教師資料查詢 | 類別: 期刊論文 | 教師: 杜昭宏 Chao-hung Du (瀏覽個人網頁)

標題:Absorption-edge anisotropy of Cu2ZnSiQ4 (Q=S, Se) quaternary compound semiconductors
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出版(發表)日期2011/04/01
作品名稱Absorption-edge anisotropy of Cu2ZnSiQ4 (Q=S, Se) quaternary compound semiconductors
作品名稱(其他語言)
著者Levcencoa, S.; Dumcencoa, D.; Huang, Y. S.; Arushanov, E.; Tezlevan, V.; Tiong, K. K.; Du, C. H.
單位淡江大學物理學系
出版者Amsterdam: Elsevier BV
著錄名稱、卷期、頁數Journal of Alloys and Compounds 509(15), pp.4924–4928
摘要Polarization-dependent absorption characterization of Cu2ZnSiQ4 (Q = S, Se) quaternary single crystal compound semiconductors were carried out in the temperature range of 10–300 K. The absorption measurements were performed on the as grown basal plane with the normal along [2 1 0] and the axis c parallel to the long edge of the crystal platelet. A significant shift towards lower energy was observed in the absorption spectra of E⊥c polarization with respect to those corresponding to E⊥c polarization. A comprehensive analysis of the absorption spectra revealed that the absorption edges of the studied crystals are indirect allowed transitions. A schematic representation of the plausible assignments for the observed near band edge optical transitions for Cu2ZnSiQ4 was proposed. The variation of the indirect transition energies with temperature were analyzed by Varshni and Bose–Einstein expressions. The parameters that describe the temperature dependence of the indirect transition energies with different polarizations were evaluated and discussed.
關鍵字Semiconductors; Optical properties; Optical spectroscopy
語言英文
ISSN0925-8388
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收錄於SCI
產學合作
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國別荷蘭
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