Optical and electrical properties of uniform non-toxic Cu2ZnSnS4 nanocrystal and its application in solar cells

被引：3
作者：
Abe, Kentaro [1 ,2 ]
Shen, Heping [1 ]
Li, Xin [1 ]
Zhao, Lin [3 ]
Zhao, Xingyue [1 ]
Li, Jianbao [1 ,4 ]
Iwamoto, Mitsumasa [1 ,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] Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 152, Japan
[3] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[4] Hainan Univ, Coll Mat Sci & Chem Engn, Haikou 570228, Peoples R China
来源：
POLYHEDRON | 2014年 / 82卷
基金：
中国国家自然科学基金;
关键词：
Cu2ZnSnS4 (CZTS); Nanocrystal; Non-toxic; Schottky solar cell; Hole mobility; THIN-FILMS; GROWTH; NANOPARTICLES; SULFURIZATION; CONFINEMENT; CDSE;
D O I：
10.1016/j.poly.2014.05.072
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Cu2ZnSnS4 (CZTS) nanocrystals were synthesized successfully by two hot-injection methods, for which it was found that the temperature for sulfur precursor injection is an important factor to determine the morphology of nanocrystals. Injection carried out at a lower temperature lead to more homogeneous samples. Pure kesterite CZTS with diameter of about 15-20 nm was achieved confirmed by comprehensive characterizations including TEM, XRD, Raman, and XPS. Besides, CZTS nanocrystal based thin film, which was fabricated by solution process, exhibited a hole mobility of 4.3 x 10(-2) cm(2)/V-s. The film was then successfully incorporated into a Schottky solar cell, yielding an open circuit voltage of about 300 mV. It is notable that this was the first time that the completely nontoxic Schottky solar cell was achieved based on CZTS nanocrystal, which was fabricated completely under room temperature. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：148 / 153
页数：6
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