Temperature dependence of excitonic emission in cubic CdSe thin film

標題:	Temperature dependence of excitonic emission in cubic CdSe thin film
作者:	Chia, C. H. Yuan, C. T. Ku, J. T. Yang, S. L. Chou, W. C. Juang, J. Y. Hsieh, S. Y. Chiu, K. C. Hsu, J. S. Jeng, S. Y. 電子物理學系 Department of Electrophysics
關鍵字:	photoluminescence;cadmium selenide;temperature dependence;thin film;exciton-phonon interaction;Exciton binding energy
公開日期:	1-Jan-2008
摘要:	A detailed photoluminescence investigation of the thermal redshift and broadening of the excitonic line of cubic CdSe film grown by molecular beam epitaxy is presented. Free excitonic emission from the cubic Use film was observed at low temperature. Temperature-dependent measurement was performed to obtain material parameters related to exciton-phonon interaction by fitting the experimental data to the phenomenological model. The relative contribution of both acoustic and optical phonon to the band gap shrinkage and exciton linewidth broadening are discussed. Exciton binding energy of 16 +/- 1.5 meV was determined from the Arrhenius analysis. (C) 2007 Elsevier B.V. All rights reserved.
URI:	http://dx.doi.org/10.1016/j.jlumin.2007.06.003 http://hdl.handle.net/11536/9919
ISSN:	0022-2313
DOI:	10.1016/j.jlumin.2007.06.003
期刊:	JOURNAL OF LUMINESCENCE
Volume:	128
Issue:	1
起始頁:	123
結束頁:	128
Appears in Collections:	Articles

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