Photoinduced transformation of luminescence centers in C60 crystals at high pressure
Autor: | K. P. Meletov, V. D. Negrii |
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Rok vydání: | 1999 |
Předmět: | |
Zdroj: | Journal of Experimental and Theoretical Physics Letters. 70:801-806 |
ISSN: | 1090-6487 0021-3640 |
DOI: | 10.1134/1.568234 |
Popis: | The influence of laser irradiation on the photoluminescence spectra of perfect C60 crystals in the orientationally disordered phase is investigated. It is shown that irradiation of the crystals with low-power light for short durations at T=200 K produces radical changes in the luminescence spectrum. The pressure dependences of the spectral bands of the phototransformed and initial (without irradiation) spectra differ significantly, indicating a photoinduced structural transformation of the X centers responsible for the luminescence of C60. The phototransformed C60 crystals are stable against further exposure to light irradiation and pressure. |
Databáze: | OpenAIRE |
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