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dc.contributor.authorRAKOVICH, YURY
dc.date1995en
dc.date.accessioned2013-07-08T08:50:30Z
dc.date.available2013-07-08T08:50:30Z
dc.date.issued1995
dc.date.submitted06-JUL-06en
dc.identifier.citationY.P. Rakovich, G.P. Yablonski, A.A. Gladyshchuk, A.S. Smal , Influence of Surface Electric Field on Exciton Photoluminescence of CdS: Self-Reversal of Spectral Lines, Physica Status Solidi B, 189, (2), 1995, p247 - 256en
dc.identifier.otherY
dc.identifier.urihttp://hdl.handle.net/2262/66639
dc.descriptionPUBLISHEDen
dc.description.abstractThe structure of luminescence spectra of free excitons in CdS single crystals at T = 77 K is investigated. The dip formation is found in the top part of free A and B exciton resonant peaks of photoluminescence (PL) spectra after heating of the CdS crystals followed by fast cooling down to 77 K. Similar effects are observed when an external electric field is applied. It is shown that the structure of exciton PL spectra is due to self-absorption of resonance radiation in the near-surface layer with low exciton concentration. Our calculations demonstrate that the formation of an exciton concentration gradient may be caused by the influence of a surface electric field on the binding of electron-hole pairs to excitons. It is assumed that the increase of surface electric fields after heat treatment is caused by the thermostimulated adsorption of oxygen, which results in the formation of electron trap levels.en
dc.format.extent247en
dc.format.extent256en
dc.language.isoenen
dc.rightsYen
dc.subject.otherPhysics
dc.titleInfluence of Surface Electric Field on Exciton Photoluminescence of CdS: Self-Reversal of Spectral Linesen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen


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