紫外处理低温烧结柔性TiO_2薄膜电极的性能研究  

ELECTRODES TREATED BY UV AFTER LOW TEMPERATURE SINTERING

作　　者：张凤[1] 陶杰[1] 董祥[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《太阳能学报》2009年第2期145-149,共5页Acta Energiae Solaris Sinica

基　　金：江苏省自然科学基金(BK2004129);江苏省高校科研成果产业推进工程项目(JHB06-03)

摘　　要：采用HNO_3水溶液分散P25制得了TiO_2/NO_3^-粉末,并将TiO_2/NO_3^-粉末和聚乙二醇(PEG)水溶液混合配制成室温涂膜浆体,紫外处理低温烧结涂敷的TiO_2薄膜,以获得柔性染料敏化太阳电池的TiO_2薄膜电极。用傅立叶变换红外吸收光谱仪(FTIR)、紫外可见光仪(UVSP)、场发射扫描电镜(FESEM)对TiO_2薄膜电极进行表征,同时,测试了电极组装电池的光电性能。结果表明:TiO_2薄膜电极是一种多孔结构,其经过紫外处理后有机物完全去除,吸光度增大;TiO_2薄膜电极经过紫外处理后组装的柔性染料敏化太阳电池,其短路电流和开路电压都有所提高,其光电转换效率提高到1.28%。TiO2 thin film electrodes of flexible dye sensitized solar cell were successfully prepared by UV treatment after low-temperature sintering. The pastes were consisted of TiO2 particles chemically dispersed by aqueous nitric acid and polyethylene glycol （PEG） solution. The TiO2 thin film electrodes were characterized by Fourier transform infrared spec- troscope （FHR）, uhraviolet visible spectrometer （UVSP）, field emission scanning electron microscope （FESEM）, re- spectively. Moreover, the photoelectric performance of the cell was measured. It was found that the structure of TiOz thin film electrodes was porous. After the UV treatment, the photon absorbance of the electrode was increased as the organic compound of TiO2 thin film electrode was removed completely. Furthermore, the short circuit current and open circuit voltage of flexible DSC were improved and its photovoltaic conversion efficiency reached up to 1.28 %.

关 键 词：柔性染料敏化太阳电池 TiO2薄膜电极 低温烧结 紫外处理 

分 类 号：TM914.42[电气工程—电力电子与电力传动]