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Photodarkening and Photobrightening in Glasses Doped with CdS and CdS<sub>x</sub>Se<sub>1-x</sub> Nanocrystals
12
Citations
3
References
2000
Year
EngineeringLuminescent GlassOptical GlassColloidal NanocrystalsOptoelectronic DevicesChemistryLuminescence PropertyTrapped ElectronsSemiconductorsPhotodetectorsOptical PropertiesLuminescence ExperimentsGlasses DopedMaterials SciencePhotonicsPhotoluminescencePhysicsOptoelectronic MaterialsNatural SciencesLaser LightApplied PhysicsGlass PhotonicsOptoelectronics
The photobrightening of photodarkened CdS- and CdS x Se 1- x -doped glasses has been investigated with luminescence experiments. Photobrightening depends on the wavelength of laser light, and is observed in all samples investigated, when the wavelength of laser light is longer than that of the absorption edge. Photobrightening is explained by considering the reexcitation of trapped electrons in glass.
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