Photoluminescence of coumarin 540 dye confined in mesoporous silica

被引：34

作者：

Gu, G

Ong, PP

Li, QT

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 119260, Singapore

[2] Natl Univ Singapore, Dept Biochem, Singapore 119260, Singapore

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1999年 / 32卷 / 17期

关键词：

D O I：

10.1088/0022-3727/32/17/320

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Coumarin 540 dye was introduced into ordered mesoporous silica (MCM-41) by thermal diffusion in vacuum. Photoluminescence responses around 535 nm and 483 nm were detected from the mesoporous silica loaded with coumarin 540, arising from the confined dye and mesoporous silica, respectively. The photoluminescence lifetimes were found to be affected by the bonding between coumarin 540 molecules and the internal surface of the MCM-41.

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页码：2287 / 2289

页数：3

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