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The dynamics of photoinduced defect creation in amorphous chalcogenides: The origin of the stretched exponential function | ||
| Author Name | : Ruben Jeronimo Freitas, ST., M.Eng, Sc |
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| Category | : Internasional Publication | |
| Published in | : Estados Unidos America 2014 | |
| Publication File | : No File Uploaded | |
| Link | : http://scitation.aip.org/content/aip/journal/jap/115/1/10.1063/1.4861143 | |
The article discusses the dynamics of photoinduced defect creations (PDC) in amorphous chalcogenides,which is described by the stretched exponential function (SEF), while the well known photodarkening (PD) and photoinduced volume expansion (PVE) are governed only by the exponential function. It is shown that the exponential distribution of the thermal activation barrier produces the SEF in PDC, suggesting that thermal energy, as well as photon energy, is incorporated in PDC mechanisms. The differences indynamics among three major photoinduced effects (PD, PVE, and PDC) in amorphous chalcogenides are now well understood.
