title: Nanocomposite of tin sulfide nanoparticles with reduced graphene oxide in high-efficiency dye-sensitized solar cells.
abstract: A nanocomposite of SnS2 nanoparticles with reduced graphene oxide (SnS2@RGO) had been successfully synthesized as a substitute conventional Pt counter electrode (CE) in a dye-sensitized solar cell (DSSC) system. The SnS2 nanoparticles were uniformly dispersed onto graphene sheets, which formed a nanosized composite system. The effectiveness of this nanocomposite exhibited remarkable electrocatalytic properties upon reducing the triiodide, owning to synergistic effects of SnS2 nanoparticles dispersed on graphene sheet and improved conductivity. Consequently, the DSSC equipped with SnS2@RGO nanocomposite CE achieved power conversion efficiency (PCE) of 7.12%, which was higher than those of SnS2 nanoparticles (5.58%) or graphene sheet alone (3.73%) as CEs and also comparable to the value (6.79%) obtained with pure Pt CE as a reference.
authors.affiliation: School of Physics and Materials Scienceand ‡Anhui Key Laboratory of Information Materials and Devices, Anhui University , Hefei 230601, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Yang
authors.forename: Xueqin
authors.initials: X
authors.lastname: Zuo
authors.forename: Peng
authors.initials: P
authors.lastname: Chen
authors.forename: Lei
authors.initials: L
authors.lastname: Zhou
authors.forename: Xiao
authors.initials: X
authors.lastname: Yang
authors.forename: Haijun
authors.initials: H
authors.lastname: Zhang
authors.forename: Guang
authors.initials: G
authors.lastname: Li
authors.forename: Mingzai
authors.initials: M
authors.lastname: Wu
authors.forename: Yongqing
authors.initials: Y
authors.lastname: Ma
authors.forename: Shaowei
authors.initials: S
authors.lastname: Jin
authors.forename: Xiaoshuang
authors.initials: X
authors.lastname: Chen
keywords: DSSC; SnS2@RGO; counter electrode; nanocomposites