Effect of reducing agent in the formation of CdSe nanoparticles by chemical reduction route

被引：5

作者：

Manna, A. ^{[1
]}

Bhattacharya, R. ^{[1
]}

Das, T. K. ^{[1
]}

Saha, S. ^{[1
]}

机构：

[1] Vidyasagar Univ, Dept Phys & Technophys, Midnapore, W Bengal, India

来源：

PHYSICA B-CONDENSED MATTER | 2011年 / 406卷 / 04期

关键词：

Size controlled CdSe nanoparticle; Chemical synthesis; Crystal structure and symmetry; Optical and electrical properties; Relaxation time; QUANTUM DOTS; NANOCRYSTALLITES; PRECURSORS;

D O I：

10.1016/j.physb.2010.12.042

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

CdSe nanoparticles were synthesized using a simple chemical reduction route at room temperature. Nanoparticle size was controlled by the amount of reducing agent and was characterized by TEM and TED. With increased amounts of sodium borohydride as a reducing agent, the size of the nanoparticles decreased. Size of the nanoparticles varies between 5 and 12 nm with a size dispersion of 1.5 nm. The grown sample was ultra-sonicated in ethanol. The dispersed sample was characterized structurally, optically and electrically. The long-duration photoconductive decay at room temperature shows exponential variation under weak illumination. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：981 / 984

页数：4

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