Exciton Electro-Absorption at Non-Zero Wave Vector

• Authors: M. Slawik , P. Petelenz
• Languages of publication: EN

Abstracts

EN

Based on a previously proposed two-dimensional model of a polyacene crystal, the contributions to the electro-absorption signal from different points of the exciton Brillouin zone are calculated. They are shown to differ substantially both in amplitude and in shape. This makes electro-absorption spectra very sensitive to vibronic coupling. On the one hand, the new factor is a potential complication in theoretical interpretations. On the other hand, it favours electro-absorption spectroscopy as a promising experimental tool to study vibronic effects.

Keywords

EN

78.30.Jw; 78.20.-e; 78.40.-q

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1995
• Volume: 88
• Issue: 2
• Pages: 401-409

Dates

published

1995-08

received

1995-04-05

(unknown)

1995-06-12

Contributors

author

M. Slawik

• K. Gumiński Department of Theoretical Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland

author

P. Petelenz

• K. Gumiński Department of Theoretical Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland