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Photoinduced splitting of bipolarons in polymers
Author(s) -
Shen Xiao,
Tang Fei,
George Thomas F.,
Sun Xin
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200402072
Subject(s) - bipolaron , polaron , charge carrier , condensed matter physics , charge (physics) , spin (aerodynamics) , materials science , polymer , chemical physics , chemistry , physics , electron , quantum mechanics , nuclear magnetic resonance , thermodynamics
In conducting polymers, a polaron carries charge with spin and a bipolaron carries charge without spin. Hence, the polaron is a spin carrier but the bipolaron is not. Through a dynamical simulation, our study of photoinduced phenomena shows that, by absorbing a photon, a bipolaron is split into two polarons. This photoinduced splitting converts a charge carrier (bipolaron) into two spin carriers (polarons). (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)