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All-Photonic Multifunctional Molecular Logic Device

Joakim Andréasson (Institutionen för kemi- och bioteknik, Fysikalisk kemi) ; U. Pischel ; S. D. Straight ; T. A. Moore ; A. L. Moore ; D. Gust
Journal of the American Chemical Society (0002-7863). Vol. 133 (2011), 30, p. 11641-11648.
[Artikel, refereegranskad vetenskaplig]

Photochromes are photoswitchable, bistable chromophores which, like transistors, can implement binary logic operations. When several photochromes are combined in one molecule, interactions between them such as energy and electron transfer allow design of simple Boolean logic gates and more complex logic devices with all-photonic inputs and outputs. Selective isomerization of individual photochromes can be achieved using light of different wavelengths, and logic outputs can employ absorption and emission properties at different wavelengths, thus allowing a single molecular species to perform several different functions, even simultaneously. Here, we report a molecule consisting of three linked photochromes that can be configured as AND, XOR, INH, half-adder, half-subtractor, multiplexer, demultiplexer, encoder, decoder, keypad lock, and logically reversible transfer gate logic devices, all with a common initial state. The system demonstrates the advantages of light-responsive molecules as multifunctional, reconfigurable nanoscale logic devices that represent an approach to true molecular information processing units.

Nyckelord: keypad lock, fluorescent-switch, encoder-decoder, gates, communication, memory, operations, platform, subtractor, complexes

Denna post skapades 2011-09-08. Senast ändrad 2011-12-15.
CPL Pubid: 145955


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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Fysikalisk kemi (2005-2014)



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Denna publikation är ett resultat av följande projekt:

Photochromic systems for solid state molecular electronic devices and light-activated cancer drugs (PHOTOCHROMES) (EC/FP7/203952)