Diarylethenes for memories and switches

Article Abstract:

The thermally irreversible photochromic compounds, diarylethenes, are remarkably fatigue resistant and as such find use in the optoelectronic devices. Data show that the aryl groups furan, thiophene, selenophene, or thiazole rings confer thermal stability to both open-and closed-ring isomers. Structural modifications of these compounds for more robust use are discussed.

Heterocyclic compounds, Optoelectronic devices

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Fulgides for memories and switches

Article Abstract:

This review traces the history and evolution of the photochromic compounds, the fulgides. The compounds exhibit photochromic properties from the aromatic ring on the exo-methylene carbon atom. Research efforts toward developing fulgides for their use in photon-controlled memory devices and switches are discussed.

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Spiropyrans and spirooxazines for memories and switches

Article Abstract:

Spiropyrans and spirooxazines exhibit photochromic reactions and undergo reversible cleavage of C-O bond in their respective rings. This review discusses the structural, nonlinear optical properties, and the real-time holography of these photochromic systems with reference to their usage in memories and switches.

Israel, Holography

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