High-Performance Triisopropylsilylethynyl Pentacene Transistors via Spin Coating with a Crystallization-Assisting Layer
SCIE
SCOPUS
- Title
- High-Performance Triisopropylsilylethynyl Pentacene Transistors via Spin Coating with a Crystallization-Assisting Layer
- Authors
- Danbi Choi; Byungcheol Ahn; Se Hyun Kim; Kipyo Hong; Ree, M; Park, CE
- Date Issued
- 2012-01
- Publisher
- AMER CHEMICAL SOC
- 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.
- Keywords
- triisopropylsilylethynyl pentacene (TIPS-PEN); crystallization-assisting layer; spin-coating; self-organization; ORGANOSILICATE DIELECTRIC FILMS; FIELD-EFFECT TRANSISTORS; ORGANIC TRANSISTORS; SELF-ORGANIZATION; MOBILITY; SEMICONDUCTORS; POLYMERS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15565
- DOI
- 10.1021/AM201074N
- ISSN
- 1944-8244
- Article Type
- Article
- Citation
- ACS APPLIED MATERIALS & INTERFACES, vol. 4, no. 1, page. 117 - 122, 2012-01
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