Size quantization in Cu2Se nanocrystals

被引：5
|
作者：
Govindraju, S. [1 ]
Kalenga, M. P. [1 ]
Airo, M. [1 ]
Moloto, M. J. [2 ]
Sikhwivhilu, L. M. [3 ]
Moloto, N. [1 ]
机构：
[1] Univ Witwatersrand, Sch Chem, Inst Mol Sci, ZA-2050 Johannesburg, South Africa
[2] Vaal Univ Technol, Dept Chem, ZA-I900 Vanderbijlpark, South Africa
[3] MINTEK, Adv Mat Div, Nanotechnol Innovat Ctr, ZA-2125 Randburg, South Africa
来源：
OPTICAL MATERIALS | 2014年 / 38卷
关键词：
Copper selenide; Size quantization; Nanocrystals; SELENIDE NANOCRYSTALS; THIN-FILMS;
D O I：
10.1016/j.optmat.2014.10.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Herein we report on the synthesis of size quantized copper selenide nanocrystals via the colloidal method. Different colours of the sample were obtained at different time intervals indicative of the sizes of the nanocrystals. The absorption band edges were blue-shifted from bulk indicative of quantum confinement. This was corroborated by the TEM results that showed very small particles ranging from 2 nm to 7 nm. This work therefore shows a phenomenon readily observed in cadmium chalcogenide nanocrystals but has never been reported for copper based chalcogenides. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：310 / 313
页数：4
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