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The Usage of Two Dielectric Function Models
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作者 陈红 沈文忠 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2006年第4期583-590,共8页
This paper presents an overview of the history, modifications, characteristics, and applications of two well known dielectric function models ——the Forouhi-Bloomer model and the Tauc-Lorentz model——which have been... This paper presents an overview of the history, modifications, characteristics, and applications of two well known dielectric function models ——the Forouhi-Bloomer model and the Tauc-Lorentz model——which have been widely used for the extraction and parameterization of optical constants in semiconductors and dielectrics. Based on analysis of their inherent characteristics and comparison via demonstrative examples, deeper and wider usage of the two models is predicted. 展开更多
关键词 dielectric function models optical constants SEMICONDUCTORS
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Ab Initio Calculation of Dielectric Function in Wurtzite GaN Based on Walter's Model
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作者 朱子微 郑纪元 +7 位作者 汪莱 熊兵 孙长征 郝智彪 罗毅 韩彦军 王健 李洪涛 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第3期11-13,共3页
The wavelength-dependent and frequency-dependent dielectric function of wurtzite-GaN is cMculated totally from fundamental parameters such as the lattice constant using Waiter's ab initio model. The errors occurring ... The wavelength-dependent and frequency-dependent dielectric function of wurtzite-GaN is cMculated totally from fundamental parameters such as the lattice constant using Waiter's ab initio model. The errors occurring in the cMculation are carefully reduced by/inear interpolation of energy data. The Kramers-Kronig transform of the real part of greater range is obtained by extrapolation of the reM part. The calculation is time-consuming but meaningful The long-wave results are similar to the experimental data of the photon and are useful for related investigation of properties of wide-gap semiconductors such as electron scattering like the Auger recombination and impact ionization. 展开更多
关键词 GAN Ab Initio Calculation of dielectric function in Wurtzite GaN Based on Walter’s model
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Optical Design and Preparation of High Performance Mo/NiAlN/NiAlON/SiO_2 Solar Selective Absorbing Coating 被引量:1
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作者 LIU Yingfang WANG Cong +5 位作者 SUN Ying WU Yongxin NING Yuping WANG Wenwen ZHANG Yong ZHAO Shuxi 《Journal of the Chinese Ceramic Society》 2015年第4期171-178,共8页
A new solar selective absorbing coating of Mo/NiAlN/NiAlON/SiO_2 multilayer was prepared on stainless steel(SS) substrates by magnetron sputtering for solar thermal power applications. The optical constants and thickn... A new solar selective absorbing coating of Mo/NiAlN/NiAlON/SiO_2 multilayer was prepared on stainless steel(SS) substrates by magnetron sputtering for solar thermal power applications. The optical constants and thickness of individual layers were simulated using the Scout software based on the experimentally measured reflectance and transmittance spectra of individual layers. The coating of Mo/NiAlN/NiAlON/SiO_2 with an ideal solar absorptance(α) of 0.945 in the solar spectrum range was designed via the optical constants of each layer in the Scout software. The Mo/NiAlN/NiAlON/SiO_2 coating was deposited via the optimized layer thickness. A good spectral selectivity with absorptance(α=0.936) and emittance(ε=0.09, T=80 ℃) was obtained. This method, which incorporates the optical simulation with the related experiments, provides a convenient approach to obtain the ideal solar selective absorbing coatings. 展开更多
关键词 optical constants dielectric function models NiAlON solar selective absorbing coating
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