title: Well-Dispersed Cu2ZnSnS4Nanocrystals Synthesized from Alcohols and Their Applications for Polymer Photovoltaics.
abstract: In this work, we report on a simple non-injection synthesis routine for the preparation of well-dispersed monocrystalline Cu2ZnSnS4(CZTS) nanoparticles (NPs). The nanocrystal morphology was investigated by scanning and transmission electron microscopy, and its phase composition was studied by X-ray diffraction and Raman analyses. Cu2ZnSnS4nanoparticles prepared using ethanolamine and diethanolamine as chemical stabilizers showed a high purity and a suitable size for polymer solar cell applications. The fabricated CZTS NPs are shown to be easily dispersed in a polymer/fullerene aromatic solution as well as the hybrid photovoltaic active layer. Thanks to the increment in the light absorption and electrical conductivity of the active layer, solar cells with a small amount of CZTS nanoparticles resulted in a clear enhancement of the photovoltaic performance. The short-circuit current density is increased from 9.90 up to 10.67 mA/cm2, corresponding to an improvement in the power conversion efficiency (PCE) from 3.30 to 3.65%.
authors.affiliation: Co-Innovation Center for Micro/Nano Optoelectronic Materials and Devices, Research Institute for New Materials and Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
authors.forename: Jiang
authors.initials: J
authors.lastname: Cheng
authors.affiliation: College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
authors.forename: Zhongjun
authors.initials: Z
authors.lastname: Dai
authors.affiliation: College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
authors.forename: Bing
authors.initials: B
authors.lastname: Chen
authors.affiliation: Co-Innovation Center for Micro/Nano Optoelectronic Materials and Devices, Research Institute for New Materials and Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
authors.forename: Ran
authors.initials: R
authors.lastname: Ji
authors.affiliation: Co-Innovation Center for Micro/Nano Optoelectronic Materials and Devices, Research Institute for New Materials and Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
authors.forename: Xin
authors.initials: X
authors.lastname: Yang
authors.affiliation: Co-Innovation Center for Micro/Nano Optoelectronic Materials and Devices, Research Institute for New Materials and Technology, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China.
authors.forename: Rong
authors.initials: R
authors.lastname: Hu
authors.affiliation: College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China. jiangzhu415@163.com.
authors.forename: Jiang
authors.initials: J
authors.lastname: Zhu
authors.affiliation: College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing, 402160, People's Republic of China. lli@cqwu.edu.cn.
authors.forename: Lu
authors.initials: L
authors.lastname: Li
keywords: Cu2ZnSnS4; Nanocrystalline material; Photoelectrochemical property; Solvothermal method