Scanning tunneling microscopy study of organometallic molecules adsorbed on a GaAs(001)-2×4 surface-Reference-Cited by-同舟云学术

Scanning tunneling microscopy study of organometallic molecules adsorbed on a GaAs(001)-2×4 surface

Published:2000-07-01 Issue:4 Volume:18 Page:2072-2076
ISSN:1071-1023
Container-title:Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena
language:en
Short-container-title:

Author:

Kuramochi Hiromi¹,Cui Jie¹,Iwai Hidekazu¹,Ozeki Masashi¹

Affiliation:

1. Joint Research Center for Atom Technology (JRCAT)–Angstrom Technology Partnership (ATP), 1-1-4 Higashi, Tsukuba 305-0046, Japan

Abstract

The interaction of tertiarybutylarsine (TBAs), triisobutylgallium (TiBGa) and trisdimethylaminoarsenic (TDMAAs) with the GaAs(001)-2×4 surface is studied by scanning tunneling microscope. No adsorbates were observed after TBAs exposure at room temperature. In the case of TiBGa and TDMAAs, adsorbates were observed on the As dimer rows. They were adsorbed randomly at low coverage and formed a 4×4 structure at a full monolayer. Weak interaction between molecules and the GaAs surface is expected because the 2×4 structure of the clean surface was kept under the adsorbates.

Publisher

American Vacuum Society

Link

https://pubs.aip.org/avs/jvb/article-pdf/18/4/2072/11292627/2072_1_online.pdf

Reference27 articles.

1. Atomic structure of GaAs(100)-(2×1) and (2×4) reconstructed surfaces

2. Structure of GaAs(001)(2×4)−c(2×8)Determined by Scanning Tunneling Microscopy

3. Surface reconstructions of GaAs(100) observed by scanning tunneling microscopy

4. Structure of GaAs(100)-c(8×2) determined by scanning tunneling microscopy

5. Structure of GaAs(001) surfaces: The role of electrostatic interactions

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