Photoluminescence of solid C60 polymerized under high pressure

Autor: Yu. A. Ossipyan, A. P. Moravsky, A. N. Izotov, R. K. Nikolaev, E. G. Ponyatovsky, E. A. Steinman, I. O. Bashkin, V. D. Negrii
Rok vydání: 1997
Předmět:
Zdroj: Chemical Physics Letters. 272:32-37
ISSN: 0009-2614
DOI: 10.1016/s0009-2614(97)00494-6
Popis: Photoluminescence (PL) spectra were measured on the C 60 polymeric phase prepared from a single crystal and from a microcrystalline powder treated at pressures to 15 kbar and temperatures to 600 K. It was found that the high-pressure treatment resulted in a shift of the spectral intensity distribution to lower energies compared to the well-known spectrum of pristine C 60 . A set of new lines was observed. The PL spectrum of the high-pressure phase exhibited a distinct structure contrary to that of photopolymerized C 60 . The PL intensity of the high-pressure phase showed a non-monotomic temperature dependence with a slight minimumum around 150 K.
Databáze: OpenAIRE