All-photonic multifunctional molecular logic device

Joakim Andréasson, Uwe Pischel, Stephen D. Straight, Thomas A. Moore, Ana L. Moore, Devens Gust

Research output: Contribution to journalArticle

215 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)11641-11648
Number of pages8
JournalJournal of the American Chemical Society
Volume133
Issue number30
DOIs
Publication statusPublished - Aug 3 2011

    Fingerprint

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this