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Thermoreflectance spectra of diamond and zinc-blende semiconductors in the vacuum-ultraviolet region
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Optical Properties of Cubic Stabilized Zirconia
No full textOptical absorption across the fundamental edge and the associated photoluminescence, have been studied in single crystals of yttrium stabilized zirconia (YSZ) of varying yttrium concentration. The results allow discrimination of a region of intrinsic transitions (above 5.2 eV) from a low energy region, where disorder-induced transitions are dominating. The size of extra absorption in this range shows an inverse correlation to the stoichiometric ratio, to be interpreted in terms of progressive ordering of the vacancy system
Photoconductivity of thick-film resistors
No full textA weak change of resistivity caused by visible radiation both for commercial and for model thick-film (cermet) resistors (TFRs) has been observed and studied in the temperature range 10-380 K. A possible origin of this photoelectric effect in terms of photoexcited electrons emitted from the metallic grain surface into glassy region is discussed
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