Photocurrent of CdSe nanocrystals on single-walled carbon nanotube-field effect transistor

Seung Yol Jeong; Seong Chu Lim; Dong Jae Bae; Young Hee Lee; Hyun Jin Shin; Seon-Mi Yoon; Jae Young Choi; Ok Hwan Cha; Mun Seok Jeong; David Perello; Minhee Yun

doi:10.1063/1.2944813

Photocurrent of CdSe nanocrystals on single-walled carbon nanotube-field effect transistor

Seung Yol Jeong, Seong Chu Lim, Dong Jae Bae, Young Hee Lee, Hyun Jin Shin, Seon-Mi Yoon, Jae Young Choi, Ok Hwan Cha, Mun Seok Jeong, David Perello, Minhee Yun

Condensed Matter Physics Group

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

Abstract

CdSe nanocrystals (NCs) have been decorated on single-walled carbon nanotubes (SWCNTs) by combining a method of chemically modified substrate along with gate-bias control. CdSe∕ZnS core/shell quantum dots were negatively charged by adding mercaptoacetic acid. The silicon oxide substrate was decorated by octadecyltrichlorosilane and converted to hydrophobic surface. The negatively charged CdSe NCs were adsorbed on the SWCNT surface by applying a negative gate bias. The measured photocurrent clearly demonstrates that CdSe NCs decorated SWCNT can be used for photodetector and solar cell that are operable over a wide range of wavelengths.

Original language	English
Journal	Applied Physics Letters
Volume	92
Issue number	24
DOIs	https://doi.org/10.1063/1.2944813
Publication status	Published - 16 Jun 2008

Keywords

Photoconductivity
Quantum dots
Absorption spectroscopy
Transition metals
Field effect transistors
Conducting polymers
Nanotubes
Nanocrystals

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1063/1.2944813

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title = "Photocurrent of CdSe nanocrystals on single-walled carbon nanotube-field effect transistor",

abstract = "CdSe nanocrystals (NCs) have been decorated on single-walled carbon nanotubes (SWCNTs) by combining a method of chemically modified substrate along with gate-bias control. CdSe∕ZnS core/shell quantum dots were negatively charged by adding mercaptoacetic acid. The silicon oxide substrate was decorated by octadecyltrichlorosilane and converted to hydrophobic surface. The negatively charged CdSe NCs were adsorbed on the SWCNT surface by applying a negative gate bias. The measured photocurrent clearly demonstrates that CdSe NCs decorated SWCNT can be used for photodetector and solar cell that are operable over a wide range of wavelengths.",

keywords = "Photoconductivity, Quantum dots, Absorption spectroscopy, Transition metals, Field effect transistors, Conducting polymers, Nanotubes, Nanocrystals",

author = "Jeong, {Seung Yol} and Lim, {Seong Chu} and Bae, {Dong Jae} and Lee, {Young Hee} and Shin, {Hyun Jin} and Seon-Mi Yoon and Choi, {Jae Young} and Cha, {Ok Hwan} and Jeong, {Mun Seok} and David Perello and Minhee Yun",

year = "2008",

month = jun,

day = "16",

doi = "10.1063/1.2944813",

language = "English",

volume = "92",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Photocurrent of CdSe nanocrystals on single-walled carbon nanotube-field effect transistor

AU - Jeong, Seung Yol

AU - Lim, Seong Chu

AU - Bae, Dong Jae

AU - Lee, Young Hee

AU - Shin, Hyun Jin

AU - Yoon, Seon-Mi

AU - Choi, Jae Young

AU - Cha, Ok Hwan

AU - Jeong, Mun Seok

AU - Perello, David

AU - Yun, Minhee

PY - 2008/6/16

Y1 - 2008/6/16

N2 - CdSe nanocrystals (NCs) have been decorated on single-walled carbon nanotubes (SWCNTs) by combining a method of chemically modified substrate along with gate-bias control. CdSe∕ZnS core/shell quantum dots were negatively charged by adding mercaptoacetic acid. The silicon oxide substrate was decorated by octadecyltrichlorosilane and converted to hydrophobic surface. The negatively charged CdSe NCs were adsorbed on the SWCNT surface by applying a negative gate bias. The measured photocurrent clearly demonstrates that CdSe NCs decorated SWCNT can be used for photodetector and solar cell that are operable over a wide range of wavelengths.

AB - CdSe nanocrystals (NCs) have been decorated on single-walled carbon nanotubes (SWCNTs) by combining a method of chemically modified substrate along with gate-bias control. CdSe∕ZnS core/shell quantum dots were negatively charged by adding mercaptoacetic acid. The silicon oxide substrate was decorated by octadecyltrichlorosilane and converted to hydrophobic surface. The negatively charged CdSe NCs were adsorbed on the SWCNT surface by applying a negative gate bias. The measured photocurrent clearly demonstrates that CdSe NCs decorated SWCNT can be used for photodetector and solar cell that are operable over a wide range of wavelengths.

KW - Photoconductivity

KW - Quantum dots

KW - Absorption spectroscopy

KW - Transition metals

KW - Field effect transistors

KW - Conducting polymers

KW - Nanotubes

KW - Nanocrystals

U2 - 10.1063/1.2944813

DO - 10.1063/1.2944813

M3 - Article

SN - 0003-6951

VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

ER -

Photocurrent of CdSe nanocrystals on single-walled carbon nanotube-field effect transistor

Abstract

Keywords

UN SDGs

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