title: Post annealing effects on the electrical characteristics of pentacene thin film transistors on flexible substrates.
abstract: This work studies the effect of post annealing of pentacene on a flexible substrate through the examination of electrical properties and surface morphologies. It is confirmed that the best performance of devices is achieved when the post annealing temperature is 60 degrees C, since the grain size increases, which decrease grain boundaries caused charge transport limit. We can also confirmed the large threshold voltage shift of device annealed at 60 degrees C that means the lower trap density between channel and insulator interface. The device annealed at 60 degrees C exhibits a saturation mobility of 1.99 cm2/V x s, an on/off ratio of 1.87 x 10(4), and a subthreshold slope of 2.5 V/decade.
authors.affiliation: Display and Nanosystem Laboratory, College of Engineering, Korea University, Seoul 136-713, Republic of Korea.
authors.forename: Tae-Yeon
authors.initials: TY
authors.lastname: Oh
authors.forename: Shin Woo
authors.initials: SW
authors.lastname: Jeong
authors.forename: Seongpil
authors.initials: S
authors.lastname: Chang
authors.forename: Jung-Ho
authors.initials: JH
authors.lastname: Park
authors.forename: Jong-Woo
authors.initials: JW
authors.lastname: Kim
authors.forename: Kookhyun
authors.initials: K
authors.lastname: Choi
authors.forename: Hyeon-Jun
authors.initials: HJ
authors.lastname: Ha
authors.forename: Bo-Yeon
authors.initials: BY
authors.lastname: Hwang
authors.forename: Byeong-Kwon
authors.initials: BK
authors.lastname: Ju
mesh_terms: D055119:Elastic Modulus; D004553:Electric Conductivity; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006244:Hardness; D006358:Hot Temperature; D008422:Materials Testing; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D009279:Naphthacenes / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014173:Transistors, Electronic
chemical_list: D008567:Membranes, Artificial; D009279:Naphthacenes; C009495:titanium dioxide; C523499:pentacene; D014025:Titanium