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Surface Photovoltage on Si(111)-(7x7) Probed by Optically-Pumped Scanning Tunneling Microscopy.

机译：光泵浦扫描隧道显微镜探测si（111） - （7x7）表面光电压。

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Scanning Tunneling Microscopy is combined with optical excitation techniques to probe spatially-resolved, non-equilibrium electronic transport processes at the Si(111)-(7x7) surface. Photo-excited carriers separate in the sub-surface space-charge region, producing a surface photovoltage which is detected using the STM tip as a potentiometer. While the photovoltage is uniform on well-ordered regions of Si(111)-(7x7), strong decreases are observed near virtually all defects. Differences in the functional dependence of the photovoltage on the illumination intensity are also observed. The spatial dependence of the photovoltage primarily results from spatial variations in the local surface recombination rate. (jes)

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作者
Hamers, R. J.; Markert, K.;
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年度 1990
页码 1-28
总页数 28
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Defects(Materials); Electron transport; Excitation; Illumination; Intensity; Methodology; Microscopy; Optical pumping; Optics; Photovoltaic effect; Potentiometers; Rates; Recombination reactions; Regions; Scanning; Space charge; Spatial distribution; Subsurface; Surfaces; Transport properties; Tunneling; Silicon; Scanning tunneling microscopy;

机译：缺陷（材料）;电子传输;激发;照明;强度;方法;显微镜;光学泵浦;光学;光伏效应;电位计;速率;重组反应;区域;扫描;空间电荷;空间分布;次表面;表面;传输特性;隧道;硅;扫描隧道显微镜;

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专利

1. The role of adsorbed alkali metal atoms in the enhancement of surface reactivity: A scanning tunneling microscopy study of low coverage K/Si(111)7x7 surfaces [J] . Gorelik D., Eitle J., Meyler D., The Journal of Chemical Physics . 1998,第23期

机译：吸附的碱金属原子在增强表面反应性中的作用：低覆盖率K / Si（111）7x7表面的扫描隧道显微镜研究
2. Adsorbed Si on the Si(111)-(7x7) surface studied by scanning tunneling microscopic and molecular-orbital approaches: Stationary and diffusing Si adsorbates - art. no. 161316 [J] . Uchida H., Watanabe S., Kuramochi H., Physical Review, B. Condensed Matter . 2002,第16期

机译：通过扫描隧道显微镜和分子轨道方法研究了Si（111）-（7x7）表面上吸附的Si：固定和扩散Si吸附物-艺术。没有。 161316
3. Adsorbed Si on the Si(111)-(7x7) surface studied by scanning tunneling microscopic and molecular-orbital approaches: Stationary and diffusing Si adsorbates - art. no. 161316 [J] . Uchida H., Watanabe S., Kuramochi H., Physical Review, B. Condensed Matter . 2002,第16期

机译：通过扫描隧道显微镜和分子轨道方法研究了Si（111）-（7x7）表面上吸附的Si：固定和扩散Si吸附物-艺术。没有。 161316
4. Surface magnetization of Si(111)-7x7 probed by SHG [C] . Takanori Suzuki, Kazutaka Noguchi, Motowo Tsukakoshi, Conference on Nonlinear Optics Jul 28-Aug 2, 2002 null . 2002

机译：SHG探测Si（111）-7x7的表面磁化强度
5. Development of an ultra high vacuum scanning tunneling microscope. Scanning tunneling microscopy study of silicon(111) and germanium(111) surfaces etching under bromine exposure [D] . Fouchier, Marc 2000

机译：超高真空扫描隧道显微镜的开发。溴暴露下硅（111）和锗（111）表面蚀刻的扫描隧道显微镜研究
6. Covalent immobilization of native biomolecules onto Au(111) via N-hydroxysuccinimide ester functionalized self-assembled monolayers for scanning probe microscopy. [O] . P Wagner, M Hegner, P Kernen, 1996

机译：天然生物分子通过N-羟基琥珀酰亚胺酯官能化的自组装单层共价固定在Au（111）上用于扫描探针显微镜。
7. Solid Phase Epitaxy on Si Surfaces Studied by Scanning Tunneling Microscopy. Scanning-Tunneling-Microscopy Observations of Ge Solid-Phase Epitaxy on Si(111). [O] . Hiroki HIBINO, Toshio OGINO 1995

机译：通过扫描隧穿显微镜研究的Si表面上的固相外延。扫描 - 隧道显微镜观察Ge固相外延对Si（111）。

Surface Photovoltage on Si(111)-(7x7) Probed by Optically-Pumped Scanning Tunneling Microscopy.

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