STM/STS measurements have been carried out for TTF-TCNQ complex films evaporated on hydrogen-terminated silicon substrates, and the variation of tunneling spectra has been investigated on morphologically different crystal grains. Very thin semiconductive adsorbed layers were found to cover the as-deposited film surfaces. By removing the adsorbed layers, the intrinsic electronic structures of two different phases were revealed. A 'needle phase' which appears at the early stage of film growth has a semiconductive character and a 'granular phase' which grows later has a metallic character similar to bulk crystals. The electronic structure of the needle phase is considered to be affected by the substrate although the crystallographic structure is similar to the bulk crystal of TTF-TCNQ.
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Masakazu NAKAMURA, Masaaki IIZUKA, Kazuhiro KUDO, Kuniaki TANAKA, "Local Area Characterization of Evaporated TTF-TCNQ Complex Films with Scanning Tunneling Spectroscopy" in IEICE TRANSACTIONS on Electronics,
vol. E85-C, no. 6, pp. 1323-1327, June 2002, doi: .
Abstract: STM/STS measurements have been carried out for TTF-TCNQ complex films evaporated on hydrogen-terminated silicon substrates, and the variation of tunneling spectra has been investigated on morphologically different crystal grains. Very thin semiconductive adsorbed layers were found to cover the as-deposited film surfaces. By removing the adsorbed layers, the intrinsic electronic structures of two different phases were revealed. A 'needle phase' which appears at the early stage of film growth has a semiconductive character and a 'granular phase' which grows later has a metallic character similar to bulk crystals. The electronic structure of the needle phase is considered to be affected by the substrate although the crystallographic structure is similar to the bulk crystal of TTF-TCNQ.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e85-c_6_1323/_p
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@ARTICLE{e85-c_6_1323,
author={Masakazu NAKAMURA, Masaaki IIZUKA, Kazuhiro KUDO, Kuniaki TANAKA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Local Area Characterization of Evaporated TTF-TCNQ Complex Films with Scanning Tunneling Spectroscopy},
year={2002},
volume={E85-C},
number={6},
pages={1323-1327},
abstract={STM/STS measurements have been carried out for TTF-TCNQ complex films evaporated on hydrogen-terminated silicon substrates, and the variation of tunneling spectra has been investigated on morphologically different crystal grains. Very thin semiconductive adsorbed layers were found to cover the as-deposited film surfaces. By removing the adsorbed layers, the intrinsic electronic structures of two different phases were revealed. A 'needle phase' which appears at the early stage of film growth has a semiconductive character and a 'granular phase' which grows later has a metallic character similar to bulk crystals. The electronic structure of the needle phase is considered to be affected by the substrate although the crystallographic structure is similar to the bulk crystal of TTF-TCNQ.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - Local Area Characterization of Evaporated TTF-TCNQ Complex Films with Scanning Tunneling Spectroscopy
T2 - IEICE TRANSACTIONS on Electronics
SP - 1323
EP - 1327
AU - Masakazu NAKAMURA
AU - Masaaki IIZUKA
AU - Kazuhiro KUDO
AU - Kuniaki TANAKA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E85-C
IS - 6
JA - IEICE TRANSACTIONS on Electronics
Y1 - June 2002
AB - STM/STS measurements have been carried out for TTF-TCNQ complex films evaporated on hydrogen-terminated silicon substrates, and the variation of tunneling spectra has been investigated on morphologically different crystal grains. Very thin semiconductive adsorbed layers were found to cover the as-deposited film surfaces. By removing the adsorbed layers, the intrinsic electronic structures of two different phases were revealed. A 'needle phase' which appears at the early stage of film growth has a semiconductive character and a 'granular phase' which grows later has a metallic character similar to bulk crystals. The electronic structure of the needle phase is considered to be affected by the substrate although the crystallographic structure is similar to the bulk crystal of TTF-TCNQ.
ER -