The lead selenide photoconductive sensitization via oxygen ion implantation with enhanced optical absorption and carrier mobility
作者: Hao YangXiaojiang LiTing MeiJianbang Zheng
作者单位: 1Northwestern Polytechnical University
刊名: Journal of Materials Science, 2017, Vol.52 (18), pp.10779-10786
来源数据库: Springer Nature Journal
DOI: 10.1007/s10853-017-1255-7
英文摘要: We demonstrate a lead selenide material sensitization method using O+ beam implantation at 50 keV. A nano-polycrystalline material with ~29 nm grain size is synthesized, which is completely different with the currently diffused material in submicron scale. This nano-material exhibits high carrier mobility and optical absorption with an Urbach energy as low as 29.5 meV, indicating a well-ordered microstructure. The responsivity of up to ~2 A/W at 4 μm is achieved for sample with implantation dose of 1 × 1018 cm−2. It is revealed that the high responsivity may be attributed to the high optical absorption and carrier mobility.
原始语种摘要: We demonstrate a lead selenide material sensitization method using O+ beam implantation at 50 keV. A nano-polycrystalline material with ~29 nm grain size is synthesized, which is completely different with the currently diffused material in submicron scale. This nano-material exhibits high carrier mobility and optical absorption with an Urbach energy as low as 29.5 meV, indicating a well-ordered microstructure. The responsivity of up to ~2 A/W at 4 μm is achieved for sample with implantation dose of 1 × 1018 cm−2. It is revealed that the high responsivity may be attributed to the high optical absorption and carrier mobility.
全文获取路径: Springer Nature  (合作)
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来源刊物:
影响因子:2.163 (2012)

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关键词翻译
关键词翻译
  • selenide 硒化物
  • mobility 活动性
  • carrier 载体
  • absorption 吸收
  • optical 光学的
  • submicron 亚微米
  • ordered 有序的
  • responsivity 响应度
  • attributed 属性
  • sensitization 激活