Density Functional Modeling of Defects and Impurities in Silicon Materials
Density Functional Modeling of Defects and Impurities in Silicon Materials
复制标题
硅材料中缺陷和杂质的密度泛函建模
DOI:
10.1007/978-4-431-55800-2_2
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
J. Coutinho
中科院分区:
文献类型:
--
作者:
J. Coutinho
This is a contribution targeted for early scientists, from both academia and industry, providing the grounds for defect modeling in silicon materials using density functional methods. It starts with a revision of the theoretical framework and tools, including relevant approximations such as the treatment of the exchange-correlation interactions and the use of pseudopotentials. It then describes how to step up from total energies, electron densities and Kohn-Sham states to the actual defect observables. Particular emphasis is given to the calculation of spectroscopic observables such as electrical levels, local vibrational modes, spin densities, migration barriers, and defect response to uniaxial stress. Each of these techniques is accompanied by examples of defect calculations. It is shown how these results can be crucial in unraveling a detailed picture of many complexes, including substitutional and interstitial impurities, dopants, transition metals, carbon, oxygen or hydrogen. In the last section we take a look at some developments in modeling defects in silicon nanostructures. While holding promising optical and magnetic properties, nano-silicon presents many challenges, particularly with regard to defect control, doping and electrical transport.
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影响因子:
44.1
作者:
Freysoldt, Christoph;Grabowski, Blazej;Van de Walle, Chris G.
通讯作者:
Van de Walle, Chris G.
影响因子:
4
作者:
Leonard S
通讯作者:
Leonard S
影响因子:
4
作者:
Markevich, V. P.;Leonard, S.;Coutinho, J.
通讯作者:
Coutinho, J.
影响因子:
3.7
作者:
Coutinho J
通讯作者:
Coutinho J