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Piezophototronic effect enhanced luminescence of zinc oxide nanowires

Yan Zhang, Lijie Li Orcid Logo

Nano Energy, Volume: 22, Pages: 533 - 538

Swansea University Author: Lijie Li Orcid Logo

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DOI (Published version): 10.1016/j.nanoen.2016.02.039

Abstract

Experimental findings on electroluminescence or photoluminescence of ZnO nanowires have been drawn much attention due to their promising applications in many areas. One of the current challenges on this technology is a deeper understanding of this phenomenon in order to adopt it into practical devic...

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Published in: Nano Energy
ISSN: 2211-2855
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa26511
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first_indexed 2016-02-26T02:00:11Z
last_indexed 2020-10-27T03:36:26Z
id cronfa26511
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spelling 2020-10-26T13:39:10.4374310 v2 26511 2016-02-25 Piezophototronic effect enhanced luminescence of zinc oxide nanowires ed2c658b77679a28e4c1dcf95af06bd6 0000-0003-4630-7692 Lijie Li Lijie Li true false 2016-02-25 EEEG Experimental findings on electroluminescence or photoluminescence of ZnO nanowires have been drawn much attention due to their promising applications in many areas. One of the current challenges on this technology is a deeper understanding of this phenomenon in order to adopt it into practical device designs. In this work, a theoretical analysis of the stimulated emission of ZnO nanowires taking into consideration of the piezotronics effect has been conducted using the quantum mechanics theory. It is revealed that extra piezoelectric charges induced by applied mechanical forces increase the overall charge density of the nanowire, subsequently enhancing the emission intensity. Electronic bandgap varying with the diameter of the nanowire determines the peak value in the electromagnetic spectrum. Both wavelength and intensity of the stimulated emission can be tuned by controlling the dimension of the nanowires and external applied mechanical forces. Journal Article Nano Energy 22 533 538 2211-2855 30 4 2016 2016-04-30 10.1016/j.nanoen.2016.02.039 COLLEGE NANME Electronic and Electrical Engineering COLLEGE CODE EEEG Swansea University 2020-10-26T13:39:10.4374310 2016-02-25T15:55:45.2198688 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering Yan Zhang 1 Lijie Li 0000-0003-4630-7692 2 0026511-21032016142632.pdf ZhangPiezophotronicEffect2016AM.pdf 2016-03-21T14:26:32.8930000 Output 1123000 application/pdf Accepted Manuscript true 2017-02-24T00:00:00.0000000 true
title Piezophototronic effect enhanced luminescence of zinc oxide nanowires
spellingShingle Piezophototronic effect enhanced luminescence of zinc oxide nanowires
Lijie Li
title_short Piezophototronic effect enhanced luminescence of zinc oxide nanowires
title_full Piezophototronic effect enhanced luminescence of zinc oxide nanowires
title_fullStr Piezophototronic effect enhanced luminescence of zinc oxide nanowires
title_full_unstemmed Piezophototronic effect enhanced luminescence of zinc oxide nanowires
title_sort Piezophototronic effect enhanced luminescence of zinc oxide nanowires
author_id_str_mv ed2c658b77679a28e4c1dcf95af06bd6
author_id_fullname_str_mv ed2c658b77679a28e4c1dcf95af06bd6_***_Lijie Li
author Lijie Li
author2 Yan Zhang
Lijie Li
format Journal article
container_title Nano Energy
container_volume 22
container_start_page 533
publishDate 2016
institution Swansea University
issn 2211-2855
doi_str_mv 10.1016/j.nanoen.2016.02.039
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Electronic and Electrical Engineering
document_store_str 1
active_str 0
description Experimental findings on electroluminescence or photoluminescence of ZnO nanowires have been drawn much attention due to their promising applications in many areas. One of the current challenges on this technology is a deeper understanding of this phenomenon in order to adopt it into practical device designs. In this work, a theoretical analysis of the stimulated emission of ZnO nanowires taking into consideration of the piezotronics effect has been conducted using the quantum mechanics theory. It is revealed that extra piezoelectric charges induced by applied mechanical forces increase the overall charge density of the nanowire, subsequently enhancing the emission intensity. Electronic bandgap varying with the diameter of the nanowire determines the peak value in the electromagnetic spectrum. Both wavelength and intensity of the stimulated emission can be tuned by controlling the dimension of the nanowires and external applied mechanical forces.
published_date 2016-04-30T03:31:49Z
_version_ 1763751293746151424
score 11.016258

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