Metallic conduction behavior in selenium-hyperdoped silicon
Metallic conduction behavior in selenium-hyperdoped silicon
复制标题
硒超掺杂硅中的金属导电行为
DOI:
10.1016/j.mssp.2013.09.001
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发表时间:
2014
影响因子:
4.1
通讯作者:
Lou, Shishu
中科院分区:
文献类型:
--
作者:
Han, Peide;Liang, Peng;Xing, Yupeng;Lou, Shishu
Hall measurements at 80–300 K are performed on crystalline silicon doped with selenium exceeding the equilibrium solid solubility limit using ion implantation combined with furnace annealing. The temperature dependence of free carrier density and sheet conductivity of the Se doping layer changes with implantation dose. Metallic conduction behavior is well observed in the sample doped with selenium to be 7.4×1020/cm3. The overlapping between Se impurity states below Si conduction band might give a microscopic explanation.
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