Optical limiting of fullerenes. Why are the results so different in solution vs in solid matrix
Sun, YP; Riggs, JE
| HERO ID | 4936172 |
|---|---|
| Year | 1999 |
| Title | Optical limiting of fullerenes. Why are the results so different in solution vs in solid matrix |
| Book Title | ELECTROCHEMICAL SOCIETY SERIES |
| Authors | Sun, YP; Riggs, JE |
| Volume | 99 |
| Page Numbers | 398-410 |
| Abstract | Optical limiting properties of methane [60]fullerene - diethyl malonate mono- and multiple-adducts were investigated systematically. For all of the fullerene derivatives in room-temperature solution, observed optical limiting responses toward the second harmonic of a Q-switched Nd:YAG nanosecond pulsed laser are strongly concentration dependent. The strong concentration dependence is likely due to effects on optical limiting contributions that are associated with bimolecular excited state processes in the fullerene derivatives. Consistent with such effects, optical limiting responses of the mono-adduct in polymethylmethacrylate polymer films are much weaker than those in concentrated solutions but in excellent agreement with those in dilute solutions. The results are explained in terms of a reverse saturable absorption mechanism that includes both unimolecular and bimolecular excited state processes of fullerenes. |
| Wosid | WOS:000083175200045 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal:RECENT ADVANCES IN THE CHEMISTRY AND PHYSICS OF FULLERENES AND RELATED MATERIAL, VOL 7 |
| Is Public | Yes |