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Biexcitonic luminescence properties of Cd_xZn_1-xS/ZnS/Mg_yZn_1-yS Separate Confinement Heterostructures

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 52 Issue 1 Page 51-56
published_at 2001-10
A030052000107.pdf
[fulltext] 457 KB
Title
Cd_xZn_1-xS/ZnS/Mg_yZn_1-yS 分離閉じ込めヘテロ構造における励起子分子の発光特性
Biexcitonic luminescence properties of Cd_xZn_1-xS/ZnS/Mg_yZn_1-yS Separate Confinement Heterostructures
Creators Ishizaki Shinya
Creators Murata Akira
Creators Yamada Yoichi
Creators Taguchi Tsunemasa
Source Identifiers
Creator Keywords
Cd_xZn_1-xS ZnS Mg_yZn_1-yS SCH Mg_yZn_1-yS MQW ZnS MQW Biexciton Exciton Temperature-dependent PL Time-resolved PL
Luminescence properties of CdxZn1-xS/ZnS/MgyZn1-yS separate confinement heterostructures (SCH), CdxZn1-xS/MgyZn1-yS multiple quantum well (MQW) structures, and CdxZn1-xS/ZnS MQW structures grown by low-pressure metalorganic chemical vapor deposition have been studied by mean of temperature-dependent and time-resolved photoluminescence spectroscopy. Biexcitonic luminescence was clearly observed from these structures at 4K. In comparison with the thermal quenching of integrated luminescence intensity observed from CdxZn1-xS/ZnS MQW structure, the thermal quenching observed from CdxZn1-xS/ZnS/MgyZn1-yS SCH structure was suppressed by approximately one order of magnitude. The suppression was attributed to the enhancement of carrier confinement effect by the insert of MgyZn1-yS cladding layer.
Subjects
工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 2001-10
File Version Version of Record
Access Rights open access
Relations
[ISSN]1345-5583
[NCID]AA11422756
[isVersionOf] [URI]http://memoirs.lib-e.yamaguchi-u.ac.jp/
Schools 工学部