논문 해외 국제전문학술지(SCI급) Enhancement of Charge Injection in Organic Field-Effect Transistors through Semiconducting Organic Buffer Layer
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2021
- 저자명 Gyujeong Lee, Hea-Lim Park, Sin-Hyung Lee, Min-Hoi Kim*, and Sin-Doo Lee
- 학술지명 Journal of Nanoscience and Nanotechnology
- 발행처명 NIH
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
홈페이지논문 초록 (Abstract)
We investigate the effect of a semiconducting organic buffer layer (SOBL) on the injection and transport of charges in organic field-effect transistors (OFETs). Here, two different injection barriers at the source/organic semiconductor interface are respectively studied with the aid of a numerical simulation: one is intermediate (0.4 eV), and the other is large energy barriers (0.6 eV). The introduction of nanostructure buffer layer, or SOBL, exhibits the decrease of potential loss at the contact interfaces, improving the electrical performance of the OFETs. It is also found that the energy level as well as the mobility of the SOBL plays an important role in determining the injection properties at the metal/organic hetero-interfaces and thus improving the device performance. Our systematic investigation on the injection barrier by the introduction of the nanostructure buffer layer will provide a useful guideline for the fabrication of high-performance FETs with molecular semiconductors.