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- 1. Phys. Rev. Lett. 98, 135506 (2007) , “Possible Approach to Overcome the Doping Asymmetry in Wideband Gap Semiconductors”, Yanfa Yan, Jingbo Li, Su-Huai Wei, and M. M. Al-JassimThe asymmetry doping problem has severely hindered the potential applications of many wideband gap (WBG) materials. Here, we propose a possible approach to overcome this long-standing doping asymmetry problem for WBG semiconductors. Our approach is based on the reduction of the ionization energies... (Read more)
- 2. Phys. Rev. B 74, 045202 (2006) , “Effects of cation d states on the structural and electronic properties of III-nitride and II-oxide wide-band-gap semiconductors”, Anderson Janotti, David Segev, and Chris G. Van de WalleUsing first-principles methods based on density functional theory within the local density approximation (LDA) we calculate the structural and electronic properties of wurtzite MgO, ZnO, and CdO, and discuss their similarities and dissimilarities with the corresponding Group-III nitrides AlN, GaN,... (Read more)
- 3. Prog. Surf. Sci. 20, 9-103 (1985) , “Chemisorption and charge transfer at ionic semiconductor surfaces: Implications in designing gas sensors”, W. GopelA detailed atomistic understanding of charge transfer reactions between semiconductor surfaces and adsorbing particles is essential for designing gas sensors or metal-oxide catalysts.This will be demonstrated in a discussion of thermodynamically or kinetically controlled solid/gas interactions at... (Read more)
- 4. Thermochim. Acta 29, 247-252 (1979) , “Combined EPR and TG techniques : comparison of the thermal reduction of chromium (VI) ions in some zinc chromates and chromate-oxalate mixtures*1”, Z. Gabelica , E. G. DerouaneR. HubinLower oxydation state chromium species which are successively formed and stabilized upon thermal reduction of chromate (VI) ions, are studied by combined EPR and TG-techniques.The spontaneous oxygen release occuring during the vacuum thermal treatment of some zinc chromates leads to the formation of... (Read more)
- 5. Advances in Molecular Relaxation Processes 5, 211-218 (1973) , “Chemisorption of oxygen on transition metal oxides studied by EPR”, Krystyna DyrekThe method was applied to the investigation of adsorption of oxygen on the transition metal oxides MnO, FeO, CoO, Cu2O, and their solid solutions in the diamagnetic matrices ZnO and MgO. It has been found that in the case of pure oxides and their solid solutions at high magnetic metal ion... (Read more)
- 6. J. Lumin. 6, 376-384 (1973) , “2S1/2 state ions in inorganic luminescent materials*1”, G. Born, A. Hofstaetter , A. ScharmannSelected examples of impurity ions with one unpaired electron in an unfilled shell are Pb3+ ions in II–IV compounds (ZnO, ZnSe, ZnTe), Pb3+ in CaWO4,F centres in alkali halides and Ag0 and Au0 atoms in radiophotoluminescent (RPL) glasses. Comparative studies of EPR, luminescence,... (Read more)
- 7. J. Phys. Chem. Solids 29, 1407-1429 (1968) , “The structure of the paramagnetic lithium center in zinc oxide and beryllium oxide”, O. F. SchirmerIf ZnO and BeO crystals containing Li are irradiated with u.v. or X-rays, a paramagnetic defect center is created consisting of a hole captured at an O2− ion next to a substitutional Li+ impurity. Because of the polarity of the crystals, the hole assumes its lowest energy, if the... (Read more)
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