On the role of piezoelectricity in phonon properties and thermal conductivity of GaN nanofilms

Chung, 2010, Transferable GaN layers grown on ZnO-coated graphene layers for optoelectronic devices, Science, 330, 655, 10.1126/science.1195403 Nazari, 2015, Self-heating profile in an AlGaN/GaN heterojunction field-effect transistor studied by ultraviolet and visible micro-Raman spectroscopy, IEEE Trans. Electron Devices, 62, 1467, 10.1109/TED.2015.2414718 Huang, 2002, Gallium nitride nanowire nanodevices, Nano Lett., 2, 101, 10.1021/nl015667d Gradečak, 2005, GaN nanowire lasers with low lasing thresholds, Appl. Phys. Lett., 87, 10.1063/1.2115087 Kuo, 2010, Effect of P-type last barrier on efficiency droop of blue ingan light-emitting diodes, IEEE J. Quantum Electron., 46, 1214, 10.1109/JQE.2010.2045104 Xu, 2016, Heat transport in low-dimensional materials: A review and perspective, Theor. Appl. Mech. Lett., 6, 113, 10.1016/j.taml.2016.04.002 Yu, 2016, Recent advances on thermal analysis of stretchable electronics, Theor. Appl. Mech. Lett., 6, 32, 10.1016/j.taml.2015.12.001 Sichel, 1977, Thermal conductivity of GaN, 25-360K, J. Phys. Chem. Solids, 38, 330, 10.1016/0022-3697(77)90112-3 Guthy, 2008, Unusually low thermal conductivity of gallium nitride nanowires, J. Appl. Phys., 103, 10.1063/1.2894907 Slack, 1973, Nonmetallic crystals with high thermal conductivity, J. Phys. Chem. Solids, 34, 321, 10.1016/0022-3697(73)90092-9 AlShaikhi, 2010, Theory of the lattice thermal conductivity in bulk and films of GaN, Phys. Rev. B, 81, 10.1103/PhysRevB.81.195320 Zou, 2010, Lattice thermal conductivity of freestanding gallium nitride nanowires, J. Appl. Phys., 108, 10.1063/1.3463358 Zhou, 2012, Phonon thermal conductivity of GaN nanotubes, J. Appl. Phys., 112, 10.1063/1.4736421 Jung, 2012, Thermal and mechanical response of [0001] -oriented GaN nanowires during tensile loading and unloading, J. Appl. Phys., 112, 10.1063/1.4759282 Lindsay, 2012, Thermal conductivity and large isotope effect in GaN from first principles, Phys. Rev. Lett., 109, 10.1103/PhysRevLett.109.095901 Sahoo, 2012, Effect of piezoelectric polarization on phonon group velocity in nitride wurtzites, J. Mater. Sci., 47, 2624, 10.1007/s10853-011-6087-2 Sahoo, 2014, Effect of macroscopic polarization on thermal conductivity of InN, J. Alloys Compd., 603, 217, 10.1016/j.jallcom.2014.03.168 Balandin, 1998, Significant decrease of the lattice thermal conductivity due to phonon confinement in a free-standing semiconductor quantum well, Phys. Rev. B, 58, 1544, 10.1103/PhysRevB.58.1544 Zhu, 2014, Influence of prestress fields on ther phonon thermal conductivity of GaN nanostructures, ASME J. Heat Transfer, 36 Zhu, 2016, Phonon properties and thermal conductivity of GaN nanofilm under prestress and surface/interface stress, J. Alloys Compd., 685, 619, 10.1016/j.jallcom.2016.05.314 Martin, 2009, Impact of phonon-surface roughness scattering on thermal conductivity of thin Si nanowires, Phys. Rev. Lett., 102, 10.1103/PhysRevLett.102.125503 Łepkowski, 2005, Nonlinear elasticity in III-N compounds: Ab initio calculations, Phys. Rev. B, 72, 10.1103/PhysRevB.72.245201 Łepkowski, 2011, Ab initio study of elastic constants in InxGa1−xN and InxAl1−xN wurtzite alloys, Phys. Rev. B, 83, 10.1103/PhysRevB.83.203201