| 更精确地利用光谱自然确定禁带宽度 |
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| 引用本文： | 刘昶时. 更精确地利用光谱自然确定禁带宽度[J]. 光电工程, 2011, 38(4): 48-53. DOI: 10.3969/j.issn.1003-501X.2011.04.009 |
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| 作者姓名： | 刘昶时 |
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| 作者单位： | 嘉兴学院,南湖学院,数理信息工程系,浙江,嘉兴,314001 |
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| 摘 要： | 以建立在能量守恒定律得到的塔克(Tauc)关系为出发点,推算出一个三参数方程用来以光谱实验数据获得更加精确和可靠的材料的禁带宽度.禁带宽度Eg、材料性质指数n及取决于跃迁种类的常量A自然而然地以参数形式出现在这个参数方程中.于是当对实验数据进行最小二乘方非线性拟合后,就能得到表征材料特性的关键指标禁带宽度Eg、材料性质...
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| 关 键 词： | 禁带宽度 光谱 自然的方法 非线性拟合 |
More Precise Determination of Band Gap via Optical Spectra Using Natural Way |
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| LIU Chang-shi. More Precise Determination of Band Gap via Optical Spectra Using Natural Way[J]. Opto-Electronic Engineering, 2011, 38(4): 48-53. DOI: 10.3969/j.issn.1003-501X.2011.04.009 |
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| Authors: | LIU Chang-shi |
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| Affiliation: | LIU Chang-shi(Department of Mathematics,Physics and Information Engineering,Nanhu College,Jiaxing College,Jiaxing 314001,Zhejiang Province,China) |
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| Abstract: | Based on Tauc relation produced by energy conservation,one model with three parameters is developed to determinate band gap,Eg,by optical spectroscopy more precisely and reliably.Band gap,the index n stand for the nature and useful diagnostic A of material appear as parameter in this natural method.Thus,when non-linear fitting in the direction of least-square is finished,these key label Eg,n and A can be obtained accurately and reliably.Application results of model described above demonstrate that this meth... |
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| Keywords: | band gap optical spectra natural way non-linear fitting |
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