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@ARTICLE{Mikulics:828150,
author = {Mikulics, Martin and Kordoš, P. and Fox, A. and Kočan, M.
and Lüth, H. and Sofer, Z. and Hardtdegen, H.},
title = {{E}fficient heat dissipation in {A}l{G}a{N}/{G}a{N}
heterostructure grown on silver substrate},
journal = {Applied materials today},
volume = {7},
issn = {2352-9407},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2017-02120},
pages = {134 - 137},
year = {2017},
abstract = {In this paper, we present the investigation of AlGaN/GaN
heterostructures deposited on metallic/silversubstrates by a
novel “combined” two-step epitaxial procedure based on
metalorganic vapor phase epi-taxy (MOVPE) and molecular beam
epitaxy (MBE). The channel temperature was determined by
highlateral and spectral resolution Raman spectroscopy. The
characteristics of the structures were comparedto those of
conventional AlGaN/GaN layers deposited on sapphire. An
improved heat dissipation in themetal substrate based HFETs
leads to a significant decrease in channel temperature
$(−60\%$ at 7 W/mm)and affects the long-term stability of
the drain current $(±2\%)$ favorably in the whole range
under inves-tigation (up to ∼1000 h). Metallic substrates
are a viable solution toward highly reliable
high-powerdevices and are beneficial to low power
electronics as well, where the high integration density also
callsfor efficient heat dissipation.},
cin = {PGI-9},
cid = {I:(DE-Juel1)PGI-9-20110106},
pnm = {521 - Controlling Electron Charge-Based Phenomena
(POF3-521)},
pid = {G:(DE-HGF)POF3-521},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000405594100013},
doi = {10.1016/j.apmt.2017.02.008},
url = {https://juser.fz-juelich.de/record/828150},
}