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Title: Influences of semiconductor morphology on the mechanical fatigue behavior of flexible organic electronics

The influence of crystalline morphology on the mechanical fatigue of organic semiconductors (OSCs) was investigated using 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-pentacene) as a crystalline OSC and poly(triarylamine) (PTAA) as an amorphous OSC. During cyclic bending, resistances of the OSCs were monitored using the transmission-line method on a metal-semiconductor-metal structure. The resistance of the TIPS-pentacene increased under fatigue damage in tensile-stress mode, but no such degradation was observed in the PTAA. Both OSCs were stable under compressive bending fatigue. The formation of intergranular cracks at the domain boundaries of the TIPS-pentacene was responsible for the degradation of its electrical properties under tensile bending fatigue.
Authors:
; ; ;  [1] ; ;  [2]
  1. Department of Materials Science and Engineering, Seoul National University, 151-744 Seoul (Korea, Republic of)
  2. Center for Process Innovation Limited, Thomas Wright Way, NETPark, Sedgefield, TS21 3FG County Durham (United Kingdom)
Publication Date:
OSTI Identifier:
22253832
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 24; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BENDING; CRACKS; DAMAGE; ELECTRICAL PROPERTIES; FATIGUE; METALS; MORPHOLOGY; ORGANIC SEMICONDUCTORS; PENTACENE; STRESSES