Optical Properties of Co2+ Doped ZnS Nanocrystals

被引：0

作者：

Sarkar, R. ^{[1
]}

Kumbhakar, P. ^{[1
]}

Mitra, A. K. ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Phys, Durgapur 713209, India

来源：

INTERNATIONAL CONFERENCE ON ADVANCED NANOMATERIALS AND NANOTECHNOLOGY (ICANN 2009) | 2010年 / 1276卷

关键词：

Cobalt doped ZnS; Nanocrystals; Optical properties; Photoluminescence; PHOTOLUMINESCENCE;

D O I：

10.1063/1.3504348

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

ZnS nanocrystals with Co2+ doping have been prepared through a soft chemical route. The undoped ZnS and Co2+ doped ZnS:Co nanocrystals have been analyzed using X-ray diffraction (XRD), high resolution transmission electron microscope (HRTEM), and ultraviolet-visible (UV-VIS) spectrophotometer. Undoped sample exhibits room-temperature photoluminescence (PL) emission in the blue region with a broad spectral band peaked at similar to 397 nm under UV excitation. But from the 1.5% Co2+ doped samples, a strong blue emission peaked at similar to 470nm is observed and further increase in doping leads to considerable blue shift and enhancement in intensity of the PL spectrum.

引用

页码：8 / 13

页数：6

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