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OPTICAL ABSORPTION AND PHOTOLUMINESCENCE IN PRISTINE AND PHOTOPOLYMERIZED C60 SOLID FILMS
Citation:
Wang, Y., J. Holden, A. Rao, P. Eklund, U. Venkateswaran, G. Dresselhaus, AND M. Dresselhaus. OPTICAL ABSORPTION AND PHOTOLUMINESCENCE IN PRISTINE AND PHOTOPOLYMERIZED C60 SOLID FILMS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-95/431.
Description:
The optical absorption (OA) and photoluminescence (PL) spectra of pristine, oxygen-free C60 films in the vicinity of the absorption edge across the highest-occupied-molecular-orbital to lowest-unoccupied-molecular-orbital (HOMO-LUMO) gap are studied to elucidate the nature of these electronic states. tructures observed in both the OA and PL spectra are identified with Herzberg-Teller vibtronic coupling of the respective singlet electronic states to intramolecular vibrational modes. imilarities and differences among the PL and OA spectra of C60 in solution, solid films, and single crystals are discussed.