ZnO nanoparticles embedded in polymeric matrices

被引：49

作者：

Mahamuni, S

Bendre, BS

Leppert, VJ

Smith, CA

Cooke, D

Risbud, SH

Lee, HWH

机构：

[1] UNIV CALIF DAVIS,DEPT CHEM ENGN & MAT SCI,DAVIS,CA 95616

[2] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550

来源：

NANOSTRUCTURED MATERIALS | 1996年 / 7卷 / 06期

关键词：

D O I：

10.1016/0965-9773(96)00043-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly stable, wurtzite quantum sized ZnO colloids encapsulated in polymers have been synthesized. The particles can be obtained in a powder form and are partially redissolvable in organic media. A shift in the optical absorption spectrum confirms quantum size effects. Stationary fluorescence measurements exhibit excitonic as well as trapped fluorescence. The intensity of trapped fluorescence changes with capping. The time resolved fluorescence measurements indicate considerably short decay times.

引用

页码：659 / 666

页数：8

共 14 条

[11] PHOTOCHEMISTRY OF SEMICONDUCTOR COLLOIDS .13. PREPARATION OF EXTREMELY SMALL ZNO PARTICLES, FLUORESCENCE PHENOMENA AND SIZE QUANTIZATION EFFECTS
KOCH, U
FOJTIK, A
WELLER, H
HENGLEIN, A
[J]. CHEMICAL PHYSICS LETTERS, 1985, 122 (05) : 507 - 510
[12] THIOPHENOL-CAPPED ZNS QUANTUM DOTS
MAHAMUNI, S
KHOSRAVI, AA
KUNDU, M
KSHIRSAGAR, A
BEDEKAR, A
AVASARE, DB
SINGH, P
KULKARNI, SK
[J]. JOURNAL OF APPLIED PHYSICS, 1993, 73 (10) : 5237 - 5240
[13] SEMICONDUCTOR CLUSTERS IN THE SOL-GEL PROCESS - QUANTIZED AGGREGATION, GELATION, AND CRYSTAL-GROWTH IN CONCENTRATED ZNO COLLOIDS
SPANHEL, L
ANDERSON, MA
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (08) : 2826 - 2833
[14] QUANTUM SIZE EFFECTS ON THE EXCITON ENERGY OF CDS CLUSTERS
WANG, Y
HERRON, N
[J]. PHYSICAL REVIEW B, 1990, 42 (11): : 7253 - 7255

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