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:Energy relaxation dynamics in vertically coupled multi-stacked InAs/GaAs quantum dots
學年105
學期1
出版(發表)日期2017/01/19
作品名稱Energy relaxation dynamics in vertically coupled multi-stacked InAs/GaAs quantum dots
作品名稱(其他語言)
著者Antaryami Mohanta; Der-Jun Jang; Shu-Kai Lu; Dah-Chin Ling; J. S. Wang
單位
出版者
著錄名稱、卷期、頁數Applied Physics Letters 110(3), 033107(4 pages)
摘要Effect of GaAs spacer layer thickness (dGaAs) on carrier capture, and the relaxation process is studied in multi-stacked InAs/GaAs quantum dots by photoluminescence and time-resolved photoluminescence. Auger scattering is the dominating process for carrier relaxation above dGaAs of 15 nm. At dGaAs of 10 nm, the carrier relaxation process is faster due to the combined effect of both single longitudinal optical phonon and Auger scattering resulting in higher photoluminescence intensity. The photoluminescence rise time corresponding to carrier capture and relaxation in quantum dots is longer at 3.06 eV excitation than that at 1.53 eV due to the effect of intervalley scattering in GaAs.
關鍵字
語言英文(美國)
ISSN0003-6951;1077-3118
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,電子版,紙本
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