| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 분자전자 부문위원회 |
| 제목 | Photovoltaic Properties of Quasi-Solid State Dye-Sensitized Solar Cells using Indiumphthalocyanine as Additive |
| 초록 | Dye-sensitized solar cell (DSSC) comprises a working electrode consisting of a nanoporous TiO2 films modified with a dye-sensitizer, a platinum counter electrode, and an electrolyte in between two electrodes. Enormous efforts have been concentrated on to improve the power conversion efficiency through the optimization of DSSC device structures and the modification of material chemical structures. These efforts include employing a quasi-solid state type electrolyte to minimize the loss and to obtain relatively high power conversion efficiency. We have purposed the idea of an introduction of a phthalocyanine into the electrolyte as an additive to increase the power conversion efficiency in DSSC. We have fabricated quasi-solid state type DSSC device using PEG as polymer matrix and indiumphthalocyanine as additive. A thin mesoporous nanocrystalline TiO2 film is deposited on the negative electrode. A dye-sensitizer is adsorbed and covalently bound on TiO2 nanoparticles. The counter electrode consists of FTO with thermally deposited Pt. The space between the dyes adsorbed TiO2 surface and counter electrode is filled with an electrolyte that typically contains the I3-/I- redox couple. The structure of the DSSC device and the chemical structures of indiumphthalocyanines were shown in Fig.1. Fig.1. (a) : The structure of the DSSC device; (b): The chemical structures of induimphthalocyanines. The measurements were made on open cell, and the electrode size was 0.25 cm2. The open-circuit voltage (Voc) of the DSSC devices were 0.60~0.66 V, the short-circuit current density (Jsc) were 11~22 mA/cm2, and the overall energy conversion efficiency (η) achieved 3.5~6.7%. And then, fill factor (FF) was around 0.5. |
| 저자 | 이현정, 박성해, 여윤선, 강효진, 신원석, 진성호, 이진국, 김미라 |
| 소속 | 부산대 |
| 키워드 | Quasi-Solid State Electrolyte; Dye-Sensitized Solar Cell; Indiumphthalocyanine |
