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首页> 外文期刊>Physica status solidi >Investigation of arsenic-doped ZnO thin films grown on Si substrate by atmospheric-pressure metal-organic chemical vapor deposition
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Investigation of arsenic-doped ZnO thin films grown on Si substrate by atmospheric-pressure metal-organic chemical vapor deposition

机译:大气压金属有机化学气相沉积法在Si衬底上生长掺砷ZnO薄膜的研究

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摘要

Zinc oxide (ZnO) thin film was grown on semi-insulating Si substrate using arsine (AsH_3) as precursor by atmospheric-pressure metal-organic chemical vapor deposition (AP-MOCVD). In recently reported results, the physical mechanisms for As-doped ZnO thin films are explained as As substitution for oxygen (As_o) or As substitution for Zn and As combined with two Zn vacancies (As_(zn)-2V_(zn)). In this study, we control the in situ annealing ambient into two environments with various temperatures, which are Zn-rich, using diethylzinc (DEZn) as ambient gas, and O-rich, using water vapor as ambient gas, respectively. This should help to create As_o and As_(zn)-2V_(zn). The ZnO thin film after in situ thermal annealing with H_2O vapor ambient at 550 and 750 ℃show p-type conductivity with hole concentration of 2.651×10~(17) and 1.782 × 10~(18) cm~(-3), Hall mobilities of 10.08 and 5.402 cm~2/Vs, and resistivities of 2.368 and 0.6485 Ω cm, respectively.
机译:通过大气压金属有机化学气相沉积(AP-MOCVD),以a(AsH_3)为前驱体在半绝缘Si衬底上生长氧化锌(ZnO)薄膜。在最近报道的结果中,将掺杂As的ZnO薄膜的物理机理解释为用As替代氧(As_o)或用As替代Zn和As结合两个锌空位(As_(zn)-2V_(zn))。在这项研究中,我们将原位退火环境控制为两个温度不同的环境,分别使用二乙基锌(DEZn)作为环境气体和富氧,使用水蒸气作为环境气体来富锌。这应该有助于创建As_o和As_(zn)-2V_(zn)。在550和750℃的H_2O蒸气环境下原位热退火后的ZnO薄膜呈现p型导电性,空穴浓度为2.651×10〜(17)和1.782×10〜(18)cm〜(-3),Hall迁移率分别为10.08和5.402 cm〜2 / Vs,电阻率分别为2.368和0.6485Ωcm。

著录项

  • 来源
    《Physica status solidi》 |2012年第6期|p.1053-1058|共6页
  • 作者单位

    Optical Science Center, National Central University, Jhong-Li 320, Taiwan;

    Department of Electronic Engineering, College of Electrical Engineering and Computer Science, Chung-Yuan Christian University, Chung-Li 32023, Taiwan;

    Department of Electronic Engineering, College of Electrical Engineering and Computer Science, Chung-Yuan Christian University, Chung-Li 32023, Taiwan,Institute of Nuclear Energy Research Atomic Energy Council, Longtan, Taoyuan 32546, Taiwan;

    Institute of Nuclear Energy Research Atomic Energy Council, Longtan, Taoyuan 32546, Taiwan;

    Department of Electronic Engineering, College of Electrical Engineering and Computer Science, Chung-Yuan Christian University, Chung-Li 32023, Taiwan;

    Department of Photonics, National Chiao Tung University, Hsinchu 300, Taiwan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    annealing; doping; MOCVD; zinc oxide;

    机译:退火;掺杂MOCVD;氧化锌;

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