Blue semiconductor nanocrystal laser

被引：171

作者：

Chan, Y ^{[1
]}

Steckel, JS ^{[1
]}

Snee, PT ^{[1
]}

Caruge, JM ^{[1
]}

Hodgkiss, JM ^{[1
]}

Nocera, DG ^{[1
]}

Bawendi, MG ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.1863445

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate tunable room-temperature amplified spontaneous emission and lasing from blue-emitting core-shell CdS/ZnS nanocrystals (NCs) stabilized in a sol-gel derived silica matrix. Variable stripe length measurements show that these NC-silica composites have a modal gain of similar to100 cm(-1) at room temperature. Coating microspheres with a NC-silica composite film via a facile process resulted in uniform resonators that exhibit room-temperature lasing over long periods of continuous excitation. This work opens up a spectral window for emission tunable, microscale NC-based lasers. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 22 条

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