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Title: Determining the efficiency of fast ultrahigh-density writing of low-conductivity patterns on semiconducting polymers
Authors: Keivanidis, Panagiotis E. 
Di Donate, Andrea 
Mencarelli, Davide 
Esposito, Alessandro 
Ye, Tengling 
Lanzani, Guglielmo 
Venanzoni, Giuseppe 
Pietrangelo, Tiziana 
Morini, Antonio 
Farina, Marco 
Keywords: Semiconducting polymers;Composite films
Category: Mechanical Engineering
Field: Engineering and Technology
Issue Date: 1-Jan-2015
Publisher: Materials Research Society
Source: MRS Fall Meeting, 2014, Boston, United States
metadata.dc.doi: 10.1557/opl.2015.81
Abstract: We present a nano-patterning process for semiconducting polymeric composites that could potentially be utilized for the development of polymer-based data storage devices. Nano-patterning (writing) operates on the basis of the mechanical interaction between the electrically unbiased tip of an atomic force microscope and the surface of polymeric composite films. Via friction forces, the tip/sample interaction produces a local increase of molecular disorder in the polymer matrix, inducing a localized lowering in the conductivity of the organic semiconductor. Herein we suggest a figure of merit for quantifying the efficiency of pattern formation and we address the dependence of the writing process on the thermal annealing temperature of the composite film. Control experiments on composite films deposited on substrates with different roughness suggest that the writing effect is invariant to the roughness of the substrate. The potential storage density of the writing process depends on the tip curvature.
ISBN: 978-160511706-5
Rights: © 2015 Materials Research Society.
Type: Conference Papers
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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