Photoinduced changes in the fundamental absorption of C60 films
Bazhenov A. V., Gorbunov A. V., Volkodav K. G.
An increase in the absorption in C60 films near the optical transitions with 1.6 and 2.3 eV, which are forbidden in the C60 molecule, has been observed upon photoinjection of electron-hole pairs. A long-wave shift of the allowed transition with 3.5 eV has been observed under the same conditions. The photoinduced changes are explained in a model of hybridized electron states with the help of results found on the temperature dependence of the fundamental absorption of this fullerite. © 1994 American Institute of Physics.