Preparation and Photovoltaic Properties of Polypyrrole for Solid State Dye-Sensitized Solar Cell Application

• Main Authors: Shin-Shiao Yang, 楊欣學
• Other Authors: Ta-Hua Hsieh
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/25147468635610096085

碩士 === 國立高雄應用科技大學 === 化學工程與材料工程系 === 97 === The conducting DBSA doped-polypyrrole (DBSA-PPy) composites were synthesized by using emulsion polymerization, where pyrrole and DBSA act as monomer and emulsifier/dopant, respectively. The solid-state TiO2/Dye/DBSA-PPy solar cells were fabricated by the sandwich technique, where the available commercially porous nano-TiO2, N3 derivative and the DBSA-PPy composites act as photoelectrode, dye and the hole transport material, respectively. When Zn(DBS)2 was added into DBSA-PPy composites, the DBSA-PPy backbone showed an unfold conformation, a red shift phenomenon in the UV-Vis spectra was observed. As compared with DBSA-PPy composites, the hole mobility in DBSA-PPy-Zn(DBS)2 composites is significantly increased from 0.6385 to 0.8821 cm2/Vs, leading to the increase in 　. As for I-V characteristics measurements, values of Voc and Jsc of the solid-state TiO2/Dye/DBSA-PPy-Zn(DBS)2-tBP-LiI solar cells are markedly improved, which is attributed to the reduction of the recombination rate of carrier and transition resistance of electron in TiO2. At 1wt% tBP and 0.1M LiI, the of TiO2/Dye/DBSA-PPy-Zn(DBS)2-tBP-LiI solar cell is about 0.3434 %.