A dihydroindolizine-porphyrin dyad as molecule-based all-photonic and and NAND gates

Joakim Andréasson; Yuichi Terazono; Mattias P. Eng; Ana Moore; Thomas Moore; Devens Gust

doi:10.1016/j.dyepig.2010.03.033

A dihydroindolizine-porphyrin dyad as molecule-based all-photonic and and NAND gates

Joakim Andréasson, Yuichi Terazono, Mattias P. Eng, Ana Moore, Thomas Moore, Devens Gust

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

A molecular dyad consisting of a photochromic dihydroindolizine unit covalently linked to a porphyrin performs, when illuminated through a third-harmonic-generating crystal, the functions of both an AND and a NAND Boolean logic gate with shared all-optical inputs. The NAND gate is of particular interest as it is a so-called universal gate, and hence all other digital systems can be implemented by combinations of NAND gates. The functions of the AND and the NAND gates rely on changes in absorption and emission of the dyad in the visible spectral region upon isomerization of the photochromic unit. The change in absorption which forms the basis for the AND gate function is ascribed to the colorization/decolorization of the photochrome itself in response to the optical inputs. The variation in emission intensity which constitutes the NAND gate function is a result of the changes in redox properties of the photochrome that follow upon isomerization, such that only one of the two isomers is competent to quench the porphyrin emission by electron transfer.

Original language	English (US)
Pages (from-to)	284-289
Number of pages	6
Journal	Dyes and Pigments
Volume	89
Issue number	3
DOIs	https://doi.org/10.1016/j.dyepig.2010.03.033
State	Published - Jun 2011

Keywords

Chromophores
Logic gates
Molecular devices
Photochemistry
Photochromism
Porphyrinoids

ASJC Scopus subject areas

Chemical Engineering(all)
Process Chemistry and Technology

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10.1016/j.dyepig.2010.03.033

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title = "A dihydroindolizine-porphyrin dyad as molecule-based all-photonic and and NAND gates",

abstract = "A molecular dyad consisting of a photochromic dihydroindolizine unit covalently linked to a porphyrin performs, when illuminated through a third-harmonic-generating crystal, the functions of both an AND and a NAND Boolean logic gate with shared all-optical inputs. The NAND gate is of particular interest as it is a so-called universal gate, and hence all other digital systems can be implemented by combinations of NAND gates. The functions of the AND and the NAND gates rely on changes in absorption and emission of the dyad in the visible spectral region upon isomerization of the photochromic unit. The change in absorption which forms the basis for the AND gate function is ascribed to the colorization/decolorization of the photochrome itself in response to the optical inputs. The variation in emission intensity which constitutes the NAND gate function is a result of the changes in redox properties of the photochrome that follow upon isomerization, such that only one of the two isomers is competent to quench the porphyrin emission by electron transfer.",

keywords = "Chromophores, Logic gates, Molecular devices, Photochemistry, Photochromism, Porphyrinoids",

author = "Joakim Andr{\'e}asson and Yuichi Terazono and Eng, {Mattias P.} and Ana Moore and Thomas Moore and Devens Gust",

note = "Funding Information: This work was supported by the Swedish Research Council (VR), the European Research Council (grant ERC FP7/2007-2013 No. 203952), and the U.S. National Science Foundation (CHE-0846943). Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

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language = "English (US)",

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AU - Andréasson, Joakim

AU - Terazono, Yuichi

AU - Eng, Mattias P.

AU - Moore, Ana

AU - Moore, Thomas

AU - Gust, Devens

N1 - Funding Information: This work was supported by the Swedish Research Council (VR), the European Research Council (grant ERC FP7/2007-2013 No. 203952), and the U.S. National Science Foundation (CHE-0846943). Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

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N2 - A molecular dyad consisting of a photochromic dihydroindolizine unit covalently linked to a porphyrin performs, when illuminated through a third-harmonic-generating crystal, the functions of both an AND and a NAND Boolean logic gate with shared all-optical inputs. The NAND gate is of particular interest as it is a so-called universal gate, and hence all other digital systems can be implemented by combinations of NAND gates. The functions of the AND and the NAND gates rely on changes in absorption and emission of the dyad in the visible spectral region upon isomerization of the photochromic unit. The change in absorption which forms the basis for the AND gate function is ascribed to the colorization/decolorization of the photochrome itself in response to the optical inputs. The variation in emission intensity which constitutes the NAND gate function is a result of the changes in redox properties of the photochrome that follow upon isomerization, such that only one of the two isomers is competent to quench the porphyrin emission by electron transfer.

AB - A molecular dyad consisting of a photochromic dihydroindolizine unit covalently linked to a porphyrin performs, when illuminated through a third-harmonic-generating crystal, the functions of both an AND and a NAND Boolean logic gate with shared all-optical inputs. The NAND gate is of particular interest as it is a so-called universal gate, and hence all other digital systems can be implemented by combinations of NAND gates. The functions of the AND and the NAND gates rely on changes in absorption and emission of the dyad in the visible spectral region upon isomerization of the photochromic unit. The change in absorption which forms the basis for the AND gate function is ascribed to the colorization/decolorization of the photochrome itself in response to the optical inputs. The variation in emission intensity which constitutes the NAND gate function is a result of the changes in redox properties of the photochrome that follow upon isomerization, such that only one of the two isomers is competent to quench the porphyrin emission by electron transfer.

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KW - Photochromism

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A dihydroindolizine-porphyrin dyad as molecule-based all-photonic and and NAND gates

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