Photoluminescence of Eu2+ doped ZnS nanocrystals

被引：16

作者：

Liu, SM ^{[1
]}

Guo, HQ

Zhang, ZH

Liu, FQ

Wang, ZG

机构：

[1] Chinese Acad Sci, Inst Semicond, Lab Semicond Mat Sci, Beijing 100083, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2000年 / 17卷 / 08期

关键词：

D O I：

10.1088/0256-307X/17/8/023

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Eu2+ doped ZnS nanocrystals exhibit new luminescence properties because of the enlarged energy gap of nanocrystalline ZnS host due to quantum confinement effects. Photoluminescence emission at about 520 nm from Eu2+ doped ZnS nanocrystals at room temperature is investigated by using photoluminescence emission and excitation spectroscopy. Such green emission with long lifetime (ms) is proposed to be a result of excitation, ionization, carriers recapture and recombination via Eu2+ centers in nanocrystalline ZnS host.

引用

页码：609 / 611

页数：3

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