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