Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy

Avijit Kumar; Suresh Kumar C. Palanisamy; Jelmer M. Boter; Chris Hellenthal; Johan E. ten Elshof; Harold J.W. Zandvliet

doi:10.1016/j.apsusc.2012.10.169

Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy

Avijit Kumar^*, Suresh Kumar C. Palanisamy, Jelmer M. Boter, Chris Hellenthal, Johan E. ten Elshof, Harold J.W. Zandvliet

^*Corresponding author for this work

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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.

Original language	English
Pages (from-to)	201-204
Number of pages	4
Journal	Applied surface science
Volume	265
DOIs	https://doi.org/10.1016/j.apsusc.2012.10.169
Publication status	Published - 2013

Keywords

2023 OA procedure

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10.1016/j.apsusc.2012.10.169

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title = "Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy",

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 = "2023 OA procedure",

author = "Avijit Kumar and {Kumar C. Palanisamy}, Suresh and Boter, {Jelmer M.} and Chris Hellenthal and {ten Elshof}, {Johan E.} and Zandvliet, {Harold J.W.}",

year = "2013",

doi = "10.1016/j.apsusc.2012.10.169",

language = "English",

volume = "265",

pages = "201--204",

journal = "Applied surface science",

issn = "0169-4332",

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TY - JOUR

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

AU - Kumar, Avijit

AU - Kumar C. Palanisamy, Suresh

AU - Boter, Jelmer M.

AU - Hellenthal, Chris

AU - ten Elshof, Johan E.

AU - Zandvliet, Harold 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 - 2023 OA procedure

U2 - 10.1016/j.apsusc.2012.10.169

DO - 10.1016/j.apsusc.2012.10.169

M3 - Article

SN - 0169-4332

VL - 265

SP - 201

EP - 204

JO - Applied surface science

JF - Applied surface science

ER -

Imaging of Ti0.87O2 nanosheets using Scanning Tunneling Spectroscopy

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Keywords

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