Search: onr:"swepub:oai:DiVA.org:liu-140521" >
Thermal conductivit...
Thermal conductivity of bulk GaN grown by HVPE: Effect of Si doping
-
- Slomski, Michael (author)
- North Carolina State University, USA
-
- Paskov, Plamen (author)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten,North Carolina State University, USA
-
- Leach, Jacob H. (author)
- Kyma Technology Inc, USA
-
show more...
-
- Muth, John F. (author)
- North Carolina State University, USA
-
- Paskova, Tania (author)
- North Carolina State University, USA
-
show less...
-
(creator_code:org_t)
- 2017-02-06
- 2017
- English.
-
In: Physica status solidi. B, Basic research. - : WILEY-V C H VERLAG GMBH. - 0370-1972 .- 1521-3951. ; 254:8
- Related links:
-
https://rss.onlineli...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The thermal conductivity of bulk GaN grown by Hydride Phase Vapor Epitaxy with intentional Si doping was measured using the 3 method. The effect of Si concentration ranging from 1.6x10(16) to 7x10(18)cm(-3) on the thermal conductivity was studied over the temperature range of 295-470K. The room temperature thermal conductivity was found to decrease with increasing Si doping from 245 to 210W/m.K. Also, for each Si doped sample the thermal conductivity decreases with increasing temperature. The experimental data were analysed by a modified Callaway model and the contribution of different resistive phonon scattering process was examined. It was found that in n-type GaN the phonon-free-electron scattering became an important resistive process that leads to a reduction of the thermal conductivity at high temperatures. At the highest free electron concentrations, electronic thermal conduction was found to play a role in addition to lattice thermal conduction and compete with the effects of phonon-free-electron scattering. (C) 2017 WILEY-VCH Verlag GmbH amp; Co. KGaA, Weinheim
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- GaN; HVPE growth; Si doping; thermal conductivity
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database