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, United Kingdom (2011)
Bistable molecules that behave as switches in solution have been known for a long time. In particular, systems that can be reversibly converted between two stable states that differ in their physical properties are very attractive to develop memory devices when are immobilized in substrates. Here, we report on a highly robust surface-confined switch based on an electroactive persistent organic radical immobilised on ITO substrates which 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 an optical as well as magnetic output at ambient conditions. The fact that this molecular surface switch operating at very low voltages can be patterned and locally addressed together with an exceptionally high long-term stability and excellent reversibility and reproducibility, makes it a very promising platform for nonvolatile memory devices.
Partners : CSIC
Place of Publication : United Kingdom
Date of Publication : 2011/03/27