Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
90 0 |
SM ISO690:2012 YOVU, M., SHUTOV, Serghei, REBEJA, S., KOLOMEYKO, Eduard. Photoelectrical properties of thermally deposited amorphous As50Se50 films. In: Physica Status Solidi (B) Basic Research, 1998, vol. 206, pp. 583-592. ISSN 0370-1972. DOI: https://doi.org/10.1002/(SICI)1521-3951(199804)206:2<583::AID-PSSB583>3.0.CO;2-B |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Physica Status Solidi (B) Basic Research | ||||||
Volumul 206 / 1998 / ISSN 0370-1972 | ||||||
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DOI:https://doi.org/10.1002/(SICI)1521-3951(199804)206:2<583::AID-PSSB583>3.0.CO;2-B | ||||||
Pag. 583-592 | ||||||
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Descarcă PDF | ||||||
Rezumat | ||||||
The excitation spectrum, steady-state and transient characteristics of photoconductivity in amorphous thermally deposited chalcogenide AsSe films were studied. Besides the excitation of nonequilibrium holes by optical transitions from the valence band tail to the conduction band an additional channel of hole generation from a donor-like defect state with energy Ed - Ev = 1.5 eV was revealed. The defect is associated with the presence of homopolar As-As bonds. The steady-state and transient photoconductivity characteristics are adequately interpreted in the frame of a model, in which transport and recombination of nonequilibrium holes are controlled by exponentially distributed hole traps with the distribution parameter KT* = 0.039 eV. |
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Cuvinte-cheie chalcogenide glasses, Arsenic Trisulfide, thin films |
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