In-situ growth of Cu2ZnSnS4 nanoparticles on thiol reduce graphene oxide for Cu2ZnSnS4-sensitized solar cells

JOURNAL OF ALLOYS AND COMPOUNDS

卷:698

Article

Tao, Haijun^1,2  Cao, Fangxu¹  Zhang, Chuanxiang³  Chen, Shanlong¹  Tan, Bin¹  Tao, Jie¹ 

[1] Nanjing Univ Aeronaut & Astronaut, Jiangsu Key Lab Mat & Technol Energy Convers, Coll Mat Sci & Technol, Nanjing 211100, Jiangsu, Peoples R China

[2] Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Changzhou 213164, Jiangsu, Peoples R China

[3] Nanjing Inst Technol, Coll Mat Engn, Nanjing 211167, Jiangsu, Peoples R China

关键词: CZTS;    Thiol reduced graphene oxide;    Solvothermal method;    Photoelectrochemical performance;   

DOI  :  10.1016/j.jallcom.2016.12.190

来源: Elsevier

【 摘 要 】

Cu2ZnSnS4 (CZTS) as a narrow band gap semiconductor had been used to couple with TiO2 for enhancing the utilization of solar energy. In this article, the TiO2-thiol reduce grapheme oxide (TrGO)-CZTS heterostructure is constructed via a facile in-situ solvothermal method. The in-situ solvothermal method could acquire the uniform particles sizes and no aggregation of CZTS by adjusting the sulfur source and reactant solvent. The formation mechanism of TiO2-TrGO-CZTS structure and the combination behavior of TrGO and CZTS were proposed. The thiol groups in TrGO give the site for CZTS to grow and form the chemical bond which could stabilize the connection of CZTS and TrGO. The in-situ reaction CZTS composite electrode exhibited a better photoelectrochemical performance than the self-assemble CZTS. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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