Studies of electron structure of C60 thin films by surface photovoltage spectroscopy Academic Article uri icon

abstract

  • Abstract Polycrystalline C 60 films have been studied before and after annealing using surface photovoltage spectroscopy. The results indicate the possibility of the existence of band tails, extending into the optical gap of these films, as well as other deep gap states. Annealing at moderate temperatures is shown to reduce the density of these states. A possible energy band scheme is proposed.

publication date

  • January 1, 1997