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Resonant photoemission spectroscopy of gamma irradiated VO2 films

  • I.G. Madiba (a1) (a2) (a3) (a4), A. Braun (a4), N. Émond (a5), M. Chaker (a5), S.I. Tadadjeu (a6), B.S. Khanyile (a1) (a3) and M. Maaza (a1) (a3)...


Vanadium dioxide thin films are considered as smart functional coatings for thermal shielding, and are attractive as a passive thermal shield for spacecrafts. In space they would, however, be subjected to bombardment by interstellar dust particles and electromagnetic radiation. Materials subjected to irradiation will suffer damages induced by the displacement cascades initiated by nuclear reaction. Such cosmic radiation can severely impact the structure and function of materials. To study this effect in the laboratory, we have deposited VO2 films on silicon wafers and exposed them to γ-radiation of doses up to 100 kGy by using a 60Co nuklid source with 1.17 and 1.33 MeV photon energy. We anticipate that the γ-radiation causes local structural perturbations which can amount to defects with a corresponding change in electronic structure and thermal shielding property. We report on the photo emission spectroscopy of gamma irradiated VO2 thin films.


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1.Benkahoul, M., Chaker, M., Margot, J., Haddad, E., Kruzelecky, R., Wong, B., Jamroz, W., Poinas, P., Sol. Energy Mater. Sol. Cells 95, 3504 (2011).
2.Haddad, E., Kruzelecky, R., Wong, B., Jamroz, W., Soltani, M., Chaker, M., Poinas, P., Benkahoul, M., SAE Inc. 1, 2575 (2009).
3.Eyert, V.., Ann. Phys. 11, 650 (2002).
4.Petrov, G.I., Yakovlev, V.V., Squier, J.A., Opt. Lett. 27, 655 (2002).
5.Cavalleri, A., Toth, C., Siders, C.W., Squier, J.A., Raski, F., Forget, P., Kieffer, J.C., Phys. Rev. Lett. 87, 237401 (2001).
6.Morin, F.J., Phys. Rev. Lett. 3, 34 (1959)
7.Maaza, M., Hamid, D., Simo, A., Kerdja, T., Chaudhary, A. K., Kana Kana, J. B., Opt. Commun. 285, 1193 (2012).
8.Maaza, M., Simo, S., Itani, B.D., Kana Kana, J.B., Harti, E.L., Boziane, K., Saboungi, M.L., Doyle, T.B., Lukyanchuk, L., J. Nanopart. Res 16, 2397 (2014).
9.Holbert, K.E., Radiation Effects on Materials: Displacement Damage lectures from Nuclear Concepts for the 21st Century course Arizona State University∼holbert/eee460/RadiationEffectsDamage.pdf (2006).
10.Doyle, B.L., Displacement Damage Caused by Gamma-rays and Neutrons on Au and Se, SANDIA Report (2014).
11.Kwon, J., Motta, A.T., Ann.Nuc. Energy 27, 1627 (2000).
12.Kinchin, G.H., Pease, R.S., Rep. Prog. Phys. 18, 1 (1955).
13.Thompson, D.A., Radiat. Eff 56, 105 (1981).
14.Holmes-Siedle, A.G., Adams, L, Handbook of Radiation Effects, Oxford, New York, Oxford University Press (1993).
15.Case, F.C., Vac, J.. Sci. Technol. A 2, 1509 (1984).
16.Case, F.C., Vac, J.. Sci. Technol. A 7, 1194 (1989).
17.Leone, A., Trione, A.M., Junga, F., IEEE Trans. Nucl. Sci. 37, 1739 (1990).
18.Lu, T.C., Lin, L. B., Liu, Q., Lu, Y., Feng, X.D., Nucl. Instum/ Methods. Phys. Res., Sect.B, 191 291 (2002).
19.Karl, H., Peng, J., Stritzker, B., Mater. Res. Soc. Symp. Proc. 1256 (2010)
20.Madiba, I.G., Émond, N., Chaker, M., Thema, F.T.,Tadadjeuc, S.I. c, S.I., Muller, U., Zolliker, P., Braun, A., Kotsedi, L., Maaza, M., 411, 271 (2017).
21.gullikson, E. M., Henke, B. L., Davis, JC, Interactions-photoabsorption, scattering, transmission and reflection AT E=50-30.000 EV, Z=1-92. Atomic data and nuclear Data Tables 1993, 54:181342.
22.gullikson, E. M., Henke, B. L., Davis, JC, Interactions-photoabsorption, scattering, transmission and reflection AT E=50-30.000 EV, Z=1-92 (Vol 54, p. 181, 1993). Atomic data and nuclear Data Tables 1993, 55:349-349.
23.Thompson, A.C., X-Ray Data booklet, Center for X-ray Optics, Lawrence Berkeley National Laboratory, California USA, 2009.



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