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Title: Single-electron tunneling in a single PbS nanocrystal nucleated on 11-mercaptoundecanoic acid self-assembled monolayer at room temperature

Abstract

Nanometer-sized PbS particles in the size of about 3 nm produced by exposing a self-assembled monolayer of 11-mercaptoundecanoic acid salts on gold (111) substrate in a H{sub 2}S atmosphere were studied by scanning tunneling microscopy (STM) and high-resolution transmission electron microscopy at room temperature in air. The stability of thus-obtained PbS nanoparticles makes STM imaging possible and repeatable scans of the semiconductor nanoparticles were performed. The current-voltage (I--V) characteristics of a single PbS nanoparticle exhibited clearly Coulomb blockade and Coulomb staircase. Furthermore, by varying the gap between a STM tip and the PbS nanoparticle, we also verified the dependence of staircase width on the change of the gap in the local I--V characteristics on the same PbS nanoparticle. The phenomena can be well described by a semi-classical double-barrier tunneling model. {copyright} 2001 American Institute of Physics.

Authors:
; ;
Publication Date:
Sponsoring Org.:
(US)
OSTI Identifier:
40230576
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 90; Journal Issue: 4; Other Information: DOI: 10.1063/1.1382827; Othernumber: JAPIAU000090000004002039000001; 060115JAP; PBD: 15 Aug 2001; Journal ID: ISSN 0021-8979
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AIR; GOLD; PHYSICS; SCANNING TUNNELING MICROSCOPY; STABILITY; SUBSTRATES; TRANSMISSION ELECTRON MICROSCOPY; TUNNELING

Citation Formats

Jiang, Peng, Liu, Zhong-Fan, and Cai, Sheng-Min. Single-electron tunneling in a single PbS nanocrystal nucleated on 11-mercaptoundecanoic acid self-assembled monolayer at room temperature. United States: N. p., 2001. Web. doi:10.1063/1.1382827.
Jiang, Peng, Liu, Zhong-Fan, & Cai, Sheng-Min. Single-electron tunneling in a single PbS nanocrystal nucleated on 11-mercaptoundecanoic acid self-assembled monolayer at room temperature. United States. doi:10.1063/1.1382827.
Jiang, Peng, Liu, Zhong-Fan, and Cai, Sheng-Min. Wed . "Single-electron tunneling in a single PbS nanocrystal nucleated on 11-mercaptoundecanoic acid self-assembled monolayer at room temperature". United States. doi:10.1063/1.1382827.
@article{osti_40230576,
title = {Single-electron tunneling in a single PbS nanocrystal nucleated on 11-mercaptoundecanoic acid self-assembled monolayer at room temperature},
author = {Jiang, Peng and Liu, Zhong-Fan and Cai, Sheng-Min},
abstractNote = {Nanometer-sized PbS particles in the size of about 3 nm produced by exposing a self-assembled monolayer of 11-mercaptoundecanoic acid salts on gold (111) substrate in a H{sub 2}S atmosphere were studied by scanning tunneling microscopy (STM) and high-resolution transmission electron microscopy at room temperature in air. The stability of thus-obtained PbS nanoparticles makes STM imaging possible and repeatable scans of the semiconductor nanoparticles were performed. The current-voltage (I--V) characteristics of a single PbS nanoparticle exhibited clearly Coulomb blockade and Coulomb staircase. Furthermore, by varying the gap between a STM tip and the PbS nanoparticle, we also verified the dependence of staircase width on the change of the gap in the local I--V characteristics on the same PbS nanoparticle. The phenomena can be well described by a semi-classical double-barrier tunneling model. {copyright} 2001 American Institute of Physics.},
doi = {10.1063/1.1382827},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 4,
volume = 90,
place = {United States},
year = {2001},
month = {8}
}