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首页> 外文期刊>Journal of Crystal Growth >Growth and characterization of the CdIn_2S_4/GaAs epilayers by hot wall epitaxy method
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Growth and characterization of the CdIn_2S_4/GaAs epilayers by hot wall epitaxy method

机译:热壁外延法生长和表征CdIn_2S_4 / GaAs外延层

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The high-quality CdIn_2S_4 epilayers on the GaAs(100) substrate were first grown by using the Hot Wall Epitaxy Method. The grown CdIn_2S_4 epilayer was found to be the <110> direction. The optimum growth temperatures of the substrate and the source turned out to be 420℃ and 630℃, respectively. From the measurement of the temperature dependence of the Hall mobility, the scattering at the high-temperature range was mainly related to the acoustic mode of lattice vibration and the scattering at the low-temperature range was most pronounced due to the impurity effect. The temperature dependence of the energy band gap on the CdIn_2S_4/GaAs epilayer obtained from the optical absorption measurement was found to be E_g(T) = 2.7116 eV - (7.65 x 10~(-4) eV/K)T~2/(425 + T).
机译:首先通过热壁外延法在GaAs(100)衬底上生长高质量的CdIn_2S_4外延层。发现生长的CdIn_2S_4外延层是<110>方向。衬底和源的最佳生长温度分别为420℃和630℃。根据霍尔迁移率的温度依赖性的测量,在高温范围内的散射主要与晶格振动的声学模式有关,而在低温范围内的散射由于杂质效应而最明显。由光吸收测量得到的CdIn_2S_4 / GaAs外延层上的能带隙的温度依赖性为E_g(T)= 2.7116 eV-(7.65 x 10〜(-4)eV / K)T〜2 /( 425 + T)。

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