Preparation of CdS/ZnO Core/shell Structured Nanoparticies by Hydrothermal Method

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Abstract:

CdS and ZnO capped CdS CdSZnO semiconductor nanoparticles were synthesized via hydrothermal method by thermal decomposition of the cysteine-cadmium and ZnOH42- complex precursors. Both of the photoluminescence properties and structure characterization confirmed the coreshell structure as expected. Compared to CdS nanoparticles, the band-gap emission of CdSZnO was greatly improved, that means the capping layer of ZnO modified the surface of CdS and reduced the surface defects effectively. ED and XRD confirmed the formation of hexagon phased CdS and the TEM image indicated the size of CdSZnO was about 20 nm.

Author(s):
Yan, Chunhua ; Sun, Lingdong ; Fu, Xuefeng ; Liao, Chunsheng
Author Organization(s):
PEKING UNIV BEIJING (CHINA)
Descriptive Note:
Symposium proceedings
Supplementary Note:
Pub in: Materials Research Society Symposium Proceedings, Volume 692. This article is from ADA405047 Progress in Semiconductor Materials for Optoelectronic Applications Symposium held in Boston, Massachusetts on November 26-29, 2001.
Pagination:
0005

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
F49620-01-1-0347, N00014-01-1-0649
Monitor Series:
AFOSR, ONR
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_1.2_Force Preparation; JCA_1_Force Support
Modernization Areas:
Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
*SEMICONDUCTORS, *ZINC OXIDES, *CADMIUM SELENIDES, OPTICAL PROPERTIES, PHOTOLUMINESCENCE, REACTION TIME, MORPHOLOGY, SURFACE PROPERTIES, CHINA, NANOTECHNOLOGY, BAND GAPS
Field(s)/Group(s):
Solid State Physics
Keyword(s):
FOREIGN REPORTS, COMPONENT REPORT, HYDROTHERMAL METHODS
Report Date:
2002 Jan 01
Creation Date:
2002 Sep 11