Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy

Avijit Kumar, S.K. Chinnasamy Palanisamy, J.M. Boter, Chris Hellenthal, Johan E. ten Elshof, Henricus J.W. Zandvliet

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)

Abstract

We report scanning tunneling microscopy (STM) and spectroscopy (STS) measurements on single layer Ti0.87O2 nanosheets deposited on Pt(200 nm)/Si substrates. These nanosheets have a band gap of 3.8 eV and are virtually invisible in conventional STM images. However, an impressive contrast is observed in the di/dz map, which allows for a clear identification of the nanosheets. The di/dz signal is obtained by adding a high frequency, small amplitude modulation to the z-piezo using a lock-in amplifier.
Original languageUndefined
Pages (from-to)201-204
Number of pages4
JournalApplied surface science
Volume265
DOIs
Publication statusPublished - 2013

Keywords

  • METIS-295992
  • IR-89917

Cite this

Kumar, Avijit ; Chinnasamy Palanisamy, S.K. ; Boter, J.M. ; Hellenthal, Chris ; ten Elshof, Johan E. ; Zandvliet, Henricus J.W. / Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy. In: Applied surface science. 2013 ; Vol. 265. pp. 201-204.
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abstract = "We report scanning tunneling microscopy (STM) and spectroscopy (STS) measurements on single layer Ti0.87O2 nanosheets deposited on Pt(200 nm)/Si substrates. These nanosheets have a band gap of 3.8 eV and are virtually invisible in conventional STM images. However, an impressive contrast is observed in the di/dz map, which allows for a clear identification of the nanosheets. The di/dz signal is obtained by adding a high frequency, small amplitude modulation to the z-piezo using a lock-in amplifier.",
keywords = "METIS-295992, IR-89917",
author = "Avijit Kumar and {Chinnasamy Palanisamy}, S.K. and J.M. Boter and Chris Hellenthal and {ten Elshof}, {Johan E.} and Zandvliet, {Henricus J.W.}",
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Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy. / Kumar, Avijit; Chinnasamy Palanisamy, S.K.; Boter, J.M.; Hellenthal, Chris; ten Elshof, Johan E.; Zandvliet, Henricus J.W.

In: Applied surface science, Vol. 265, 2013, p. 201-204.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy

AU - Kumar, Avijit

AU - Chinnasamy Palanisamy, S.K.

AU - Boter, J.M.

AU - Hellenthal, Chris

AU - ten Elshof, Johan E.

AU - Zandvliet, Henricus J.W.

PY - 2013

Y1 - 2013

N2 - We report scanning tunneling microscopy (STM) and spectroscopy (STS) measurements on single layer Ti0.87O2 nanosheets deposited on Pt(200 nm)/Si substrates. These nanosheets have a band gap of 3.8 eV and are virtually invisible in conventional STM images. However, an impressive contrast is observed in the di/dz map, which allows for a clear identification of the nanosheets. The di/dz signal is obtained by adding a high frequency, small amplitude modulation to the z-piezo using a lock-in amplifier.

AB - We report scanning tunneling microscopy (STM) and spectroscopy (STS) measurements on single layer Ti0.87O2 nanosheets deposited on Pt(200 nm)/Si substrates. These nanosheets have a band gap of 3.8 eV and are virtually invisible in conventional STM images. However, an impressive contrast is observed in the di/dz map, which allows for a clear identification of the nanosheets. The di/dz signal is obtained by adding a high frequency, small amplitude modulation to the z-piezo using a lock-in amplifier.

KW - METIS-295992

KW - IR-89917

U2 - 10.1016/j.apsusc.2012.10.169

DO - 10.1016/j.apsusc.2012.10.169

M3 - Article

VL - 265

SP - 201

EP - 204

JO - Applied surface science

JF - Applied surface science

SN - 0169-4332

ER -