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  • Photoinduced structural changes in molecular semi-crystalline As4Se3 films have been characterized by extended X-ray absorption fine structure and X-ray diffraction under in situ bandgap laser illumination. Transient and permanent changes in the local and long range structure have been determined quantitatively. In contrast to fully amorphous arsenic selenide films, a photoinduced contraction has been observed in semi-crystalline As4Se3 films. A phenomenological model is proposed for the photoinduced volume change in As-based chalcogenides. This model is based on two competing processes viz. intermolecular interaction through Coulombic repulsive force that results in photoexpansion, and cross-linking of molecular units through bond-switching that causes photocontraction. A guideline is presented for selecting chalcogenide glass composition with specific photoinduced volume change characteristics
  • Photoinduced structural changes in molecular semi-crystalline As4Se3 films have been characterized by extended X-ray absorption fine structure and X-ray diffraction under in situ bandgap laser illumination. Transient and permanent changes in the local and long range structure have been determined quantitatively. In contrast to fully amorphous arsenic selenide films, a photoinduced contraction has been observed in semi-crystalline As4Se3 films. A phenomenological model is proposed for the photoinduced volume change in As-based chalcogenides. This model is based on two competing processes viz. intermolecular interaction through Coulombic repulsive force that results in photoexpansion, and cross-linking of molecular units through bond-switching that causes photocontraction. A guideline is presented for selecting chalcogenide glass composition with specific photoinduced volume change characteristics (en)
  • V práci jsou s využitím Xray difrakce a techniky EXAFS studovány in situ fotoindukované změny ve vrstvách As4Se3 při jejich expozici zářením o energii srovnatelné s optickou šářkou zakázaného pásu. Na základě získaných výsledků je navržen fenomologický model fotoindukovaných objemových změn v chalkogenidech As. (cs)
Title
  • A comprehensive model of photoinduced volume change in arsenic chalcogenides by bandgap light
  • A comprehensive model of photoinduced volume change in arsenic chalcogenides by bandgap light (en)
  • Všeobecný model fotoindukovaných objemových změn v chalkogenidech arzenu při expozici bandgapovým zářením (cs)
skos:prefLabel
  • A comprehensive model of photoinduced volume change in arsenic chalcogenides by bandgap light
  • A comprehensive model of photoinduced volume change in arsenic chalcogenides by bandgap light (en)
  • Všeobecný model fotoindukovaných objemových změn v chalkogenidech arzenu při expozici bandgapovým zářením (cs)
skos:notation
  • RIV/00216275:25310/06:00004613!RIV08-MSM-25310___
http://linked.open.../vavai/riv/strany
  • 174203-174301
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika
  • 17
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 463464
http://linked.open...ai/riv/idVysledku
  • RIV/00216275:25310/06:00004613
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • photoinduced phenomena; EXAFS; XRD; chalcogenide glass (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [9176D8B7B89F]
http://linked.open...i/riv/nazevZdroje
  • Physical Review B
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 74
http://linked.open...iv/tvurceVysledku
  • Vlček, Miroslav
  • Jain, Himanshu
  • Chen, Gang
  • Ganjoo, Ashtosh
http://linked.open...n/vavai/riv/zamer
issn
  • 1098-0121
number of pages
http://localhost/t...ganizacniJednotka
  • 25310
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