A Comprehensive Study Of Temperature-dependent Reflectance And Photoluminescence Of Zn_(1-x)mn_xo Thin Films Grown On C-al_2o_3

D. Y. Lin; H. J. Lin; J. S. Wu; W. C. Chou; C. S. Yang; J. S. Wang

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A Comprehensive Study Of Temperature-dependent Reflectance And Photoluminescence Of Zn_(1-x)mn_xo Thin Films Grown On C-al_2o_3

机译：C-al_2o_3上生长的Zn_（1-x）mn_xo薄膜的温度依赖性反射和光致发光的综合研究

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We present a systematic study of temperature-dependent reflectance (R) and photoluminescence (PL) measurements on ZnMnO films grown by plasma-assisted molecular beam epitaxy. For the first time, the three free-exciton transitions FX_A (Г_(7c)-Г_(7v)~u), FX_B (Г_(7c)-Г_(9v)), and FX_C (Г_(7c)-Г_(7v)~l) and the longitudinal-optical phonon replicas of FX_B and FX_C of ZnMnO films have been clearly observed in the R spectra. The parameters describing the activation energy and the temperature dependence of the transition energy and broadening have been extracted by fitting the experimental R and PL spectra. The spectral data of ZnMnO films not only show the deterioration of crystalline quality with increasing Mn composition fraction but also indicate the Mn clustering caused by Mn atom segregation.

机译：我们目前对等离子辅助分子束外延生长的ZnMnO薄膜的温度依赖性反射率（R）和光致发光（PL）测量进行系统研究。首次出现三个自由激子跃迁FX_A（Г_（7c）-Г_（7v）〜u），FX_B（Г_（7c）-Г_（9v））和FX_C（Г_（7c）-Г_（7v ）-1），并且在R光谱中清楚地观察到了ZnMnO膜的FX_B和FX_C的纵向光学声子复制体。通过拟合实验的R和PL光谱，提取了描述活化能和跃迁能与温度的关系的参数。 ZnMnO薄膜的光谱数据不仅显示出随着Mn组成分数的增加晶体质量的下降，而且表明Mn原子偏析引起的Mn团簇。

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来源
《Journal of Applied Physics》 |2009年第5期|163-170|共8页
作者
D. Y. Lin; H. J. Lin; J. S. Wu; W. C. Chou; C. S. Yang; J. S. Wang;
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Department of Electronic Engineering, National Changhua University of Education, 1 Jin De Road, Paisha Village, Changhua 500, Taiwan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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A Comprehensive Study Of Temperature-dependent Reflectance And Photoluminescence Of Zn_(1-x)mn_xo Thin Films Grown On C-al_2o_3

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