Photoluminescence of fullerene thin films prepared at various substrate temperatures
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説明
Photoluminescences (PL) and electrical conductivities of evaporated C 70 films prepared at various substrate temperatures are studied. In C 70 films prepared at low substrate temperatures, a PL peak at 1.79 eV are strongly observed, besides several peaks at 1.55, 1.67, 1.71 eV observed in the films deposited at high substrate temperatures. Thermal annealing of the films prepared at low substrate temperatures turns into the characteristic of the spectra prepared at high substrate temperatures. A novel memory effect of highly conductive state in fullerene films of C 60 and C 70 , which is attained by a treatment of high electric fields at high substrate temperatures is also mentioned.
収録刊行物
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- SPIE Proceedings
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SPIE Proceedings 3142 216-, 1997-11-01
SPIE