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- Title
Heat Dissipation in Flexible Nitride Nanowire Light-Emitting Diodes.
- Authors
Guan, Nan; Amador-Mendez, Nuño; Kunti, Arup; Babichev, Andrey; Das, Subrata; Kapoor, Akanksha; Gogneau, Noëlle; Eymery, Joël; Julien, François Henri; Durand, Christophe; Tchernycheva, Maria
- Abstract
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.
- Subjects
LIGHT emitting diodes; NANOWIRES; NITRIDES; VAPOR-plating; HEAT sinks; THERMAL resistance
- Publication
Nanomaterials (2079-4991), 2020, Vol 10, Issue 11, p2271
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano10112271