M. Armand, F. Endres, D. R. Macfarlane, H. Ohno, and B. Scrosati, Ionic-liquid materials for the electrochemical challenges of the future, Nat. Mater, vol.8, pp.621-629, 2009.

J. R. Miller and P. Simon, Electrochemical Capacitors for Energy Management, vol.321, pp.651-652, 2008.

B. Wen, J. E. Sader, and J. J. Boland, Mechanical Properties of ZnO Nanowires, Phys. Rev. Lett, vol.101, p.175502, 2008.

X. Wang, Piezoelectric nanogenerators-Harvesting ambient mechanical energy at the nanometer scale, Nano Energy, vol.1, pp.13-24, 2012.

Y. S. Zhou, R. Hinchet, Y. Yang, G. Ardila, R. Sangmuang et al., Nano-Newton Transverse Force Sensor Using a Vertical GaN Nanowire based on the Piezotronic Effect, Adv. Mater, vol.25, 2013.
URL : https://hal.archives-ouvertes.fr/hal-00991575

M. Minary-jolandan, R. A. Bernal, I. Kuljanishvili, V. Parpoil, and H. D. Espinosa, Individual GaN Nanowires Exhibit Strong Piezoelectricity in 3D, Nano Lett, vol.12, pp.970-976, 2012.

M. H. Zhao, Z. L. Wang, and S. X. Mao, Piezoelectric Characterization of Individual Zinc Oxide Nanobelt Probed by Piezoresponse Force Microscope, Nano Lett, vol.4, pp.587-590, 2004.

R. Agrawal and H. D. Espinosa, Giant piezoelectric size effects in zinc oxide and gallium nitride nanowires. A first principles investigation, Nano Lett, vol.11, pp.786-790, 2011.

Z. L. Wang, Piezoelectric nanogenerators based on zinc oxide nanowire arrays, Science, vol.312, pp.242-246, 2006.

Y. F. Lin, J. Song, Y. Ding, S. Y. Lu, and Z. L. Wang, Piezoelectric nanogenerator using CdS nanowires, Appl. Phys. Lett, vol.92, p.22105, 2008.

Y. S. Zhou, W. Han, S. C. Rai, Y. Zhang, Y. Ding et al., Vertically Aligned CdSe Nanowire Arrays for Energy Harvesting and Piezotronic Devices, ACS Nano, vol.6, pp.6478-6482, 2012.

C. Y. Chen, T. H. Liu, Y. Zhou, Y. Zhang, Y. L. Chueh et al., Electricity generation based on vertically aligned PbZr0.2Ti0.8O3 nanowire arrays, Nano Energy, vol.1, pp.424-428, 2012.

Z. Wang, J. Hu, A. P. Suryavanshi, K. Yum, and M. F. Yu, Voltage Generation from Individual BaTiO3 Nanowires under Periodic Tensile Mechanical Load, Nano Lett, vol.10, pp.2966-2969, 2010.

P. G. Kang, T. K. Lee, C. W. Ahn, I. W. Kim, H. H. Lee et al., Vertically aligned epitaxial KNbO 3 nanorod array for piezoelectric energy harvester and second harmonic generator, Nano Energy, vol.17, pp.261-268, 2015.

F. Bernardini, V. Fiorentini, and D. Vanderbilt, Spontaneous polarization and piezoelectric constants of III-V nitrides, Phys. Rev. B, vol.56, p.10024, 1997.

W. S. Su, Y. F. Chen, C. L. Hsiao, and L. W. Tu, Generation of electricity in GaN nanorods induced by piezoelectric effect, Appl. Phys. Lett, vol.90, p.63110, 2007.

N. Gogneau, P. Chrétien, E. Galopin, S. Guilet, L. Travers et al., GaN nanowires for piezoelectric generators, Phys. Status Solidi RRL, vol.8, pp.414-419, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01093504

C. T. Huang, J. Song, C. H. Tsai, W. F. Lee, D. H. Lien et al., Single-InN-Nanowire Nanogenerator with Upto 1 V Output Voltage, Adv. Mater, vol.22, pp.4008-4013, 2010.

C. Chang, V. H. Tran, J. Wang, Y. K. Fuh, and L. Lin, Direct-write piezoelectric polymeric nanogenerator with high energy conversion efficiency, Nano Lett, vol.10, pp.726-731, 2010.

L. Serairi, Elaboration et Conception des Dispositifs de la Récupération D'énergie à base de Nanofils de ZnO et de Microfibres de PVDF-TrFE, 2017.

Y. Duan, Y. Ding, J. Bian, Z. Xu, Z. Yin et al., Ultra-Stretchable Piezoelectric Nanogenerators via Large-Scale Aligned Fractal Inspired Micro/Nanofibers, vol.9, 2017.

X. Chen, S. Xu, N. Yao, and Y. Shi, 1.6 V Nanogenerator for Mechanical Energy Harvesting Using PZT Nanofibers, Nano Lett, vol.10, pp.2133-2137, 2010.
URL : https://hal.archives-ouvertes.fr/hal-00667439

G. A. Zhu, R. S. Yang, S. H. Wang, and Z. L. Wang, Flexible High-Output Nanogenerator Based on Lateral ZnO Nanowire Array, Nano Lett, vol.10, pp.3151-3155, 2010.

G. Zhu, A. C. Wang, Y. Liu, Y. Zhou, and Z. L. Wang, Functional Electrical Stimulation by Nanogenerator with 58 V Output Voltage, Nano Lett, vol.12, pp.3086-3090, 2012.

L. Lin, C. H. Lai, Y. Hu, Y. Zhang, X. Wang et al., High output nanogenerator based on assembly of GaN nanowires, Nanotechnology, vol.22, 2011.

G. Liu, S. Zhao, R. D. Henderson, Z. Leonenko, A. Abdel-raman et al., Nanogenerators based on vertically aligned InN nanowires, Nanoscale, vol.8, pp.2097-2106, 2016.

N. Jamond, P. Chrétien, F. Houzé, L. Travers, J. C. Harmand et al., Piezo-generator integrating a vertical array of GaN nanowires, Nanotechnology, vol.27, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01390969

N. Gogneau, N. Jamond, P. Chrétien, F. Houzé, E. Lefeuvre et al., From single III-nitride nanowires to piezoelectric generators: New route for powering nomad electronics, Semicond. Sci. Technol, vol.31, p.103002, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01390955

L. Largeau, E. Galopin, N. Gogneau, L. Travers, F. Glas et al., Cryst. Growth Des, vol.12, issue.111, pp.2724-2729, 2012.

M. D. Brubaker, I. Levin, A. V. Davydov, D. M. Rourke, N. A. Sanford et al., GaN based nanorods for solid state lighting, J. Appl. Phys, vol.110, p.53506, 2011.

R. Songmuang, O. Landré, and B. Daudin, Molecular beam epitaxy growth and optical properties of AlN nanowires, Appl. Phys. Lett, 2007.

K. A. Bertness, A. Roshko, L. M. Mansfield, T. E. Harvey, and N. A. Sanford, First International Symposium on Growth of Nitrides, J. Cryst. Growth, vol.300, pp.1-262, 2007.

M. Morassi, L. Largeau, F. Oehler, H. Song, L. Travers et al., Morphology Tailoring and Growth Mechanism of Indium-Rich InGaN/GaN Axial Nanowire Heterostructures by Plasma-Assisted Molecular Beam Epitaxy, vol.18, pp.2545-2554, 2018.
URL : https://hal.archives-ouvertes.fr/hal-02385645

L. Largeau, D. L. Dheeraj, M. Tchernycheva, G. E. Cirlin, and J. Harmand, Facet and in-plane crystallographic orientations of GaN nanowires grown on Si(111), Nanotechnology, vol.19, 2008.

N. Gogneau, P. Chrétien, E. Galopin, S. Guilet, L. Travers et al., Impact of the GaN nanowire polarity on energy harvesting, Appl. Phys. Lett, vol.104, p.213105, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01096617

O. Schneegans, P. Chrétien, and F. Houzé, Apparatus for Measuring the Local Electrical Resistance of a Surface, 2011.

G. Jacopin, A. De-luna-bugallo, L. Rigutti, P. Lavenus, F. H. Julien et al., Interplay of the photovoltaic and photoconductive operation modes in visible-blind photodetectors based on axial p-i-n junction GaN nanowires, Appl. Phys. Lett, vol.104, 2014.

N. Jamond, P. Chrétien, L. Gatilova, E. Galopin, L. Travers et al., Energy harvesting efficiency in GaN nanowire-based nanogenerators: the critical influence of the Schottky nanocontact, vol.9, pp.4610-4619, 2017.
URL : https://hal.archives-ouvertes.fr/hal-01501840

J. Liu, P. Fei, J. Song, X. Wang, C. Lao et al., Carrier Density and Schottky Barrier on the Performance of DC Nanogenerator, Nano Lett, vol.8, pp.328-332, 2008.

S. S. Lin, J. H. Song, Y. F. Lu, and Z. L. Wang, Identifying individual n-and p-type ZnO nanowires by the output voltage sign of piezoelectric nanogenerator, Nanotechnology, vol.20, p.365703, 2009.

X. Xu, A. Potié, R. Songmuang, J. W. Lee, B. Bercu et al., An improved AFM cross-sectional method for piezoelectric nanostructures properties investigation: Application to GaN nanowires, Nanotechnology, vol.22, 2011.
URL : https://hal.archives-ouvertes.fr/hal-01003143

Y. Gao and Z. L. Wang, Electrostatic Potential in a Bent Piezoelectric Nanowire. The Fundamental Theory of Nanogenerator and Nanopiezotronics, Nano Lett, vol.7, pp.2499-2505, 2007.

B. Perea-garcia, J. Zuniga-perez, V. Munoz-sanjose, J. Colchero, and E. Palacios-lidon, Formation and Rupture of Schottky Nanocontacts on ZnO Nanocolumns, Nano Lett, vol.7, pp.1505-1511, 2007.

J. Donald, Engineering Analysis of Smart Material Systems

. Wiley-interscience, , p.124, 2007.

M. P. Lu, J. Song, M. Y. Lu, M. T. Chen, Y. Gao et al., Piezoelectric Nanogenerator Using p-Type ZnO Nanowire Arrays, Nano Lett, vol.9, pp.1223-1227, 2009.

T. T. Akeuchi, H. A. Mano, and I. A. Kasaki, Theoretical Study of Orientation Dependence of Piezoelectric Effects in Wurtzite Strained GaInN/GaN Heterostructures and Quantum Wells, Jpn. J. Appl. Phys, vol.39, p.413, 2000.

G. D. Smit, S. Rogge, and T. M. Klapwijk, Scaling of nano-Schottky-diodes, Appl. Phys. Lett, vol.81, 2002.

G. D. Smit, S. Rogge, and T. M. Klapwijk, Enhanced tunneling across nanometer-scale metal-semiconductor interfaces, Appl. Phys. Lett, vol.80, 2002.

K. L. Johnson, Contact Mechanics, 1989.

, NSM Archive-Physical Properties of Semiconductors, p.24, 2018.

R. A. Bernal, R. Agrawal, B. Peng, K. A. Bertness, N. A. Sanford et al., Effect of Growth Orientation and Diameter on the Elasticity of GaN Nanowires. A Combined in Situ TEM and Atomistic Modeling Investigation, Nano Lett, vol.11, pp.548-555, 2011.

Y. Lu, C. Hsieh, S. Gwo, M. T. Hou, J. Yao et al., An investigation of the Young's modulus of single-crystalline wurtzite indium nitride using an atomic force microscopy based micromechanical bending test, Appl. Phys. Lett, vol.101, 2012.

H. Koc, E. Deligöz, and A. M. Mamedov, The elastic, electronic, and optical properties of PtSi and PtGe compounds, Philos. Mag. A, vol.91, pp.3093-3107, 2011.

F. Glas and B. Daudin, Stress-driven island growth on top of nanowires, Phys. Rev. B, vol.86, p.174112, 2012.

B. Gil, Low-Dimensional Nitride Semiconductors, 2002.

B. S. Simpkins, M. A. Mastro, C. R. Eddy, . Jr, and P. E. Pehrsson, Surface depletion effects in semiconducting nanowires, J. Appl. Phys, vol.103, 2008.

P. Tchoulfian, F. Donatini, F. Levy, A. Dussaigne, P. Ferret et al., Direct Imaging of p-n Junction in Core-Shell GaN Wires, Nano Lett, vol.14, pp.3491-3498, 2014.
URL : https://hal.archives-ouvertes.fr/hal-00999730

R. Calarco, T. Stoica, O. Brandt, and L. Geelhaar, Surface-induced effects in GaN nanowires, J. Mater. Res, vol.26, pp.2157-2168, 2011.