Green luminescence of ZnS and ZnS:Cu quantum dots embedded in zeolite matrix

被引：51

作者：

Nath, S. S. ^{[1
]}

Chakdar, D. ^{[1
]}

Gope, G. ^{[1
]}

Kakati, J. ^{[1
]}

Kalita, B. ^{[1
,2
]}

Talukdar, A. ^{[1
,2
]}

Avasthi, D. K. ^{[1
,3
]}

机构：

[1] Natl Inst Technol Silchar, Dept Phys, Silchar 788010, Assam, India

[2] Gauhati Univ, Dept Chem, Gauhati 14, India

[3] IUAC, New Delhi 110067, India

来源：

JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 09期

关键词：

PHOTOLUMINESCENCE; STATES;

D O I：

10.1063/1.3110767

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the synthesis of ZnS and ZnS:Cu (copper doped ZnS) quantum dots by chemical method at room temperature. In this technique ZnS and ZnS: Cu quantum dots are produced by simple chemical reactions where zeolite acts as matrix and plays the key role in controlling particle growth during synthesis. ZnS exhibits luminescence properties such as Zn2+ related emission. ZnS: Cu possesses Cu related emission, efficient low voltage electroluminescence, and super linear voltage-brightness electroluminescence characteristics. This study demonstrates the technological importance of semiconductor quantum dots prepared by low cost chemical route. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3110767]

引用

页数：4

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