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Advanced Nonvolatile Organic Optical Memory Using Self-Assembled Monolayers of Porphyrin–Fullerene Dyadsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 мая 2022 г.
- Авторы: Frolova Lyubov A., Furmansky Yulia, Shestakov Alexander F., Emelianov Nikita A., Liddell Paul A., Gust Devens, Visoly-Fisher Iris, Troshin Pavel A.
- Журнал: ACS applied materials & interfaces
- Том: 14
- Номер: 13
- Год издания: 2022
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 15461
- Последняя страница: 15467
- DOI: 10.1021/acsami.1c24979
- Аннотация: Photo-switchable organic field-effect transistors (OFETs) represent an important platform for designing memory devices for a diverse array of products including security (brand-protection, copy-protection, keyless entry, etc.), credit cards, tickets, and multiple wearable organic electronics applications. Herein, we present a new concept by introducing self-assembled monolayersof donor−acceptor porphyrin−fullerene dyads as light-responsive triggers modulating the electrical characteristics of OFETs and thus pave the way to the development of advanced nonvolatile optical memory. The devices demonstrated wide memory windows,high programming speeds, and long retention times. Furthermore, we show a remarkable effect of the orientation of the fullerene−polymer dyads at the dielectric/semiconductor interface on the device behavior. In particular, the dyads anchored to the dielectric by the porphyrin part induced a reversible photoelectrical switching of OFETs, which is characteristic of flash memory elements. On thecontrary, the devices utilizing the dyad anchored by the fullerene moiety demonstrated irreversible switching, thus operating as read-only memory (ROM). A mechanism explaining this behavior is proposed using theoretical DFT calculations. The results suggest thepossibility of revisiting hundreds of known donor−acceptor dyads designed previously for artificial photosynthesis or other purposesas versatile optical triggers in advanced OFET-based multibit memory devices for emerging electronic applications.
- Добавил в систему: Емельянов Никита Александрович