Plasmon-exciton interactions in hybrid structures of Au nanohemispheres and CdS nanowires for improved photoconductive devices

Abbas I. Maaroof; Hyungwoo Lee; Kwang Heo; June Park; Duckhyung Cho; Byung Yang Lee; Maeng Je Seong; Seunghun Hong

doi:10.1021/jp407446s

Plasmon-exciton interactions in hybrid structures of Au nanohemispheres and CdS nanowires for improved photoconductive devices

Abbas I. Maaroof, Hyungwoo Lee, Kwang Heo, June Park, Duckhyung Cho, Byung Yang Lee, Maeng Je Seong, Seunghun Hong

School of Mechanical Engineering

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

6 Citations (Scopus)

Abstract

We developed a method to prepare photoconductive channels of hybrid nanostructures based on Au nanohemispheres (Au NHs) and cadmium sulfide nanowires (CdS NWs) for photoconductive applications. The hybrid nanostructures exhibited enhanced absorbance, which was attributed to the strong electronic coupling between plasmons in Au NHs and excitons in CdS NWs. The photoconductive channels based on the hybrid nanostructures showed an increase in photocurrent level by ∼5× compared to bare CdS NWs. Because our strategy can be utilized to improve the photoconductivity of quite versatile photoconductive channels, it can be a powerful method for the development of various advanced optoelectronic and photovoltaic devices.

Original language	English
Pages (from-to)	24543-24548
Number of pages	6
Journal	Journal of Physical Chemistry C
Volume	117
Issue number	46
DOIs	https://doi.org/10.1021/jp407446s
Publication status	Published - 2013 Nov 21

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

UN SDGs

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

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10.1021/jp407446s

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title = "Plasmon-exciton interactions in hybrid structures of Au nanohemispheres and CdS nanowires for improved photoconductive devices",

abstract = "We developed a method to prepare photoconductive channels of hybrid nanostructures based on Au nanohemispheres (Au NHs) and cadmium sulfide nanowires (CdS NWs) for photoconductive applications. The hybrid nanostructures exhibited enhanced absorbance, which was attributed to the strong electronic coupling between plasmons in Au NHs and excitons in CdS NWs. The photoconductive channels based on the hybrid nanostructures showed an increase in photocurrent level by ∼5× compared to bare CdS NWs. Because our strategy can be utilized to improve the photoconductivity of quite versatile photoconductive channels, it can be a powerful method for the development of various advanced optoelectronic and photovoltaic devices.",

author = "Maaroof, {Abbas I.} and Hyungwoo Lee and Kwang Heo and June Park and Duckhyung Cho and Lee, {Byung Yang} and Seong, {Maeng Je} and Seunghun Hong",

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T1 - Plasmon-exciton interactions in hybrid structures of Au nanohemispheres and CdS nanowires for improved photoconductive devices

AU - Maaroof, Abbas I.

AU - Lee, Hyungwoo

AU - Heo, Kwang

AU - Park, June

AU - Cho, Duckhyung

AU - Lee, Byung Yang

AU - Seong, Maeng Je

AU - Hong, Seunghun

PY - 2013/11/21

Y1 - 2013/11/21

N2 - We developed a method to prepare photoconductive channels of hybrid nanostructures based on Au nanohemispheres (Au NHs) and cadmium sulfide nanowires (CdS NWs) for photoconductive applications. The hybrid nanostructures exhibited enhanced absorbance, which was attributed to the strong electronic coupling between plasmons in Au NHs and excitons in CdS NWs. The photoconductive channels based on the hybrid nanostructures showed an increase in photocurrent level by ∼5× compared to bare CdS NWs. Because our strategy can be utilized to improve the photoconductivity of quite versatile photoconductive channels, it can be a powerful method for the development of various advanced optoelectronic and photovoltaic devices.

AB - We developed a method to prepare photoconductive channels of hybrid nanostructures based on Au nanohemispheres (Au NHs) and cadmium sulfide nanowires (CdS NWs) for photoconductive applications. The hybrid nanostructures exhibited enhanced absorbance, which was attributed to the strong electronic coupling between plasmons in Au NHs and excitons in CdS NWs. The photoconductive channels based on the hybrid nanostructures showed an increase in photocurrent level by ∼5× compared to bare CdS NWs. Because our strategy can be utilized to improve the photoconductivity of quite versatile photoconductive channels, it can be a powerful method for the development of various advanced optoelectronic and photovoltaic devices.

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Plasmon-exciton interactions in hybrid structures of Au nanohemispheres and CdS nanowires for improved photoconductive devices

Abstract

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