Structural control of photoconductive CdSe nanostructures through a Bi-assisted VLS process

Kwang Heo; Hyungwoo Lee; Taewan Kim; Byung Yang Lee

doi:10.1016/j.matlet.2016.06.103

Structural control of photoconductive CdSe nanostructures through a Bi-assisted VLS process

Kwang Heo, Hyungwoo Lee, Taewan Kim, Byung Yang Lee

School of Mechanical Engineering

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

6 Citations (Scopus)

Abstract

We report a method to grow structurally-controlled CdSe nanostructures by adopting Bi-mixed CdSe powder source to a catalyst-assisted chemical vapor deposition. Using this method, we synthesized Bi-doped CdSe nanocrystals with different shapes, such as nanocrystal film, nano-bumpy film, nanobelts, and nanowires. We fabricated a photodetector and a field-effect device using Bi-doped CdSe nanowires with high responsivity to white light. These results will offer a wide range of application possibilities in optoelectronic devices using CdSe nanostructures.

Original language	English
Pages (from-to)	129-133
Number of pages	5
Journal	Materials Letters
Volume	182
DOIs	https://doi.org/10.1016/j.matlet.2016.06.103
Publication status	Published - 2016 Nov 1

Keywords

Cadmium selenide
Chemical vapor deposition
Nanostructure
Photodetector

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{714333c4cebd4080a12fa62988f11f65,

title = "Structural control of photoconductive CdSe nanostructures through a Bi-assisted VLS process",

abstract = "We report a method to grow structurally-controlled CdSe nanostructures by adopting Bi-mixed CdSe powder source to a catalyst-assisted chemical vapor deposition. Using this method, we synthesized Bi-doped CdSe nanocrystals with different shapes, such as nanocrystal film, nano-bumpy film, nanobelts, and nanowires. We fabricated a photodetector and a field-effect device using Bi-doped CdSe nanowires with high responsivity to white light. These results will offer a wide range of application possibilities in optoelectronic devices using CdSe nanostructures.",

keywords = "Cadmium selenide, Chemical vapor deposition, Nanostructure, Photodetector",

author = "Kwang Heo and Hyungwoo Lee and Taewan Kim and Lee, {Byung Yang}",

note = "Funding Information: This work was supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Korea government Ministry of Trade, Industry & Energy (No. 20154030200630 ). BYL acknowledges the financial support from the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT & Future Planning as Global Frontier Project ( CISS-2011-0031866 ) and the National Research Foundation (NRF) funded by the Korea government (MSIP) (No: 2015R1A2A2A04002733 ). HK acknowledges the support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2016R1C1B1013516 ). ",

year = "2016",

month = nov,

day = "1",

doi = "10.1016/j.matlet.2016.06.103",

language = "English",

volume = "182",

pages = "129--133",

journal = "Materials Letters",

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publisher = "Elsevier",

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T1 - Structural control of photoconductive CdSe nanostructures through a Bi-assisted VLS process

AU - Heo, Kwang

AU - Lee, Hyungwoo

AU - Kim, Taewan

AU - Lee, Byung Yang

N1 - Funding Information: This work was supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Korea government Ministry of Trade, Industry & Energy (No. 20154030200630 ). BYL acknowledges the financial support from the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT & Future Planning as Global Frontier Project ( CISS-2011-0031866 ) and the National Research Foundation (NRF) funded by the Korea government (MSIP) (No: 2015R1A2A2A04002733 ). HK acknowledges the support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2016R1C1B1013516 ).

PY - 2016/11/1

Y1 - 2016/11/1

N2 - We report a method to grow structurally-controlled CdSe nanostructures by adopting Bi-mixed CdSe powder source to a catalyst-assisted chemical vapor deposition. Using this method, we synthesized Bi-doped CdSe nanocrystals with different shapes, such as nanocrystal film, nano-bumpy film, nanobelts, and nanowires. We fabricated a photodetector and a field-effect device using Bi-doped CdSe nanowires with high responsivity to white light. These results will offer a wide range of application possibilities in optoelectronic devices using CdSe nanostructures.

AB - We report a method to grow structurally-controlled CdSe nanostructures by adopting Bi-mixed CdSe powder source to a catalyst-assisted chemical vapor deposition. Using this method, we synthesized Bi-doped CdSe nanocrystals with different shapes, such as nanocrystal film, nano-bumpy film, nanobelts, and nanowires. We fabricated a photodetector and a field-effect device using Bi-doped CdSe nanowires with high responsivity to white light. These results will offer a wide range of application possibilities in optoelectronic devices using CdSe nanostructures.

KW - Cadmium selenide

KW - Chemical vapor deposition

KW - Nanostructure

KW - Photodetector

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JO - Materials Letters

JF - Materials Letters

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