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  • Photoluminescence  (1)
  • Photosystem  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Bioenergetics 1185 (1994), S. 167-176 
    ISSN: 0005-2728
    Keywords: Chlorophyll ; FDMR ; Fluorescence detected magnetic resonance ; P680 ; Photosystem ; Triplet
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 12 (1990), S. 233-243 
    ISSN: 0392-6737
    Keywords: Photoluminescence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto È stata esaminata l’emissione ottica, risolta nel tempo, del cristallo di bifenile-1,2,4,5-tetracianobenzene drogato con TCNQ, nell’intervallo di temperatura (77÷300) K. Sono stati misurati i tempi di vita della fluorescenza pronta col metodo del ritardo di fase e della demodulazione. Il decadimento della fluorescenza risulta una funzione esponenziale i cui coefficienti dipendono fortemente dalla temperatura. È stata determinata una energia di attivazione termica di 300 cm−1 per la diffusione dell’eccitone di singoletto nel cristallo.
    Abstract: Резюме В области температур (77÷300) K исследованы переходные оптические спектры излучения кристалла бифенил-1,2,4,5-тетрационобензола с добавками TCNQ. Измерена длительность мгновенной флуоресценции первичного кристалла, используя фазовую флуорометрию. Затухающий сигнал описывается биэкспоненциальной функцией с коэффициентами, сильно зависящими от температуры. Определена энергия тепловой активации 300 см−1 для диффузии синглетного экситона.
    Notes: Summary Transient optical emission spectra of biphenyl-1,2,4,5-tetracyanobenzene crystal doped with TCNQ have been investigated in the (77÷300) K temperature range. Host prompt fluorescence lifetimes have been measured by cross-correlation phase fluorometry. The decay signal is fitted by a biexponential function whose coefficients are strongly dependent on temperature. A thermal activation energy of 300 cm−1 for the diffusion of singlet exciton has been determined.
    Type of Medium: Electronic Resource
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