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Valence band offset and Schottky barrier at amorphous boron and boron carbide interfaces with silicon and copper

机译:非晶硼和碳化硼与硅和铜的界面处的价带偏移和肖特基势垒

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摘要

In order to understand the fundamental charge transport in a-B:H and a-BX:H (X=C, N, P) compound heterostructure devices, X-ray photoelectron spectroscopy has been utilized to determine the valence band offset and Schottky barrier present at amorphous boron compound interfaces formed with (100) Si and polished poly-crystalline Cu substrates. For interfaces formed by plasma enhanced chemical vapor deposition of a-B_(4-5)C:H on (100) Si, relatively small valence band offsets of 0.2 ± 0.2 eV were determined. For a-B:H/Cu interfaces, a more significant Schottky barrier of 0.8 ± 0.16 eV was measured. These results are in contrast to those observed for a-BN:H and BP where more significant band discontinuities (>1-2 eV) were observed for interfaces with Si and Cu.
机译:为了了解aB:H和a-BX:H(X = C,N,P)复合异质结构器件中的基本电荷传输,已利用X射线光电子能谱确定存在于其中的价带偏移和肖特基势垒与(100)Si和抛光的多晶Cu衬底形成的非晶硼化合物界面。对于通过等离子增强的化学气相沉积在(100)Si上形成a-B_(4-5)C:H形成的界面,确定了0.2±0.2 eV的相对较小的价带偏移。对于a-B:H / Cu界面,测得的肖特基势垒更为明显,为0.8±0.16 eV。这些结果与a-BN:H和BP观察到的结果相反,在a-BN:H和BP中,与Si和Cu的界面观察到更显着的谱带不连续性(> 1-2 eV)。

著录项

  • 来源
    《Applied Surface Science》 |2013年第ptab期|545-551|共7页
  • 作者单位

    Logic Technology Development, Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, OR 97124, USA;

    Logic Technology Development, Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, OR 97124, USA;

    Logic Technology Development, Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, OR 97124, USA;

    Ocotillo Materials Laboratory, Intel Corporation, 4500 S. Dobson Road, Chandler, AZ 85248, USA;

    Logic Technology Development, Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, OR 97124, USA;

    Logic Technology Development, Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, OR 97124, USA;

    Logic Technology Development, Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, OR 97124, USA;

    Logic Technology Development, Intel Corporation, 5200 NE Elam Young Parkway, Hillsboro, OR 97124, USA;

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

    Boron; Carbide; XPS; Valence band offset; Amorphous;

    机译:硼;碳化物;XPS;价带偏移;非晶态;

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