| Title: |
Work-Function Engineering of Graphene Electrodes by Self-Assembled Monolayers for High-Performance Organic Field-Effect Transistors |
| Authors: |
Park, J; Lee, WH; Huh, S; Sim, SH; Kim, SB; CHO, KIL WON; Hong, BH; Kim, KS |
| Contributors: |
기계공학과; 10093923; Park, J; Kim, SB; CHO, KIL WON; Kim, KS |
| Publisher Information: |
AMER CHEMICAL SOC |
| Publication Year: |
2011 |
| Collection: |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
| Subject Terms: |
LEVEL; FILMS; SPECTROSCOPY; DEVICES |
| Description: |
We have devised a method to optimize the performance of organic field-effect transistors (OFETs) by controlling the work functions of graphene electrodes by functionalizing the surface of SiO(2) substrates with self-assembled monolayers (SAMs). The electron-donating NH(2)-terminated SAMs induce strong n-doping in graphene, whereas the CH(3)-terminated SAMs neutralize the p-doping induced by SiO(2) substrates, resulting in considerable changes in the work functions of graphene electrodes. This approach was successfully utilized to optimize electrical properties of graphene field-effect transistors and organic electronic devices using graphene electrodes. Considering the patternability and robustness of SAMs, this method would find numerous applications in graphene-based organic electronics and optoelectronic devices such as organic light-emitting diodes and organic photovoltaic devices. ; X ; 1 ; 1 ; 144 ; 134 ; scie ; scopus |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
JOURNAL OF PHYSICAL CHEMISTRY LETTERS; 841; 845; SCI급, SCOPUS 등재논문; SCI; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical; Chemistry; Science & Technology - Other Topics; Materials Science; Physics; https://oasis.postech.ac.kr/handle/2014.oak/17444; 12243; 000289824800001 |
| DOI: |
10.1021/JZ200265W |
| Availability: |
https://oasis.postech.ac.kr/handle/2014.oak/17444; https://doi.org/10.1021/JZ200265W |
| Accession Number: |
edsbas.CDC178D4 |
| Database: |
BASE |