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Transport and Spectroscopic Features of Composite Semiconductor Material Based on Poly[2-Methoxy-5(2-Ethyl-Hexyloxy)-1,4-Phenylene-Vinylene]

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For the first time we report on investigations of the electrical transport properties of multicomponent polymer systems based on [2-methoxy-5-(2′-etilgeksiloksi)-1,4-phenylene vinylene-] (MEH-PPV) molecules. The temperature dependences of dark conductivity on DC allow us to find a polaron mechanism of the charge transport with activation energy of 0.058 eV, which can be explained by an influence of phthalocyanine complex embedded in a polymer matrix as nanoimpurity. Theoretical calculations with Molecular Mechanics Universal Force Field (UFF) reveal that a set of Pc molecules has the dipole moment of 1.1276 Debye and its direction is from nitrogen atoms in the center of Pc ring to benzene groups in the periphery of the Pc molecule. Infrared optical spectroscopy data demonstrate that incorporation of the phthalocyanine complexes into the polymeric matrix leads to appearance of a set of the absorption lines in the region of 750 รท 3340 cm–1.
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Keywords: COMPOSITE SEMICONDUCTOR; PHTHALOCYANINE; POLARON; POLYMER

Document Type: Research Article

Publication date: November 1, 2012

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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