ZnO nanotips and nanorods on carbon nanotube/Si substrates: Anomalous p-type like optical properties of undoped ZnO nanotips

Seung Sik Park; Jin Moo Lee; Sung Jin Kim; Sang Woo Kim; Min Su Yi; Sang Hyeob Kim; Sunglyul Maeng; Shizuo Fujita

doi:10.1088/0957-4484/19/24/245708

ZnO nanotips and nanorods on carbon nanotube/Si substrates: Anomalous p-type like optical properties of undoped ZnO nanotips

Seung Sik Park, Jin Moo Lee, Sung Jin Kim, Sang Woo Kim, Min Su Yi, Sang Hyeob Kim, Sunglyul Maeng, Shizuo Fujita

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

ZnO nanotips and nanorods were grown on screen-printed multi-walled carbon nanotube (MWCNT) films via thermal chemical vapor deposition at relative low growth temperatures of 400 and 500°C. Uniform formation of ZnO nanotips and nanorods occurred on MWCNT-printed Si substrates, but were rarely observed on bare Si substrates at the same growth temperatures. In photoluminescence (PL) measurements, it was found that ZnO nanorods exhibit typical intrinsic optical properties, while ZnO nanotips revealed p-type like luminescence behavior. Acceptor-related emission bands originating from neutral acceptor-bound exciton, free-to-acceptor and donor-acceptor pair transitions are clearly observed in temperature-dependent PL spectra of ZnO nanotips.

Original language	English
Article number	245708
Journal	Nanotechnology
Volume	19
Issue number	24
DOIs	https://doi.org/10.1088/0957-4484/19/24/245708
Publication status	Published - 2008 Jun 18

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/19/24/245708

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title = "ZnO nanotips and nanorods on carbon nanotube/Si substrates: Anomalous p-type like optical properties of undoped ZnO nanotips",

abstract = "ZnO nanotips and nanorods were grown on screen-printed multi-walled carbon nanotube (MWCNT) films via thermal chemical vapor deposition at relative low growth temperatures of 400 and 500°C. Uniform formation of ZnO nanotips and nanorods occurred on MWCNT-printed Si substrates, but were rarely observed on bare Si substrates at the same growth temperatures. In photoluminescence (PL) measurements, it was found that ZnO nanorods exhibit typical intrinsic optical properties, while ZnO nanotips revealed p-type like luminescence behavior. Acceptor-related emission bands originating from neutral acceptor-bound exciton, free-to-acceptor and donor-acceptor pair transitions are clearly observed in temperature-dependent PL spectra of ZnO nanotips.",

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doi = "10.1088/0957-4484/19/24/245708",

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journal = "Nanotechnology",

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T1 - ZnO nanotips and nanorods on carbon nanotube/Si substrates

T2 - Anomalous p-type like optical properties of undoped ZnO nanotips

AU - Park, Seung Sik

AU - Lee, Jin Moo

AU - Kim, Sung Jin

AU - Kim, Sang Woo

AU - Yi, Min Su

AU - Kim, Sang Hyeob

AU - Maeng, Sunglyul

AU - Fujita, Shizuo

PY - 2008/6/18

Y1 - 2008/6/18

N2 - ZnO nanotips and nanorods were grown on screen-printed multi-walled carbon nanotube (MWCNT) films via thermal chemical vapor deposition at relative low growth temperatures of 400 and 500°C. Uniform formation of ZnO nanotips and nanorods occurred on MWCNT-printed Si substrates, but were rarely observed on bare Si substrates at the same growth temperatures. In photoluminescence (PL) measurements, it was found that ZnO nanorods exhibit typical intrinsic optical properties, while ZnO nanotips revealed p-type like luminescence behavior. Acceptor-related emission bands originating from neutral acceptor-bound exciton, free-to-acceptor and donor-acceptor pair transitions are clearly observed in temperature-dependent PL spectra of ZnO nanotips.

AB - ZnO nanotips and nanorods were grown on screen-printed multi-walled carbon nanotube (MWCNT) films via thermal chemical vapor deposition at relative low growth temperatures of 400 and 500°C. Uniform formation of ZnO nanotips and nanorods occurred on MWCNT-printed Si substrates, but were rarely observed on bare Si substrates at the same growth temperatures. In photoluminescence (PL) measurements, it was found that ZnO nanorods exhibit typical intrinsic optical properties, while ZnO nanotips revealed p-type like luminescence behavior. Acceptor-related emission bands originating from neutral acceptor-bound exciton, free-to-acceptor and donor-acceptor pair transitions are clearly observed in temperature-dependent PL spectra of ZnO nanotips.

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ZnO nanotips and nanorods on carbon nanotube/Si substrates: Anomalous p-type like optical properties of undoped ZnO nanotips

Abstract

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