Effect of surface property of polyimide substrate on the formation of pentacene thin-film
SCIE
SCOPUS
- Title
- Effect of surface property of polyimide substrate on the formation of pentacene thin-film
- Authors
- Yu, CJ; Choi, Y; Pyo, S; Yi, M; Kim, JS; Cho, K; Lee, DR
- Date Issued
- 2009-04-01
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- We investigated the effect of surface property of polyimide substrate on the formation of pentacene thin. film by using atomic force microscopy (AFM) and X-ray reflectivity (XRR) and diffuse scattering (XDS). Two types of polymer films were prepared: (1) polyimide (PAA-PI) from poly(amic acid) (PAA) (2) polyimide hybrid (PAA-PI-H) prepared by hybridizing the PAA and soluble polyimide (PI) with a octadecyl side chain. The hybridization ratio of PI to PAA was 2/98 in wt%. The water contact angle for PAA-PI-H and PAA-PI were around 808 and 648, respectively. Morphology of pentacene with a ropelike structure and ( 1 1 0) peak around 1.4 A in q(z) was found when it was deposited on PAA-PI thin-film. Different pentacene morphology was observed when it was deposited on PAA-PI-H thin-film. The different morphology might be due to a 5-6 nm thick additional layer (similar to 0.95 rho(film)) at the interface between pentacene and PAA-PI-H thin-film caused by a long alkyl side chain introduced to the polymer main chain. (C) 2009 Elsevier B.V. All rights reserved.
- Keywords
- Surface property; Thin-film; Polyimide; Pentacene; PHOTOSENSITIVE POLYIMIDE; TRANSISTORS; GATE; MORPHOLOGY; SIO2
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28983
- DOI
- 10.1016/j.apsusc.2009.01.045
- ISSN
- 0169-4332
- Article Type
- Article
- Citation
- APPLIED SURFACE SCIENCE, vol. 255, no. 12, page. 6092 - 6096, 2009-04-01
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