High-Performing Thin-Film Transistors in Large Spherulites of Conjugated Polymer Formed by Epitaxial Growth on Removable Organic Crystalline Templates
- Authors
- Kim, Jae Yoon; Yang, Da Seul; Shin, Jicheol; Bilby, David; Chung, Kyeongwoon; Um, Hyun Ah; Chun, Jaehee; Pyo, Seungmoon; Cho, Min Ju; Kim, Jinsang; Choi, Dong Hoon
- Issue Date
- 24-6월-2015
- Publisher
- AMER CHEMICAL SOC
- Keywords
- conjugated polymer; diketopyrrolopyrrole; epitaxy; alignment; thin-film transistor
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.7, no.24, pp.13431 - 13439
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 7
- Number
- 24
- Start Page
- 13431
- End Page
- 13439
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/93239
- DOI
- 10.1021/acsami.5b02265
- ISSN
- 1944-8244
- Abstract
- Diketopyrrolopyrrole (DPP)-based conjugated polymer PDTDPPQT was synthesized and was used to perform epitaxial polymer crystal growth on removable 1,3,5-trichlorobenzene crystallite templates. A thin-film transistor (TFT) was successfully fabricated in well-grown large spherulites of PDTDPPQT. The charge carrier mobility along the radial direction of the spherulites was measured to be 5.46-12.04 cm(2) V-1 s(-1), which is significantly higher than that in the direction perpendicular to the radial direction. The dynamic response of charge transport was also investigated by applying a pulsed bias to TFTs loaded with a resistor (similar to 20 M Omega). The charge-transport behaviors along the radial direction and perpendicular to the radial direction were investigated by static and dynamic experiments through a resistor-loaded (RL) inverter. The RL inverter made of PDTDPPQT-based TFT operates well, maintaining a fairly high switching voltage ratio (V-out(ON)/V-out(OFF)) at a relatively high frequency when the source-drain electrodes are aligned parallel to the radial direction.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Department of Chemistry > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.