Enhanced photovoltaic performance in TiO2/P3HT hybrid solar cell by interface modification. (1st February 2015)

• Record Type: Journal Article
• Authors: Wang, Duofa; Tao, Haizheng; Zhao, Xiujian; Ji, Meiyan; Zhang, Tianjin
• Is Part Of: Journal of semiconductors. Volume 36:Number 2(2015:Feb.)
• Page Start: 023006
• Publication Date: 2015-02-01
• Subjects: Semiconductors -- Periodicals; 621.38152
• DOI: 10.1088/1674-4926/36/2/023006
• Languages: English
• ISSNs: 1674-4926

Abstract

<abstract xml:lang="en"> <title>Abstract</title> <p>A TiO₂/P3HT hybrid solar cell was fabricated by infiltrating P3HT into the pores of TiO₂ nanorod arrays. To further enhance the photovoltaic performance, anthracene-9-carboxylic acid was employed to modify the interface of TiO₂/P3HT before P3HT was coated. Results revealed that the interface treatment significantly enhances the photovoltaic performance of the cell. The efficiency of the hybrid solar cells reaches 0.28% after interface modification, which is three times higher compared with the un-modified one. We find that except for the increased exciton dissociation efficiency recognized by the previous reports, the suppressing of electron back recombination is another important factor leading to the enhanced photovoltaic performance.</p> </abstract>