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- W1978367616 abstract "An analysis is presented of the emission spectrum to be expected from model centers in vibrationally excited and electronically excited states. It is shown that for centers which normally exhibit a sizable Stokes' shift there will be, for a short time following excitation, a large component of emission at approximately twice the usual Stokes' shift. This anomalous emission would be detectable by ultra-fast (pico-second) excitation and detection, and in selected systems by conventional means. Its measurement would provide an estimate of the vibrational relaxation time of the center. The implications of the relaxation rate on electronic energy transfer between like species are briefly discussed. Es wird eine Analyse des Emissionsspektrums angegeben, das aus den Modellzentren in angeregten Schwingungszuständen und angeregten elektronischen Zuständen erwartet wird. Es wird gezeigt, daß für Zentren, die normalerweise eine beträchtliche Stokes-Verschiebung zeigen, für kurze Zeit nach der Anregung eine große Komponente der Emission mit näherungsweise dern doppelten Wert der gewöhnlichen Stokes-Verschiebung existiert. Diese anomale Emission könnte durch ultra-schnelle (Pikosekunden-)Anregung und Nachweis und in ausgewählten Systemen mit konventionellen Mitteln nachgewiesen werden. Ihre Messung würde eine Berechnung der Schwingungsrelaxationszeit des Zentrums liefern. Die Folgerungen aus der Abhängigkeit der Relaxationsgeschwindigkeit vom elektronischen Energieübergang zwischen gleichen Zentren werden kurz diskutiert." @default.
- W1978367616 created "2016-06-24" @default.
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- W1978367616 date "1972-06-01" @default.
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- W1978367616 title "Effect of Slow Vibrational Relaxation on Anomalous Stokes-Shifted Luminescence and Energy Transfer in Solids" @default.
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- W1978367616 doi "https://doi.org/10.1002/pssb.2220510217" @default.
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