Molecular Logic Gates and Luminescent Sensors Based on Photoinduced Electron Transfer

Amilra De Silva, S. Uchiyama

Research output: Contribution to journalArticle

62 Citations (Scopus)


The competition between Photoinduced electron transfer (PET) and other de-excitation pathways such as fluorescence and phosphorescence can be controlled within designed molecular structures. Depending on the particular design, the resulting optical output is thus a function of various inputs such as ion concentration and excitation light dose. Once digitized into binary code, these input-output patterns can be interpreted according to Boolean logic. The single-input logic types of YES and NOT cover simple sensors and the double- (or higher-) input logic types represent other gates such as AND and OR. The logic-based arithmetic processors such as half-adders and half-subtractors are also featured. Naturally, a principal application of the more complex gates is in multi-sensing contexts.
Original languageEnglish
Pages (from-to)1-28
Number of pages28
JournalTopics in Current Chemistry
Publication statusPublished - 2011

ASJC Scopus subject areas

  • Chemistry(all)

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