Electrical levels in nickel doped silicon
Electrical levels in nickel doped silicon
复制标题
镍掺杂硅中的电能级
DOI:
10.1063/1.4901003
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发表时间:
2014
影响因子:
3.2
通讯作者:
J. Weber
中科院分区:
文献类型:
--
作者:
L. Scheffler;V. Kolkovsky;J. Weber
Deep Level Transient Spectroscopy (DLTS) reveals three electrical levels of substitutional nickel in silicon at EC – 0.07 eV, EC – 0.45 eV, and EV + 0.16 eV. A number of additional DLTS peaks are observed after hydrogenation of the samples. We identify different NiHx -complexes with x = 1, 2, and 3. NiH introduces a single acceptor and a single donor state at about EC – 0.17 eV and EV + 0.49 eV into the band gap of silicon. NiH2 and NiH3 are shown to have a single acceptor state at EV + 0.58 eV and EV + 0.46 eV, respectively. In addition to the electrically active NiHx-complexes, a total passivation of the electrical activity of nickel by hydrogen is observed.