High-Performance Triisopropylsilylethynyl Pentacene Transistors via Spin Coating with a Crystallization-Assisting Layer

Title
High-Performance Triisopropylsilylethynyl Pentacene Transistors via Spin Coating with a Crystallization-Assisting Layer
Author(s)
김세현최단비[최단비]안병철[안병철]홍기표[홍기표]이문호[이문호]박찬언[박찬언]
Keywords
ORGANOSILICATE DIELECTRIC FILMS; FIELD-EFFECT TRANSISTORS; ORGANIC TRANSISTORS; SELF-ORGANIZATION; MOBILITY; SEMICONDUCTORS; POLYMERS
Issue Date
201201
Publisher
AMER CHEMICAL SOC
Citation
ACS APPLIED MATERIALS & INTERFACES, v.4, no.1, pp.117 - 122
Abstract
The effects of spin speed and an amorphous fluoropolymer (CYTOP)-patterned substrate on the crystalline structures and device performance of triisopropylsilylethynyl pentacene (TIPS-PEN) organic field-effect transistors (OFETs) were investigated. The crystallinity of the TIPS-PEN film was enhanced by decreasing the spin speed, because slow evaporation of the solvent provided a sufficient time for the formation of thermodynamically stable crystalline structures. In addition, the adoption of a CYTOP-patterned substrate induced the three-dimensional (3D) growth of the TIPS-PEN crystals, because the patterned substrate confined the TIPS-PEN molecules and allowed sufficient time for the self-organization of TIPS-PEN. TIPS-PEN OFETs fabricated at a spin speed of 300 rpm with a CYTOP-patterned substrate showed a field-effect mobility of 0.131 cm(2) V-1 s(-1), which is a remarkable improvement over previous spin-coated TIPS-PEN OFETs.
URI
http://hdl.handle.net/YU.REPOSITORY/30059http://dx.doi.org/10.1021/am201074n
ISSN
1944-8244
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공과대학 > 화학공학부 > Articles
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