Different depositing amount of CuInS2 on TiO2 nanoarrays for polymer/CuInS2–TiO2 solar cells. (December 2015)

• Record Type: Journal Article
• Authors: Yue, Wenjin; Pan, Yuwen; Xie, Zhongwen; Yang, Xing; Hu, Lingling; Hong, Lirui; Tong, Yafei; Cheng, Qingqing
• Is Part Of: Materials science in semiconductor processing. Volume 40(2015:Dec.)
• Page Start: 257
• Page End: 261
• Publication Date: 2015-12
• Subjects: CuInS2 -- TiO2 -- Polymer-based solar cells; Semiconductors -- Periodicals; Integrated circuits -- Materials -- Periodicals; Semiconducteurs -- Périodiques; Circuits intégrés -- Matériaux -- Périodiques; Electronic journals; 621.38152
• DOI: 10.1016/j.mssp.2015.06.072
• Languages: English
• ISSNs: 1369-8001

Abstract

Abstract: This paper reports the deposition of CuInS2 on TiO2 nanoarrays, with different depositing amounts and demonstrates the application of TiO2 –CuInS2 composites in polymer-based solar cells. The composites of TiO2 –CIS1 and TiO2 –CIS2 were prepared by the deposition of CuInS2 on TiO2 with one-step or two-step solvethermal reactions, respectively, and characterized by XRD, SEM, TEM, absorption spectrum and PL spectrum. Results showed that TiO2 –CIS1 displayed the higher light-harvesting ability and PL quenching efficiency compared to TiO2 –CIS2, although less CuInS2 was deposited on TiO2 surface. As a result, polymer/TiO2 –CIS1 solar cells displayed much higher J sc correlated with the increased absorptivity and charge separation efficiency, and the higher V oc was originated from the presence of strong interaction between TiO2 and CuInS2 in TiO2 –CIS1 resulting in the effective modification of TiO2 surface by CuInS2 .