Influence of defect density on the ZnO nanostructures of dye-sensitized solar cells  

作　　者：Yan-Yan Lou Shuai Yuan Yin Zhao Zhu-Yi Wang Li-Yi Shi 

机构地区：[1]Research Center of Nanoscience and Nanotechnology,Shanghai University [2]Laboratory for Microstructures,Shanghai University

出　　处：《Advances in Manufacturing》2013年第4期340-345,共6页先进制造进展（英文版）

基　　金：the supports of Shanghai Leading Academic Discipline Project(Grant No.S30107);National Natural Science Foundation of China(Grant No.51202138);Natural Science Foundation of Shanghai(Grant No.12ZR1410500);Research&Innovation Projects of Shanghai Education Commission(Grant No.11YZ22);Project of Shanghai Environment Condition(Grant No.10dz2252300);Science Foundation for Excellent Youth Scholars of Shanghai University;Science Foundation for Excellent Youth Scholars of Universities(Shanghai)

摘　　要：The relationship between bilayer nanostructure, defect density and dye-sensitized solar cell （DSCC） per- formances was investigated. By adjusting bilayer nano- structures, defect density of ZnO nanodendrite-nanorods structure was decreased comparing to that of nanoflower- nanorods structure. The performances of DSCC based on ZnO nanodendrites-nanorods structure and nanoflower- nanorods structure were studied by Raman spectrum, room temperature photoluminescence, dye loading, photocurrent density-voltage characteristic and open-circuit voltage decay （OCVD） technique. The device with nanodendrite- nanorods structure has lower charge recombination rate and prolonged electron lifetime due to its microstructure feature.The relationship between bilayer nanostructure, defect density and dye-sensitized solar cell （DSCC） per- formances was investigated. By adjusting bilayer nano- structures, defect density of ZnO nanodendrite-nanorods structure was decreased comparing to that of nanoflower- nanorods structure. The performances of DSCC based on ZnO nanodendrites-nanorods structure and nanoflower- nanorods structure were studied by Raman spectrum, room temperature photoluminescence, dye loading, photocurrent density-voltage characteristic and open-circuit voltage decay （OCVD） technique. The device with nanodendrite- nanorods structure has lower charge recombination rate and prolonged electron lifetime due to its microstructure feature.

关 键 词：ZnO BILAYER Nanostructure -Nanodendrite-nanorods defect ~ Dye-sensitized solarcells 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB383.1[一般工业技术—材料科学与工程]