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Radiative recombination and lifetime of a triplet excitation mediated by spin-orbit coupling in amorphous semiconductors

Singh, Jai (2007). Radiative recombination and lifetime of a triplet excitation mediated by spin-orbit coupling in amorphous semiconductors. Physical Review B: Condensed Matter and Materials Physics,76(8):85205-85215.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 10 times in Scopus Article | Citations

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IRMA ID 80801245xPUB61
Title Radiative recombination and lifetime of a triplet excitation mediated by spin-orbit coupling in amorphous semiconductors
Author Singh, Jai
Journal Name Physical Review B: Condensed Matter and Materials Physics
Publication Date 2007
Volume Number 76
Issue Number 8
ISSN 1550-235X   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-34547966396
Start Page 85205
End Page 85215
Total Pages 11
Place of Publication New York, US
Publisher American Physical Society
Field of Research MATHEMATICAL SCIENCES
PHYSICAL SCIENCES
ENGINEERING
HERDC Category C1 - Journal Article (DEST)
Abstract A charge carrier spin-photon interaction time-dependent transition operator is derived and used for calculating the rate of spontaneous emission of a photon from the radiative recombination of a triplet excited electron in atoms and molecules and triplet excitons in amorphous semiconductors. The derived results are then applied to the hydrogenated amorphous silicon (a-Si:H) to calculate the rate of spontaneous emission and radiative lifetime of triplet excitons. The temperature dependence of the rate of emission is also studied. The calculated radiative lifetimes are compared with the recent experimental results and good agreement was found. The theory is general and can be applied to any amorphous materials, including organic solids.
DOI http://dx.doi.org/10.1103/PhysRevB.76.085205   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
Additional Notes Print ISSN: 1098-0121
 
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Created: Fri, 12 Sep 2008, 08:35:25 CST by Administrator