All-Photonic Multifunctional Molecular Logic Device
Journal article, 2011

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.

memory

platform

communication

gates

keypad lock

encoder-decoder

operations

complexes

fluorescent-switch

subtractor

Author

Joakim Andreasson

Chalmers, Chemical and Biological Engineering, Physical Chemistry

U. Pischel

University of Huelva

S. D. Straight

Arizona State University

T. A. Moore

Arizona State University

A. L. Moore

Arizona State University

D. Gust

Arizona State University

Journal of the American Chemical Society

0002-7863 (ISSN) 1520-5126 (eISSN)

Vol. 133 30 11641-11648

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

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

Subject Categories

Chemical Sciences

DOI

10.1021/ja203456h

More information

Created

10/8/2017