window type BIPV, we analyze the overall energy performance of the building, according to changes in visible light transmittance and generation efficiency. The main research results are as follows. The area ratios above the standard illuminance, based on the window type and according to the VLT, were in order of low-e glazing, a-Si window, DSSC window, and c-Si window. The heat gain of the semi-transparent solar cell winodw was remarkably low. The energy consumption of buildings was highest in the order of c-Si window, DSSC window, a-Si window, and clear low-e window. However, in the case of including the power generation performance of the solar cell, the energy consumption was found to be high in order of DSSC window, c-Si window, a-Si window, and clear low-e window. In the future, if a window-type BIPV is developed, we believe that improvement in power generation performance and improvement in visible light transmittance will be needed.

An Improvemcent of the Characteristics of DSSC by Each Layers - I (- Upper Electrode) (각 층에 따른 염료감응형 태양전지의 특성 개선 - I (-상부전극을 중심으로))

  • Mah, Jae-Pyung;Park, Chi-Sun
    • Journal of the Semiconductor & Display Technology
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    • v.10 no.2
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    • pp.57-63
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    • 2011
  • Photovoltaic effect is confirmed in DSSC fabricated under the common conditions. In upper electrodes, validity of ZnO as new TCO material was investigated and an improvement of characteristics in DSSC was tried by control of process conditions at semiconductive powder layer. ZnO thin film showed very high resistivity, therefore efficiency of solar cell was lower than that of conventional ITO-related material. DSSC characteristics was able to improve by thin blocking layer doposited between the TCO and semiconductor layer.