An All-Photonic Molecular Keypad Lock
Journal article, 2009

An all photonic molecular keypad lock with a reset capacity, that is capable of distinguishing one two-digit code out of eight possible combinations were described. The synthesis and characterization of triad 1 with distilled 2-methyltetrahydrofuran as the solvent for spectroscopic measurement were reported, where the samples were degassed by size freeze-pump-thaw cycles to a final pressure. The functional principle of a keypad lock is that it gives an output signal only when given the correct inputs in the correct order, also the capacity of the triad to perform as a two-input PAND gate with reset capacity are considered. The keypad lock is found to be operated by five optical signals in the UV region including fluorescence emission that signals the actual opening of the lock, which can also be used numerous times without ant photodegradation affecting the performance.

chromophores

molecular devices

logic gates

switches

circuits

photochromism

photochemistry

porphyrinoids

demultiplexer

Author

Joakim Andreasson

Chalmers, Chemical and Biological Engineering, Physical Chemistry

S. D. Straight

Arizona State University

A. L. Moore

Arizona State University

T. A. Moore

Arizona State University

D. Gust

Arizona State University

Chemistry - A European Journal

0947-6539 (ISSN) 1521-3765 (eISSN)

Vol. 15 16 3936-3939

Photochromic Systems for Solid State Molecular Electronic Devices and Light-Activated Cancer Drugs (PHOTOCHROMES)

European Commission (EC) (EC/FP7/203952), 2008-09-01 -- 2013-08-31.

Subject Categories

Physical Chemistry

Chemical Sciences

DOI

10.1002/chem.200900043

More information

Latest update

3/2/2022 3