教師資料查詢 | 類別: 期刊論文 | 教師: 林大欽 LING, DAH-CHIN (瀏覽個人網頁)

標題:Carrier recombination dynamics in electronically coupled multi-layer InAs/GaAs quantum dots
學年106
學期2
出版(發表)日期2018/03/01
作品名稱Carrier recombination dynamics in electronically coupled multi-layer InAs/GaAs quantum dots
作品名稱(其他語言)
著者Antaryami Mohantaa; Der-Jun Jang; Shu-Kai Lu; Dah-Chin Ling; J.S. Wang; R.-B. Chen; F.-C. Chuang
單位
出版者
著錄名稱、卷期、頁數Journal of Luminescence, 195, 109 (2018)
摘要Optical properties of multi-layer InAs/GaAs quantum dots (QDs) with different GaAs spacer layer thicknesses
(dGaAs) of 20, 15 and 10 nm are investigated by time-integrated and time-resolved photoluminescence (PL)
spectroscopy. The energy spacing between ground and excited state is observed to be decreased with decrease in
dGaAs and increased with increase in excitation intensity. The rate of carrier capture and energy relaxation in QDs
is found to be slower at excitation energy of 3.06 eV than that at 1.53 eV which is attributed to intervalley
scattering in GaAs. The effect of intervalley scattering process in GaAs on decay time is negligible for dGaAs of
20 nm and is prominent for dGaAs ≤ 15 nm.
關鍵字Photoluminescence;InAs/GaAs quantum dots;Carrier dynamics;Phonon bottleneck effect
語言英文(美國)
ISSN0022-2313
期刊性質國外
收錄於SCI;
產學合作
通訊作者Der-Jun Jang
審稿制度
國別荷蘭
公開徵稿
出版型式,電子版,紙本
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