Raman study of photoexcited C60
| Autor: | Suchismita Guha, Timothy Karcher, B.L. Ramakrishna, K. Sinha, Jose Menendez, David Wright |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Fullerene
Chemistry Analytical chemistry General Chemistry Condensed Matter Physics Photochemistry Laser law.invention Condensed Matter::Materials Science symbols.namesake Polymerization law Materials Chemistry symbols Pinch Absorption (chemistry) Electron paramagnetic resonance Raman spectroscopy Raman scattering |
| Zdroj: | Solid State Communications. 87:981-986 |
| ISSN: | 0038-1098 |
| DOI: | 10.1016/0038-1098(93)90544-w |
| Popis: | The high-energy pentagonal pinch mode of C 60 is known to soften under high incident laser irradiance in an oxygen-free environment. We have studied this phenomenon in C 60 films, single crystals, and solutions in CS 2 . Our Raman, optical absorption, and EPR data indicate that the softened Raman peak is related to very long lived states in C 60 . The experiments are consistent with the recently proposed photoinduced polymerization of C 60 and also suggest the presence of C 60 anions in the photoexcited material. |
| Databáze: | OpenAIRE |
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