Reduced Graphene Oxide/CZTSxSe1-x Composites as a Novel Hole-Transport Functional Layer in Perovskite Solar Cells

被引：9
作者：
Nan, Hui [1 ]
Han, Jianhua [1 ]
Yin, Xuewen [1 ]
Zhou, Yu [1 ]
Yao, Zhibo [1 ]
Li, Xin [2 ]
Lin, Hong [1 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[2] Xiamen Univ, Pen Tong Sah Inst Micro Nano Sci & Technol, Xiamen 361005, Peoples R China
来源：
CHEMELECTROCHEM | 2019年 / 6卷 / 05期
关键词：
energy levels; hole transport; perovskite solar cells; reduced graphene oxide; sol-gel method; KESTERITE CU2ZNSNS4; HALIDE PEROVSKITES; HIGHLY EFFICIENT; THIN-FILMS; NANOCRYSTALS; SE; CU2ZNSN(S; SE)(4); TEMPERATURE; EXTRACTION; REDUCTION;
D O I：
10.1002/celc.201801459
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Exploiting lower cost and more stable hole-transport materials to replace spiro-OMeTAD is a hot topic in the research field of perovskite solar cells (PSCs). This work exploits a novel hole-transport composite containing reduced graphene oxides (RGO) and Cu2ZnSn(SSe)(4) (CZTS(x)Se(1-x)) by a green sol-gel method for efficient perovskite solar cells. The composition and crystalline structure of CZTS(x)Se(1-x) were examined by Raman and X-ray photoelectron spectroscopy as well as by X-ray diffraction measurements. Compared with a pristine RGO hole-transport layer (HTL), the PSC with RGO/CZTS(x)Se(1-x) composite shows an improved photovoltaic performance and enhanced stability. A maximum power conversion efficiency (PCE) of 10.08% and an enhanced stability were obtained for the cell with the RGO/CZTS(0.5)Se(0.5) composite. Moreover, only 14% efficiency reduction ratio was observed for the device stored in air at room temperature after 500 hours without encapsulation. In addition, the different S/Se ratios of CZTS(x)Se(1-x) showed distinct photovoltaic properties of the PSCs, which is attributed to the change of energetic structures, confirmed by electrochemical characterizations.
引用
收藏
页码：1500 / 1507
页数：8
相关论文
共 44 条
[1]   Cu2ZnSn(S1-xSex)4 thin films for photovoltaic applications: Influence of the precursor stacking order on the selenization process [J].
Altamura, Giovanni ;
Grenet, Louis ;
Bougerol, Catherine ;
Robin, Eric ;
Kohen, David ;
Fournier, Helene ;
Brioude, Arnaud ;
Perraud, Simon ;
Mariette, Henri .
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 588 :310-315
[2]  
[Anonymous], NATURE
[3]   Fabrication and Evaluation of Solution-Processed Reduced Graphene Oxide Electrodes for p- and n-Channel Bottom-Contact Organic Thin-Film Transistors [J].
Becerril, Hector A. ;
Stoltenberg, Randall M. ;
Tang, Ming Lee ;
Roberts, Mark E. ;
Liu, Zunfeng ;
Chen, Yongsheng ;
Kim, Do Hwan ;
Lee, Bang-Lin ;
Lee, Sangyoon ;
Bao, Zhenan .
ACS NANO, 2010, 4 (11) :6343-6352
[4]  
Burschka J., 2013, Nature
[5]   Stable and efficient hole transporting materials with a dimethylfluorenylamino moiety for perovskite solar cells [J].
Choi, Hyeju ;
Cho, Jin Woo ;
Kang, Moon-Sung ;
Ko, Jaejung .
CHEMICAL COMMUNICATIONS, 2015, 51 (45) :9305-9308
[6]   Improved efficient perovskite solar cells based on Ta-doped TiO2 nanorod arrays [J].
Cui, Qian ;
Zhao, Xiaochong ;
Lin, Hong ;
Yang, Longkai ;
Chen, Hong ;
Zhang, Yan ;
Li, Xin .
NANOSCALE, 2017, 9 (47) :18897-18907
[7]   The vibrational properties study of kesterite Cu2ZnSnS4 single crystals by using polarization dependent Raman spectroscopy [J].
Dumcenco, Dumitru ;
Huang, Ying-Sheng .
OPTICAL MATERIALS, 2013, 35 (03) :419-425
[8]   Enhancing the Performance of Perovskite Solar Cells by Hybridizing SnS Quantum Dots with CH3NH3PbI3 [J].
Han, Jianhua ;
Yin, Xuewen ;
Nan, Hui ;
Zhou, Yu ;
Yao, Zhibo ;
Li, Jianbao ;
Oron, Dan ;
Lin, Hong .
SMALL, 2017, 13 (32)
[9]   Single-step preparation and characterization of Cu2ZnSn(SxSe1-x)4 thin films deposited by pulsed laser deposition method [J].
He, Jun ;
Sun, Lin ;
Ding, Nuofan ;
Kong, Hui ;
Zuo, Shaohua ;
Chen, Shiyou ;
Chen, Ye ;
Yang, Pingxiong ;
Chu, Junhao .
JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 529 :34-37
[10]   FAR INFRARED STUDIES ON STANNITE AND WURTZSTANNITE TYPE COMPOUNDS [J].
HIMMRICH, M ;
HAEUSELER, H .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1991, 47 (07) :933-942
12345