@inproceedings{ba7220371ea64213861e4b7dc230df7c,
title = "Even parity states in PPV, polythiophene and polysilanes",
abstract = "Two photon absorptions (TPA) in conjugated polymers with large bond alternation are reinterpreted. TPA to the 2Ag in long chains should be tiny due to cancellation effects, and therefore the observed strong, narrow TPA is to a higher even parity state. We also present the first theoretical evidence for bound biexcitons, and explain recent photoinduced absorption data.",
author = "F. Guo and M. Chandross and S. Mazumdar",
year = "1994",
language = "English (US)",
isbn = "1558992278",
series = "Materials Research Society Symposium Proceedings",
publisher = "Publ by Materials Research Society",
pages = "787--792",
editor = "Garito, {Anthony F.} and Jen, {Alex K-Y.} and Lee, {Charles Y-C.} and Dalton, {Larry R.}",
booktitle = "Electrical, Optical, and Magnetic Properties of Organic Solid State Materials",
note = "Proceedings of the MRS 1993 Fall Meeting ; Conference date: 29-11-1993 Through 03-12-1993",
}