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Microscopic study of carrier transport in the organic semiconductor Zinc-Phthalocyanine
Authors: João Piroto Duarte, Helena Vieira Alberto, Rui César Vilão, João M. Gil, Alois Weidinger, and Nuno Ayres de Campos
Ref.: Physica Status Solidi (c) 7, 996-999 (2010)
Abstract: Nominally undoped zinc-phthalocyanine (ZnPc) was investigated using Muon Spin Rotation (mu SR) to probe microscopic carrier transport properties. The study focused on the relaxation of the positive muon´s polarisation produced by spin-flip scattering with charge carriers. An energy of 71(8) meV was found for the temperature activation of carrier jumps, a value that does not match the activation energies known in ZnPc from electrical measurements, and that was attributed to a fast transport component in this material. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
