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- Title
Performance improvement of organic thin film transistors by using active layer with sandwich structure.
- Authors
Yao Ni; Jianlin Zhou; Peng Kuang; Hui Lin; Ping Gan; Shengdong Hu; Zhi Lin
- Abstract
We report organic thin film transistors (OTFTs) with pentacene/fluorinated copper phthalocyanine (F16CuPc)/pentacene (PFP) sandwich configuration as active layers. The sandwich devices not only show hole mobility enhancement but also present a well control about threshold voltage and offstate current. By investigating various characteristics, including current-voltage hysteresis, organic film morphology, capacitance-voltage curve and resistance variation of active layers carefully, it has been found the performance improvement is mainly attributed to the low carrier traps and the higher conductivity of the sandwich active layer due to the additional induced carriers in F16CuPc/pentacene. Therefore, using proper multiple active layer is an effective way to gain high performance OTFTs.
- Subjects
THIN film transistors; SANDWICH construction (Materials); COPPER phthalocyanine; CURRENT-voltage characteristics; HYSTERESIS; SURFACE morphology
- Publication
European Physical Journal - Applied Physics, 2017, Vol 79, Issue 3, p1
- ISSN
1286-0042
- Publication type
Article
- DOI
10.1051/epjap/2017170172