Dresden 2014 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 117: Organic semiconductors: Material properties (with CPP/DS)
HL 117.4: Talk
Friday, April 4, 2014, 11:00–11:15, POT 051
Growth control of AgTCNQ nanowire arrays by using template-assisted electro-deposition method — •Chengliang Wang1, Liaoyong Wen1, Thomas Kups2, Ranjith Vellacheri1, Yaoguo Fang1, Peter Schaaf2, Huaping Zhao1, and Yong Lei1 — 1Institute for Physics and IMN MacroNano(ZIK), Ilmenau University of Technology, Ilmenau 98693, Germany — 2Institute of Materials Engineering and IMN MacroNano(ZIK), Ilmenau University of Technology, Ilmenau 98693, Germany
One dimensional (1D) organic semiconductor nanostructures, especially their aligned arrays, have attracted extensive attention due to their potential application in organic optoelectronics, and template-assisted methods have been proved to be one of the most powerful methods to achieve this kind of arrays. Due to the small size of the AAO nanopores, diffusion of the objects into the nanopores is one of the crucial issues to achieve nanowire arrays. Here, the growth control of AgTCNQ (TCNQ: 7,7,8,8-tetracyanoquinodimethane) nanowire arrays is achieved by using template-assisted electro-deposition methods. We find that the diffusion of the electrolyte into the nanopores takes an important role in the electro-deposition process and the equilibrium between the reduction and the diffusion is necessary to achieve continuous AgTCNQ nanowire arrays. We believed that the analysis of the equilibrium between the deposition and the diffusion and the controllable synthesis of organic semiconductor arrays will benefit the preparation of other semiconductor arrays.