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P‐120: High‐performance of Ink‐jet Printed Organic Thin‐film Transistors on Flexible Substrate using a Small Molecule‐polymer Blend
Author(s) -
Kim Sung Hoon,
Choi Min Hee,
Kim Byung Soon,
Jang Jin
Publication year - 2011
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3621159
Subject(s) - pentacene , materials science , thin film transistor , inkwell , active layer , polymer , crystallinity , layer (electronics) , optoelectronics , saturation (graph theory) , substrate (aquarium) , organic electronics , organic semiconductor , thin film , transistor , nanotechnology , composite material , voltage , electrical engineering , oceanography , mathematics , engineering , combinatorics , geology
We report the high performance, 6,13‐bis(triisopropyl silylethynyl) pentacene (TIPS‐pentacene) organic thin‐film transistors (OTFTs) by ink‐jet printing on a thin polymer layer. The OTFT with polymer/TIPS‐pentacene exhibited the saturation field‐effect mobility (μ sat ) of 1.11 cm 2 /Vs and threshold voltage (V th ) of −0.41 V. In contrast, the ink‐jet printed TIPS‐pentacene TFT without PS layer shows the μ sat of 0.36 cm 2 /Vs and V th of −0.62 V. The improved performance of polymer blended OTFT appears to be due to the improved crystallinity of the polymer blended TIPS‐pentacene layer.