Stable and reversible optoelectrical dual-mode data storage based on a ferrocenlylspiropyran molecule

Abstract

Articles you may be interested inHigh-performance optoelectrical dual-mode memory based on spiropyran-containing polyimide Appl. Phys. Lett. 97, 253304 (2010); 10.1063/1.3529453Nanometer-scale data storage on 3-phenyl-1-ureidonitrile thin film using scanning tunneling microscopy

Spiropyran Polymeric Microcapillary Coatings for Photodetection of Solvent Polarity

“…Since their discovery by Fisher and Hirshberg in 1952 5 , spiropyrans have become one of the most popular class of photochromic compounds in science due to their potential applicability in new technologies like data recording and storage, optical switching displays and nonlinear optics [6][7][8][9][10][11][12][13] . Spiropyrans offer new routes for the fabrication of multifunctional materials since it is possible to take advantage of their photo-reversible interconversion between the two thermodynamically stable states of the molecule: a spiropyran (SP) form, and a merocyanine (MC) form, which have dramatically different charge, polarity and molecular conformations 14 .…”

Research advances in the synthesis and applications of ferrocene‐based electro and photo responsive materials

“…The application of spiropyrans is usually become limited due to non‐controllable reversion process which results in the loss of patterns. A keen effort has been executed to solve this problem by incorporating ferrocene moiety with spiropyran for information storage application . The prepared films exhibited good reversibility, long retention time and low threshold voltage as compared to the spiropyran without ferrocene moiety when exposed to U V /Vis light (Scheme ) .…”

“…Ma et al . synthesized a spiropyran based molecule by incorporating ferrocene (SPFc) . They prepared SPFc based film which showed reversible electrical switching properties along with long retention time and low threshold voltage.…”

“…(a) U V /Vis spectrum of SPFc, (b) Exhibition of optical data storage application on SPFc‐PMMA film and (c) recording‐erasing cycles of SPFc‐PMMA film. Adopted with permission from ref. Copyright 2009 American Institute of Physics…”

“…It should also be noted that spiropyrans can revert thermally to the closed ring colorless form very quickly, so the addition of ferrocene was incorporated to avoid this problem and to increase the fatigue resistance of the spiropyran‐based systems. Ferrocene being a robust system can provide sensitive redox states and better chemical as well as thermal stability . It was found that ferrocene had increased the thermal stability of the colored ring‐open form of spironaphthoxazine.…”