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题名: Composition controlled preparation of Cu-Zn-Sn precursor films for Cu2ZnSnS4 solar cells using pulsed electrodeposition
作者: Dang, Wenping1;  Ren, Xiaodong1;  Zi, Wei1;  Jia, Lujian1;  Liu, Shengzhong (Frank)1, 2
关键词: CZTS ;  Pulsed deposition ;  Solar cell
刊名: JOURNAL OF ALLOYS AND COMPOUNDS
发表日期: 2015-11-25
DOI: 10.1016/j.jallcom.2015.07.203
卷: 650, 页:1-7
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary ;  Metallurgy & Metallurgical Engineering
研究领域[WOS]: Chemistry ;  Materials Science ;  Metallurgy & Metallurgical Engineering
英文摘要: A pulsed electrodeposition technique is developed to prepare Cu-Zn-Sn (CZT) precursor films for the Cu2ZnSnS4 (CZTS) solar cells. The CZT precursor films are co-deposited on Mo-coated substrate using a cyanide-free electrolyte containing Zn (II) and Sn (II) salts. During the deposition, CuSO4 solution is supplied at controlled rate using a peristaltic pump to effectively regulate Cu2+ concentration. In addition, C6H5Na3O7 is used as a coordination ligand to further balance activities of the Cu2+, Sn2+ and Zn2+. The CZTS films are then prepared using a sulfurization process to convert the electrodeposited CZT precursors at 580 degrees C in a sulphur atmosphere. The annealed thin films are characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), EDAX and X-ray photoelectron spectroscopy (XPS) techniques for their structural, morphological, compositional and chemical properties. It is found that the addition rate of Cu (II) has significant effects on the properties of the CZTS thin films. The CZTS film prepared using the optimized copper addition rate (0.15 ml/min) shows pure kesterite phase, Cu-poor and Zn-rich composition, compact morphology and good band gap similar to 1.45 eV. Solar cells using the structure glass/Mo/CZTS/CdS/i-ZnO/ZnO:Al achieves a respectable external quantum efficiency and solar cell efficiency. (C) 2015 Elsevier B.V. All rights reserved.
关键词[WOS]: SINGLE-STEP ELECTRODEPOSITION ;  IONIC LAYER ADSORPTION ;  THIN-FILMS ;  OPTICAL-PROPERTIES ;  FABRICATION ;  EFFICIENCY ;  PHOTOVOLTAICS ;  NANOPARTICLES ;  DEPOSITION ;  CUINSE2
语种: 英语
WOS记录号: WOS:000361519300001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146556
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Shaanxi Normal Univ, Sch Mat Sci & Engn, Key Lab Appl Surface & Colloid Chem, Natl Minist Educ, Xian 710062, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

Recommended Citation:
Dang, Wenping,Ren, Xiaodong,Zi, Wei,et al. Composition controlled preparation of Cu-Zn-Sn precursor films for Cu2ZnSnS4 solar cells using pulsed electrodeposition[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2015,650:1-7.
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