A robust molecular platform for non-volatile memory devices with optical and magnetic responses

Cláudia Simão, Marta Mas-Torrent, Núria Crivillers, Vega Lloveras, Juan Manuel Artés, Pau Gorostiza, Jaume Veciana, Concepció Rovira

    Research output: Contribution to journalArticleResearchpeer-review

    140 Citations (Scopus)

    Abstract

    Bistable molecules that behave as switches in solution have long been known. Systems that can be reversibly converted between two stable states that differ in their physical properties are particularly attractive in the development of memory devices when immobilized in substrates. Here, we report a highly robust surface-confined switch based on an electroactive, persistent organic radical immobilized on indium tin oxide substrates that can be electrochemically and reversibly converted to the anion form. This molecular bistable system behaves as an extremely robust redox switch in which an electrical input is transduced into optical as well as magnetic outputs under ambient conditions. The fact that this molecular surface switch, operating at very low voltages, can be patterned and addressed locally, and also has exceptionally high long-term stability and excellent reversibility and reproducibility, makes it a very promising platform for non-volatile memory devices. © 2011 Macmillan Publishers Limited. All rights reserved.
    Original languageEnglish
    Pages (from-to)359-364
    JournalNature Chemistry
    Volume3
    Issue number5
    DOIs
    Publication statusPublished - 1 Jan 2011

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