14:19 Aug 10, 2014 |
Polish to English translations [PRO] Science - Chemistry; Chem Sci/Eng / general | |||||
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| Selected response from: Frank Szmulowicz, Ph. D. United States Local time: 09:26 | ||||
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Summary of answers provided | ||||
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2 | inverted/reverse indirect transition |
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Discussion entries: 1 | |
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inverted/reverse indirect transition Explanation: indirect transition is rather certain odwrócone may depend on exact meaning. I will have to study tin oxide. -------------------------------------------------- Note added at 24 mins (2014-08-10 14:44:15 GMT) -------------------------------------------------- Band structure of indium oxide: Indirect versus direct band gap http://materialsmodeling.com/pubs/ErhKleEgd07.pdf cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc -------------------------------------------------- Note added at 26 mins (2014-08-10 14:46:31 GMT) -------------------------------------------------- Previous optical measurements performed 40 years ago showed a strong absorption at 3.75 eV (attributed to direct transitions) and a weaker absorption at 2.62 eV (attributed to indirect transitions). Transparent Conducting Oxides (TCOs) However, the band gap is ubiquitously referred to in the literature as 3.75 eV or thereabouts. As shown in previous work (see Ref.: Appl. Phys. Lett. 92 092117 (2008)), the valence band maximum (VBM) in photoemission has been found to lie less than 3 eV below the Fermi energy. An indirect band gap could explain these results, http://payneresearch.org/research/transparent-conducting-oxi... |
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