FeS_2/TiO_2复合膜的制备及光伏特性的研究

PREPARATION AND PHOTOVOLTAICS CHARATERISTICS STUDY OF A FeS 2/TiO 2 COMPLEX FILM

用溶胶┐凝胶法先在ＩＴＯ膜上制备纯锐钛矿结构的ＴｉＯ２膜（８０ｎｍ），然后在ＴｉＯ２膜上射频溅射黄铁矿结构的ＦｅＳ２膜（２０ｎｍ），得到ＦｅＳ２／ＴｉＯ２复合膜经在硫气氛中退火处理，在电解液（Ｉ－／Ｉ）接触的情况下，该复合膜获得１７８ｍＶ的开路光电压（ｐＨ＝１２）和４７μＡ的短路光电流（ｐＨ＝１）。电解液的ｐＨ值越高，输出光电压越高。

A TiO 2(antase)thin film(80nm)was firstly deposited on ITO film by sol gel process,then a FeS 2 thin film prepared by RF magnetron sputtering technology was deposited on the TiO 2 film.This FeS 2/TiO 2 film complex annealed in a sulfur atmosphere has got the PV effect of 178mV of open circuit voltage(pH=12) and 47μA of short circuit current (pH=1).The photo voltage increases and photo current decreases with increasing pH value.