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Thermal resistance measurement of In 3 SbTe 2 nanowires
Author(s) -
Battaglia J.L.,
Saci A.,
De I.,
Cecchini R.,
Selmo S.,
Fanciulli M.,
Cecchi S.,
Longo M.
Publication year - 2017
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201600500
Subject(s) - nanowire , materials science , thermal , phonon , thermal resistance , substrate (aquarium) , chemical vapor deposition , nanoparticle , nanotechnology , optoelectronics , condensed matter physics , thermodynamics , oceanography , physics , geology
The thermal resistance along the thickness of In 3 SbTe 2 crystalline nanowires was measured using the scanning thermal microscopy in 3 ω mode. The nanowires were grown by metal organic vapor deposition, exploiting the VLS mechanism induced by Au metal‐catalyst nanoparticles and harvested on a SiO 2 /Si substrate. Two nanowires with different thickness (13 and 23 nm) were investigated. The thermal resistance of the nanowires was determined using two different approaches; the first one exploits the experimental data, whereas the second one is more sophisticated, since it involves a minimization procedure. Both methods led to comparable values of the thermal resistance along the transverse direction (thickness) of the nanowire. The obtained results were explained starting from the mean free path of phonons calculated in the In 3 SbTe 2 bulk.