TiO_2纳米棒和CdSe纳米棒复合膜与聚3-甲基噻吩杂化太阳能电池研究  

Poly(3-methylthiophene) Hybrid Solar Cell with TiO_2 Nanorod and CdSe Nanorod Composite Film

作　　者：郝彦忠[1,2] 马洁霞[2] 孙宝[1] 李英品[1] 任聚杰[1] 

机构地区：[1]河北科技大学理学院,石家庄050018 [2]河北科技大学化学与制药工程学院,石家庄050018

出　　处：《化学学报》2010年第1期33-40,共8页Acta Chimica Sinica

基　　金：国家自然科学基金(Nos.20573031;20203008);河北省教育厅指导性(No.Z2005203)资助项目

摘　　要：采用水热法制备了TiO2和CdSe两种纳米棒材料,将两种纳米材料制备成TiO2/CdSe复合纳米棒膜电极,并在复合膜上电化学聚合生成聚3-甲基噻吩poly(3-methylthiophene)(PMeT),研究了其光电化学性能.实验表明,当TiO2与CdSe的物质的量复合比为2:1,PMeT的聚合时间为40s,在电极电势为-0.2V下ITO/TiO2/CdSe/PMeT电极光电转换效率(IPCE)达到56%,对比ITO/TiO2/CdSe复合膜电极在长波方向的光电转换效率明显提高,光吸收截止波长发生了明显的红移.同时以ITO/TiO2/CdSe/PMeT组装了简易的杂化太阳电池,初步研究了光电池性能,光电池总效率为0.08%,Voc=0.4V,jsc=0.61mA/cm2,ff=0.33.TiO2 and CdSe nanorods were prepared by a hydrothermal method.The photoelectrochemical properties of TiO2/CdSe composite film and TiO2/CdSe/PMeT film were investigated.The experiment results showed that the incident photon to current conversion efficiency （IPCE） of TiO2/CdSe/PMeT was obviously increased in comparison to that of TiO2/CdSe composite film.The experiment results showed that the p-n heterojunction existed in the TiO2/CdSe/PMeT nanostructure film,which favored the separation of electron-hole pairs generated by photoexcitation.The IPCE value of TiO2/CdSe/PMeT film was 56% at-0.2 V,and the incident light wavelength of 370 nm.The hybrid solar cell was fabricated with TiO2/CdSe nanostructure composite film and poly（3-methylthiophene） （PMeT）.The conversion efficiency of the hybrid solar cell was 0.08%,short current 0.61 mA/cm 2,open voltage 0.4 V,fill factor 0.33,under irradiation of 100 mW/cm 2 white light from a Xe lamp.

关 键 词：TiO2纳米棒 CdSe纳米棒 聚3-甲基噻吩 杂化太阳电池 

分 类 号：TM914.4[电气工程—电力电子与电力传动]