RT Journal Article T1 Field emission properties of gallium oxide micro- and nanostructures in the scanning electron microscope A1 López, Iñaki A1 Nogales Díaz, Emilio A1 Hidalgo Alcalde, Pedro A1 Méndez Martín, Bianchi A1 Piqueras de Noriega, Javier AB The field emission properties of gallium oxide nanowires grown by thermal evaporation-deposition have been investigated inside the chamber of a scanning electron microscope. Turn on electric fields and enhancement factors have been determined for Sn doped nanowires. X-ray photoelectron spectroscopy measurements have been performed to calculate the work function of Sn doped Ga2O3. The results show improved field emission properties of Sn doped Ga2O3 nanowires, with a lower threshold field (below 1.0 V/mu m). The obtained values are competitive with those achieved in other nanostructured materials, including carbon nanotubes. PB Wiley-V C H Verlag GMBH SN 1862-6300 YR 2012 FD 2012-01 LK https://hdl.handle.net/20.500.14352/44078 UL https://hdl.handle.net/20.500.14352/44078 LA eng NO [1] N. S. Xu and S. E. Huq, Mater. Sci. Eng. R 48, 47 (2005).[2] J. Zhou, S. Z. Deng, N. S. Xu, J. Chen, and J. C. She, Appl. Phys. Lett. 83, 2653 (2003).[3] J. Liu, Z. Zhang, Y. Zhao, X. Su, S. Liu, and E. Wang, Small 1, 310 (2003).[4] Y. T. Lin, C. Y. Chen, C. P. Hsiung, K. W. Chang, and J. Y. Gan, Appl. Phys. Lett. 89, 063123 (2006).[5] X. Wang, J. Zhou, C. Lao, J. Song, N. Xu, and Z. L. Wang, Adv. Mater. 19, 1627 (2007).[6] J. Lin, Y. Huang, Y. Bando, C. Yang, C. Li, and D. Goldberg, ACS Nano 4, 2452 (2010).[7] E. Nogales, J. A. Garcı´a, B. Me´ndez, and J. Piqueras, J. Appl. Phys. 101, 033517 (2007).[8] E. Nogales, B. Méndez, and J. Piqueras, Nanotechnology 19, 035713 (2008).[9] E. Nogales, J. A. García, B. Me´ndez, and J. Piqueras, Appl. Phys. Lett. 91, 133108 (2007).[10] Y. Huang, S. Yue, Z. Wang, Q. Wang, C. Shi, Z. Xu, X. D. Bai, C. Tang, and C. Gu, J. Phys. Chem. B 110, 796 (2006).[11] J. Zhan, Y. Bando, J. Hu, Y. Li, and D. Goldberg, Chem. Mater. 16, 5158 (2004).[12] Y. Huang, Z. Wang, Q. Wang, C. Gu, C. Tang, Y. Bando, and D. Goldberg, J. Phys. Chem. C 113, 1980 (2009).[13] C. Cao, Z. Chen, X. An, and H. Zhu, J. Phys. Chem. C 112, 95 (2008).[14] Y. Bayam, V. J. Logeeswaran, A. M. Katzenmeyer, R. J. Chacon, M. C. Wong, C. E. Hunt, and M. Saif Islam, Proceedings 8th IEEE Conference on Nanotechnology (IEEE, Piscataway, NJ, USA, 2008), pp. 573–575.[15] G. Sinha, A. Datta, S. K. Panda, P. G. Chavan, M. A. More, D. S. Joag, and A. Patra, J. Phys. D 42, 185409 (2009).[16] E. Nogales, B. Me´ndez, and J. Piqueras, Appl. Phys. Lett. 86, 113112 (2005).[17] E. Nogales, B. Me´ndez, J. Piqueras, and J. A. García, Nanotechnology 21, 115201 (2009).[18] L. Binet and D. Gourier, J. Phys. Chem. Solids 59, 1241 (1998).[19] M. Orita, H. Ohta, M. Hirano, and H. Hosono, Appl. Phys. Lett. 77, 4166 (2000).[20] T. Minami, T. Miyata, and T. Yamamoto, Surf. Coat. Technol. 108–109, 583 (1998).[21] J. Robertson and B. Falabretti, Mater. Sci. Eng. B 135, 267 (2006).[22] D. Y. Zhong, G. Y. Zhang, S. Liu, T. Sakurai, and E. G. Wang, Appl. Phys. Lett. 80, 506 (2002).[23] J. M. Bonard, K. A. Dean, B. F. Coll, and C. Klinke, Phys Rev. Lett. 89, 197602 (2002). NO © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.This work has been supported by MICINN (Projects MAT 2009-07882 and Consolider Ingenio CSD 2009-00013) and by BSCH-UCM (Project GR35-10A-910146). The authors are grateful to Dr Luca Gregoratti at the Sincrotrone Trieste for useful advises on XPS measurements. NO MICINN NO BSCH-UCM DS Docta Complutense RD 4 may 2024