Heat Dissipation in Flexible Nitride Nanowire Light-Emitting Diodes.
InGaN
LED
mechanical flexibility
nanowire
self-heating
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
16 Nov 2020
16 Nov 2020
Historique:
received:
15
10
2020
revised:
10
11
2020
accepted:
12
11
2020
entrez:
19
11
2020
pubmed:
20
11
2020
medline:
20
11
2020
Statut:
epublish
Résumé
We analyze the thermal behavior of a flexible nanowire (NW) light-emitting diode (LED) operated under different injection conditions. The LED is based on metal-organic vapor-phase deposition (MOCVD)-grown self-assembled InGaN/GaN NWs in a polydimethylsiloxane (PDMS) matrix. Despite the poor thermal conductivity of the polymer, active nitride NWs effectively dissipate heat to the substrate. Therefore, the flexible LED mounted on a copper heat sink can operate under high injection without significant overheating, while the device mounted on a plastic holder showed a 25% higher temperature for the same injected current. The efficiency of the heat dissipation by nitride NWs was further confirmed with finite-element modeling of the temperature distribution in a NW/polymer composite membrane.
Identifiants
pubmed: 33207755
pii: nano10112271
doi: 10.3390/nano10112271
pmc: PMC7696961
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : European Research Council
ID : 639052
Pays : International
Organisme : H2020 Marie Skłodowska-Curie Actions
ID : 722176
Organisme : Indo-French Centre for the Promotion of Advanced Research
ID : 6008-1
Organisme : undefined <span style="color:gray;font-size:10px;">undefined</span>
ID : Labex Ganex ANR-11-LABX-0014
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