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Light‐Induced Change of Charge Carrier Mobility in Semiconducting Polymers
Author(s) -
Vala Martin,
Weiter Martin,
Zmeškal Oldřich,
Nešpůrek Stanislav,
Toman Petr
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200850826
Subject(s) - spiropyran , charge carrier , photochromism , dipole , ionization , polymer , electron mobility , chemical physics , materials science , optoelectronics , charge (physics) , band gap , ionization energy , photochemistry , chemistry , nanotechnology , physics , organic chemistry , ion , quantum mechanics , composite material
Summary: Light‐driven devices based on reversible change of carrier mobility in semiconducting polymers were investigated. The mobility was altered using a photochromic spiropyran capable of a reversible change of permanent dipole moment and ionization potential. While the latter attribute may result in formation of chemical traps and is more important for matrices with similar ionization potential such as PVK, the former phenomenon results in formation of polar traps and is more pronounced in the case of lower‐band‐gap materials.