| Autor: |
Mizoguchi, Rei, Akiyama, Naoki, Hiruta, Sayaka, Kobayashi, Masaki, Kashiwazaki, Masahiro, Onojima, Norio |
| Zdroj: |
Japanese Journal of Applied Physics; Jun2022, Vol. 61 Issue SE, p1-6, 6p |
| Abstrakt: |
We have fabricated blend films comprising 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene) as a semiconducting small molecule and poly(methyl methacrylate) (PMMA) as an insulating polymer by electrostatic spray deposition (ESD). A thin film (5 nm) of molybdenum trioxide (MoO3) was evaporated on the entirety of the active layer surface. Then, we found that the off-state current in OFETs using the TIPS pentacene/PMMA blend films apparently increased. This result probably indicates the formation of a conductive surface channel due to the MoO3 deposition. In this study, we performed morphological and chemical analyzes. In consequence, we found that only Mo atoms (not together with O atoms) penetrated into TIPS pentacene and oxidation of Mo to MoO x could enhance charge transfer between neighboring TIPS pentacene molecules. Furthermore, this study demonstrated that the off-state current could be modulated by changing the ambient condition, such as relative humidity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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