%0 Journal Article
%T Application of upconversion luminescence in dye-sensitized solar cells<br>
%A GuiXiang Xie
%A JianMing Lin
%A JiHuai Wu
%A Zhang Lan
%A QingHua Li
%A YaoMing Xiao
%A GenTian Yue
%A HaiFeng Yue
%A MiaoLiang Huang
%A <br>
%J 科学通报(英文版)
%D 2011
%I 
%X An upconversion luminescence powder TiO2:(Er3+, Yb3+) is prepared by a hydrothermal method and used to fabricate dye-sensitized solar cell (DSSC). The TiO2:(Er3+, Yb3+) powder undergoes upconversion luminescence, converting infrared light which the dye can not absorb into visible light with wavelengths of 510-700 nm which the dye can absorb, increasing the photocurrent of the DSSC. TiO2:(Er3+, Yb3+) also acts as a p-type dopant, heightening the Fermi level of the oxide film, which increases the photovoltage of the DSSC. The best performance of the DSSC is found when the ratio of TiO2/luminescence powder is 1/3 in the luminescence layer. Under simulated solar irradiation of 100 mW cm-2 (AM 1.5), the DSSC containing TiO2:(Er3+, Yb3+) doping achieves a light-to-electricity energy conversion efficiency of 7.28% compared with 6.41% for the undoped DSSC.
%K dye-sensitized solar cell
%K upconversion luminescence
%K p-type doping<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=DB72A0A003453C0431EC912A440DA20C&yid=9377ED8094509821&vid=014B591DF029732F&iid=CA4FD0336C81A37A&sid=6700D0D256586E73&eid=74011071555EB4E5&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=23