Feature of polaronic charge carriers in polysilanes: Experimental and theoretical approach

0343972 - ÚMCH 2011 RIV US eng J - Článek v odborném periodiku
Nešpůrek, Stanislav - Kochalska, Anna - Nožár, Juraj - Kadashchuk, A. - Fishchuk, I. I. - Sworakowski, J. - Kajzar, F.
Feature of polaronic charge carriers in polysilanes: Experimental and theoretical approach.
Molecular Crystals and Liquid Crystals. Roč. 521, - (2010), s. 72-83. ISSN 1542-1406. E-ISSN 1563-5287.
[International Conference on Frontiers of Polymers and Advanced Materials /10./. Santiago, 27.09.2009-02.10.2009]
Grant CEP: GA AV ČR IAA100100622; GA AV ČR KAN400720701
Výzkumný záměr: CEZ:AV0Z40500505
Klíčová slova: binding energy * charge mobility * hopping transport
Kód oboru RIV: CD - Makromolekulární chemie
Impakt faktor: 0.543, rok: 2010

Formation and transport of polarons in poly[methyl(phenyl) silylene]is discussed. Analytical theory based on the effective medium approach is used to explain the electric field dependence of charge carrier mobility. The obtained value of the polaron binding energy is about 0.29 eV. This result is in agreement with quantum chemical calculations based on the B3LYP method. Charge carrier transport can be described by a small polaron movement in the presence of an energetic disorder. Polaron binding energy represents significant part of the activation energy of the charge mobility.
Trvalý link: http://hdl.handle.net/11104/0005931