Photo-irradiation effects on preparation of colloidal quantum dots and their surface modification

被引：20

作者：

Kim, D ^{[1
]}

Teratani, N ^{[1
]}

Mizoguchi, K ^{[1
]}

Nishimura, H ^{[1
]}

Nakayama, M ^{[1
]}

机构：

[1] Osaka City Univ, Dept Phys, Dept Appl Phys, Sumiyoshi Ku, Osaka 5588585, Japan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2001年 / 15卷 / 28-30期

关键词：

D O I：

10.1142/S0217979201008779

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the possibility of size control of CdS and PbS quantum dots (QDs) with a narrow size distribution and the influence of the surface modification of the dots on their luminescence properties. The reduction of the size-distribution width of the CdS QDs grown in polyvinylpyrrolidone or polyvinyl alcohol solutions was succeeded by a size-selective photoetching. We controlled the size of the CdS QDs with the narrow distribution by changing the initial condition of the sample preparation and the irradiation-light energy. The QDs of PbS were grown with the different disperse agents and growth temperature. The band-edge emission is strongly activated by the surface modification of the CdS QDs.

引用

页码：3829 / 3832

页数：4

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