Dynamical behavior of photoluminescence of fullerene C60

Jie Song; Feiming Li; Shixiong Qian; Yufen Li; Wen-Ji Peng; Jianying Zhou; Zhenxin Yu

doi:10.1117/12.196127

28 November 1994 Dynamical behavior of photoluminescence of fullerene C60

Jie Song, Feiming Li, Shixiong Qian, Yufen Li, Wen-Ji Peng, Jianying Zhou, Zhenxin Yu

Proceedings Volume 2284, Fullerenes and Photonics; (1994) https://doi.org/10.1117/12.196127
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Using a picosecond excitation source and a time-resolved streak camera detection system, we have observed the time-resolved photoluminescence spectra of C₆₀ from toluene solution at room temperature and from thin film at both room temperature and 77 K. For C₆₀ solution, a photoluminescence peak at about 730 nm was detected at room temperature and its decay time was determined to be 1.1 ns. For C₆₀ film, the photoluminescence peak was at about 730 nm at 77 K and 740 nm at room temperature, respectively. Its time decay behavior changed from a slow process with decay time of 0.9 ns to a fast process which was fitted well to a double exponential of decay times of (tau) ₁ equals 0.087 ns, (tau) ₂ equals 0.68 ns. Some relaxation mechanisms are suggested in explaining this phenomenon.

Citation Download Citation

Jie Song, Feiming Li, Shixiong Qian, Yufen Li, Wen-Ji Peng, Jianying Zhou, and Zhenxin Yu "Dynamical behavior of photoluminescence of fullerene C60", Proc. SPIE 2284, Fullerenes and Photonics, (28 November 1994); https://doi.org/10.1117/12.196127

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