https://scholars.lib.ntu.edu.tw/handle/123456789/627015
標題: | High-Performance Organic Photosynaptic Transistors Using Donor-Acceptor Type and Crosslinked Core-Shell Nanoparticles as a Floating Gate Electret | 作者: | Yang, WC Ercan, E Lin, YC Chen, WC Watanabe, Y Nakabayashi, K Lin, BH Lo, CT Mori, H WEN-CHANG CHEN |
關鍵字: | artificial synapses; benzothiazole; naphthalene-diimide (NDI); phototransistors; Suzuki coupling | 公開日期: | 2022 | 出版社: | WILEY-V C H VERLAG GMBH | 來源出版物: | ADVANCED OPTICAL MATERIALS | 摘要: | Photosynaptic transistor is considered to be a potential candidate for breaking the von Neumann bottleneck in photo-communication field. Herein, a series of donor−acceptor type and crosslinked core−shell nanoparticles are designed and applied in phototransistors as a charge-trapping electret. The outer shell is composed of poly(ethylene glycol) methyl ether methacrylate (PEGMA); while the inner core comprises donors of thiophene and bithiophene (2T) and acceptors of benzothiazole (BT), naphthalenediimide (NDI), and hexafluorobenzene-naphthalenediimide (FB-NDI). It is found that the core−shell and donor−acceptor design play an important role in the charge trapping, photoresponse, and the corresponding device performance. Accordingly, the phototransistor comprising the crosslinked core−shell nanoparticles with a donor of 2T and an acceptor of BT (PV2T-BT) produced the highest memory ratio of 105 over 104 s at a high operating voltage of −40 V. Meanwhile, the same device presented the highest paired-pulse facilitation ratio of 168% at a medium operating voltage of −1 V, and an ultra-low energy consumption of 0.0324 fJ at a low operating voltage of −1 µV. The findings in this study provide a new perspective on material design for phototransistor devices. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/627015 | ISSN: | 2195-1071 | DOI: | 10.1002/adom.202202110 |
顯示於: | 化學工程學系 |
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