Narrow with tunable optical band gap of CdS based core shell nanoparticles: Applications in pollutant degradation and solar cells

被引：37
|
作者：
Murugadoss, G. [1 ]
Thangamuthu, R. [2 ]
Jayavel, R. [3 ]
Kumar, M. Rajesh [4 ]
机构：
[1] Univ Hyogo, Sch Engn, Dept Elect Engn & Comp Sci, Himeji, Hypogo 6712280, Japan
[2] CSIR, Cent Electrochem Res Inst, Electrochem Mat Sci Div, Karaikkudi 630006, Tamil Nadu, India
[3] Anna Univ, Ctr Nanosci & Technol, Chennai 600025, Tamil Nadu, India
[4] Annamalai Univ, Dept Phys, Annamalainagar 608002, Tamil Nadu, India
来源：
JOURNAL OF LUMINESCENCE | 2015年 / 165卷
关键词：
Sulfide based core-shell heterostructures; Optical properties; Thermal analysis; Photocatalysis; Solar cells; THIN-FILMS; THERMAL-PROPERTIES; NANOCRYSTALS; COST; PBS;
D O I：
10.1016/j.jlumin.2015.03.036
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work, sulfide-based core-shell heterostructures were successfully synthesized by chemical method. Structural, morphological, chemical composition, optical, and thermal properties of core-shell materials were investigated using different analytical techniques. The thickness of the shell can be tuned by controlling the concentration of respective shell precursors. TEM and HR-TEM analyses show that the particles are spherical in shape with particle size in the range 3-5 nm. Optical studies reveal that the core-shell materials possess strong visible-light photocatalytic activity. Among the four photocatalysts, CdS/SnS showed the best activity towards photo-degradation of methylene blue (MB). Addition of shells to the CdS core has a clear impact on the performance of solar cells. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：30 / 39
页数：10
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