Low-lying electronically excited states of C60 and C70 were identified in picosecond transient absorption measurements extending in wavelength down to 1000 nm. Spectral features in the near-infrared region were found to be significantly different from the results of previous studies. The lifetimes for S1 states of C60 and C70 were determined to be 1.3±0.2 ns and 0.7±0.05 ns, respectively. A simple energy diagram for electronic states of C60 and C70 is presented.
Bibliographical noteFunding Information:
This work was supported by SNU Daewoo Research Fund, the University-Kriss joint research program, and the Korea Science and Engineering Foundation funds to DK and SKK through the Center for Molecular Science. We thank Mr. S.K. Yu for development of software in transient absorption
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry