Improving efficiency by hybrid TiO(2) nanorods with 1,10-phenanthroline as a cathode buffer layer for inverted organic solar cells

Chunming Sun; Yulei Wu; Wenjun Zhang; Nianquan Jiang; Tonggang Jiu; Junfeng Fang

doi:10.1021/am404423k

Improving efficiency by hybrid TiO(2) nanorods with 1,10-phenanthroline as a cathode buffer layer for inverted organic solar cells

ACS Appl Mater Interfaces. 2014 Jan 22;6(2):739-44. doi: 10.1021/am404423k. Epub 2014 Jan 3.

Authors

Chunming Sun¹, Yulei Wu, Wenjun Zhang, Nianquan Jiang, Tonggang Jiu, Junfeng Fang

Affiliation

¹ Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , Ningbo, 315201, China.

PMID: 24386910
DOI: 10.1021/am404423k

Abstract

We reported a significant improvement in the efficiency of organic solar cells by introducing hybrid TiO2:1,10-phenanthroline as a cathode buffer layer. The devices based on polymer thieno[3,4-b]thiophene/benzodithiophene:[6,6]-phenyl C71-butyric acid methyl ester (PTB7:PC71BM) with hybrid buffer layer exhibited an average power conversion efficiency (PCE) as high as 8.02%, accounting for 20.8% enhancement compared with the TiO2 based devices. The cathode modification function of this hybrid material could also be extended to the poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PC61BM) system. We anticipate that this study will stimulate further research on hybrid materials to achieve more efficient charge collection and device performance.

Publication types

Research Support, Non-U.S. Gov't