Flexible non-volatile optical memory thin-ﬁlmtransistor device with over 256 distinct levelsbased on an organic bicomponent blendGvido Bratina
, Egon Pavlica
, 2016, izvirni znanstveni članek
Opis: Flexible non-volatile optical memory thin-ﬁlmtransistor device with over 256 distinct levelsbased on an organic bicomponent blendTim Leydecker1, Martin Herder2, Egon Pavlica3,GvidoBratina3,StefanHecht2*, Emanuele Orgiu1*and Paolo Samorì1*Organic nanomaterials are attracting a great deal of interest for use in ﬂexible electronic applications such as logiccircuits, displays and solar cells. These technologies have already demonstrated good performances, but ﬂexible organicmemories are yet to deliver on all their promise in terms of volatility, operational voltage, write/erase speed, as well asthe number of distinct attainable levels. Here, we report a multilevel non-volatile ﬂexible optical memory thin-ﬁlmtransistor based on a blend of a reference polymer semiconductor, namely poly(3-hexylthiophene), and a photochromicdiarylethene, switched with ultraviolet and green light irradiation. A three-terminal device featuring over 256 (8 bitstorage) distinct current levels was fabricated, the memory states of which could be switched with 3 ns laser pulses.We also report robustness over 70 write–erase cycles and non-volatility exceeding 500 days. The device was implementedon a ﬂexible polyethylene terephthalate substrate, validating the concept for integration into wearable electronics andsmart nanodevices.
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