bipolarons

https://doi.org/10.1351/goldbook.BT07334
Bound pairs of @PT07416@ mutually attracted by the @L03486@ in a solid.
See also:
self-localized excitations (in conjugated organic polymers)
Source:
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 309 [Terms] [Paper]