High electrocatalytic activity of self-standing hollow NiCo2S4 single crystalline nanorod arrays towards sulfide redox shuttles in quantum dot-sensitized solar cells

Junwu Xiao; Xianwei Zeng; Wei Chen; Fei Xiao; Shuai Wang

doi:10.1039/c3cc44242j

High electrocatalytic activity of self-standing hollow NiCo2S4 single crystalline nanorod arrays towards sulfide redox shuttles in quantum dot-sensitized solar cells

Chem Commun (Camb). 2013 Dec 28;49(100):11734-6. doi: 10.1039/c3cc44242j.

Authors

Junwu Xiao¹, Xianwei Zeng, Wei Chen, Fei Xiao, Shuai Wang

Affiliation

¹ Department of Chemistry and Chemical Engineering, Hubei Key Laboratory of Material Chemistry and Service Failure, Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, Huazhong University of Science & Technology, Wuhan 430074, PR China. chjwxiao@hust.edu.cn chmsamuel@hust.edu.cn.

PMID: 23925352
DOI: 10.1039/c3cc44242j

Abstract

Self-standing single crystalline NiCo2S4 hollow nanorod arrays are prepared for catalysing the polysulfide redox couple in quantum dot-sensitized solar cells (QDSCs). The QDSCs using NiCo2S4 as a counter electrode (CE) achieved a power conversion efficiency of 4.22%, which exceeds the performance of QDSCs based on a Pt CE by 38.4%.