| 학회 | 한국공업화학회 |
| 학술대회 | 2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 | 21권 1호 |
| 발표분야 | 디스플레이 |
| 제목 | Optimization of VOC of Organic Electronic Devices by Tuning Dipole Moment of Polyelectrolyte as an Interfacial Layer |
| 초록 | PEDOT:PSS is mostly used as the HTL. However, there is evidence that the acidic nature of PEDOT:PSS is limited long-term device performance and stability. As an alternative to PEDOT:PSS, conjugated polyelectrolytes (CPEs) have been developed to serve as HTLs in organic electronic devices. In this study, an alcohol-soluble CPE based on fluorene with ionic side chain was designed and synthesized via Suzuki coupling reaction. And the CPE was successfully incorporated into organic solar cell and light emitting diode as a pH-neutral hole-transporting layer via solution process at room temperature. The interfacial conductivity and WF of CPE-coated ITO were controlled by the dipole moment of the CPE. The change of WF by dipole moment was characterized using ultraviolet photoelectron spectroscopy. The results indicate the importance of judicious selection of a π-conjugated monomer with optimal electrical and structural properties to obtain effective CPE for organic electronic devices. |
| 저자 | 최민희, 한용운, 문두경 |
| 소속 | 건국대 |
| 키워드 | Suzuki coupling reaction; Polyelectrolyte; Interfacial layer; Organic electronic device |
