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:Optical spectroscopic investigation of m-plane GaN thin films
學年103
學期1
出版(發表)日期2014/09/01
作品名稱Optical spectroscopic investigation of m-plane GaN thin films
作品名稱(其他語言)
著者Antaryami Mohanta; Tzeng, Yan-Zhi; Lee, Meng-En; Ling, Dah-Chin; Wang, Ying-Chieh; Lo, Ikai; Jang, Der-Jun
單位淡江大學物理學系
出版者Washington, DC: Optical Society of America
著錄名稱、卷期、頁數Optical Materials Express 4(9), pp.1920-1931
摘要M-plane GaN thin films grown on γ-LiAlO2 substrate were investigated at different temperatures by photoluminescence (PL) and time-resolved photoluminescence (TRPL) spectroscopy. The origin of two distinct emissions, P1 and P2 observed in the PL spectra were established by analyzing their PL and TRPL properties at different temperatures. The P1 emission is attributed to the excitons bound to the stacking faults (SFs). The P2 shows an anomalous “S-shaped” emission shift with increasing temperature (T), and the associated mechanism is discussed. The radiative life time ‘τr’ for P2 emission exhibits the T 3/2 dependence at higher temperatures and deviates at lower temperatures whereas the radiative life time ‘τr’ for P1 emission does not show the T 3/2 dependence with temperature. The polarization-dependent PL study reveals that P2 emission involves free holes in the transition at room temperature.
關鍵字
語言英文(美國)
ISSN2159-3930
期刊性質國外
收錄於SCI;
產學合作
通訊作者Jang, Der-Jun
審稿制度
國別美國
公開徵稿
出版型式,電子版
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