The Excited-States Spectra(S1→Sn,T1→Tn) and Reverse Saturable Absorption of C60

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (2): 279.

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The Excited-States Spectra(S₁→S_n,T₁→T_n) and Reverse Saturable Absorption of C₆₀

FENG Ji-Kang¹, LI Jun¹, FEI Hao-Sheng², CHE Yan-Long², SUN Jia-Zhong³

1. Department of Chemistry, Jilin University, Changchun, 130023;
2. Department of Physics, Jilin University, Changchun, 130023;
3. Institute of Theoretical Chemistry, Jilin University, Changchun, 130023

Received:1994-03-28 Revised:1994-08-13 Online:1995-02-24 Published:1995-02-24

Abstract

Abstract: The electronic structure,ground and excited-states spectra (S₀→S_n,S₁→S_n,T₁→T_n),excited-state molecular dynamics and micromechanism of reverse saturable absorption of C₆₀molecule were studied by using INDO/CI method.Adynamic model has been used for resolving rate equations.It is concluded that the necessary condition of reverse saturable absorption is the absorption cross section of exited state must be larger than that of ground state for LASER.This condition is satisfied when the wavelength of incident LASER is equal to 532 nm for C₆₀,so the character of reverse saturable absorption appears.

Key words: C₆₀, Excited states, Reverse saturable absorption

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FENG Ji-Kang, LI Jun, FEI Hao-Sheng, CHE Yan-Long, SUN Jia-Zhong. The Excited-States Spectra(S₁→S_n,T₁→T_n) and Reverse Saturable Absorption of C₆₀[J]. Chem. J. Chinese Universities, 1995, 16(2): 279.

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The Excited-States Spectra(S₁→S_n,T₁→T_n) and Reverse Saturable Absorption of C₆₀

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