Title :
Influence of TiO2 thin film morphology on the performance of polyaniline/TiO2 solar cells
Author :
Shen, Liang ; Guo, Wenbin ; Xue, Hailin ; Liu, Ziran ; Zhou, Jingran ; Liu, Caixia ; Chen, Weiyou
Author_Institution :
State Key Lab. on Integrated Optoelectron., Jilin Univ., Jilin
Abstract :
We have used sol-gel spin-coating method to prepare nano-crystalline titanium dioxide (TiO2) films. An assembly of indium-tin oxide(ITO)/nano-crystalline TiO2/polyaniline/Al has been made in a sandwich structure. The junction thus obtained shows rectifying behavior. Their I-V characteristics indicate that a p-n junction at nano-crystalline TiO2-polyaniline interface has been created .In our experiment, we change the ratio of titanium alkoxide and ethanol in process of preparing TiO2 sol, when the ratio of titanium alkoxide and ethanol at 3:7, the largest open voltage(Voc) of 0.397 V and short current density(Jsc) of 65.9 muA/cm2 are obtained under simulated solar radiation (50 mW/cm2).
Keywords :
aluminium; indium compounds; p-n junctions; sol-gel processing; solar cells; spin coating; thin films; titanium compounds; Al; I-V characteristics; ITO; TiO2; TiO2 thin film morphology; current density; ethanol; nanocrystalline titanium dioxide films; p-n junction; polyaniline/TiO2 solar cells; sandwich structure; sol-gel spin-coating method; solar radiation; titanium alkoxide; voltage 0.397 V; Conductive films; Electrodes; Electrons; Ethanol; Glass; Indium tin oxide; Morphology; Photovoltaic cells; Polymer films; Titanium; TiO2; polyaniline; solar cells;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2008. NEMS 2008. 3rd IEEE International Conference on
Conference_Location :
Sanya
Print_ISBN :
978-1-4244-1907-4
Electronic_ISBN :
978-1-4244-1908-1
DOI :
10.1109/NEMS.2008.4484303
