Complex centers of hydrogen in tin dioxide

Verfasser / Beitragende:
[P. Borges, L. Scolfaro, L. Assali]
Ort, Verlag, Jahr:
2015
Enthalten in:
Theoretical Chemistry Accounts, 134/11(2015-11-01), 1-7
Format:
Artikel (online)
ID: 605488630
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024 7 0 |a 10.1007/s00214-015-1735-2  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00214-015-1735-2 
245 0 0 |a Complex centers of hydrogen in tin dioxide  |h [Elektronische Daten]  |c [P. Borges, L. Scolfaro, L. Assali] 
520 3 |a Tin dioxide is a wide band-gap semiconductor and is part of a class of promising transparent conducting oxides. It shows n-type conductivity, even when not intentionally doped, and is usually attributed to intrinsic defects. Theoretically, the unintentional doping with hydrogen, either at interstitials or at O sites, has been proposed to provide the shallow donors for the n-type conductivity of SnO2. Since H is an electrically active impurity present in many growth environments, a deeper theoretical understanding of the hydrogen and H-related complexes in SnO2 is highly welcome. We present here the results of ab initio studies, based on self-consistent electronic structure calculations, based on Perdew, Burke and Ernzerhof plus the on-site Coulomb correction and Heyd-Scuseria-Ernzerhof hybrid functional approaches, for several H-related defect centers in SnO2. Isolated substitutional (HO) and interstitial (Hi) impurities, as well as some complexes related to them, like 2H, HO-H VSn-H, VSn-2H, VO-H2, VO-2H and Sni-H, have been analyzed from structural and electronic properties, formation energy and vibrational frequencies. A comparison of our calculated vibrational frequencies with recent infrared measurements (IR) allowed us to ascribe the observed IR peaks to the H-related centers. This, added to the low formation energy of the VO-H2 center, and nudged-elastic band method-based calculations, is a strong indication for this center to be the source of hidden hydrogen in SnO2. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Ab initio calculation  |2 nationallicence 
690 7 |a Hydrogen impurity  |2 nationallicence 
690 7 |a Tin dioxide  |2 nationallicence 
700 1 |a Borges  |D P.  |u Instituto de Ciências Exatas e Tecnologia, Universidade Federal de Viçosa, CEP 38810-000, Rio Paranaíba, MG, Brazil  |4 aut 
700 1 |a Scolfaro  |D L.  |u Department of Physics, Texas State University, 78666, San Marcos, TX, USA  |4 aut 
700 1 |a Assali  |D L.  |u Instituto de Física, Universidade de São Paulo, CP 66318, CEP 05315-970, São Paulo, SP, Brazil  |4 aut 
773 0 |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/11(2015-11-01), 1-7  |x 1432-881X  |q 134:11<1  |1 2015  |2 134  |o 214 
856 4 0 |u https://doi.org/10.1007/s00214-015-1735-2  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00214-015-1735-2  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Borges  |D P.  |u Instituto de Ciências Exatas e Tecnologia, Universidade Federal de Viçosa, CEP 38810-000, Rio Paranaíba, MG, Brazil  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Scolfaro  |D L.  |u Department of Physics, Texas State University, 78666, San Marcos, TX, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Assali  |D L.  |u Instituto de Física, Universidade de São Paulo, CP 66318, CEP 05315-970, São Paulo, SP, Brazil  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/11(2015-11-01), 1-7  |x 1432-881X  |q 134:11<1  |1 2015  |2 134  |o 214