Synthesis and characterisation of ethynylspiropyrans for molecular electronics

Mark Christopher Walkey

doi:10.4225/23/598146f3ad443

Synthesis and characterisation of ethynylspiropyrans for molecular electronics

Mark Christopher Walkey

School of Molecular Sciences

Research output: Thesis › Doctoral Thesis

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Abstract

Due to the impending end of Moore's Law, new materials are being explored to replace silicon as the basis of electronics. Photochemical molecular switches such as spiropyrans are candidates to be used in "molecular electronics ". In this work a series of mono- and dialkynyl spiropyrans were synthesised, to which ruthenium moieties and gold-binding groups were attached. The addition of a ruthenium centre to one spiropyran increased the stability of its photogenerated form by a factor of 22. Measurement of the difference in conductivity between two states of another spiropyran showed a 35-fold increase for the open, protonated form.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Piggott, Matthew, Supervisor Koutsantonis, George, Supervisor
Award date	30 Jun 2017
DOIs	https://doi.org/10.4225/23/598146f3ad443
Publication status	Unpublished - 2017

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10.4225/23/598146f3ad443

THESIS - DOCTOR OF PHILOSOPHY - WALKEY Mark Christopher - 2017
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Cite this

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title = "Synthesis and characterisation of ethynylspiropyrans for molecular electronics",

abstract = "Due to the impending end of Moore's Law, new materials are being explored to replace silicon as the basis of electronics. Photochemical molecular switches such as spiropyrans are candidates to be used in {"}molecular electronics {"}. In this work a series of mono- and dialkynyl spiropyrans were synthesised, to which ruthenium moieties and gold-binding groups were attached. The addition of a ruthenium centre to one spiropyran increased the stability of its photogenerated form by a factor of 22. Measurement of the difference in conductivity between two states of another spiropyran showed a 35-fold increase for the open, protonated form.",

keywords = "Chemical synthesis, Molecular electronics, Photochromic switches, Dihydropyrenes, Ruthenium acetylicles, Single molecule conductance, Spiropyrous",

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AU - Walkey, Mark Christopher

PY - 2017

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N2 - Due to the impending end of Moore's Law, new materials are being explored to replace silicon as the basis of electronics. Photochemical molecular switches such as spiropyrans are candidates to be used in "molecular electronics ". In this work a series of mono- and dialkynyl spiropyrans were synthesised, to which ruthenium moieties and gold-binding groups were attached. The addition of a ruthenium centre to one spiropyran increased the stability of its photogenerated form by a factor of 22. Measurement of the difference in conductivity between two states of another spiropyran showed a 35-fold increase for the open, protonated form.

AB - Due to the impending end of Moore's Law, new materials are being explored to replace silicon as the basis of electronics. Photochemical molecular switches such as spiropyrans are candidates to be used in "molecular electronics ". In this work a series of mono- and dialkynyl spiropyrans were synthesised, to which ruthenium moieties and gold-binding groups were attached. The addition of a ruthenium centre to one spiropyran increased the stability of its photogenerated form by a factor of 22. Measurement of the difference in conductivity between two states of another spiropyran showed a 35-fold increase for the open, protonated form.

KW - Chemical synthesis

KW - Molecular electronics

KW - Photochromic switches

KW - Dihydropyrenes

KW - Ruthenium acetylicles

KW - Single molecule conductance

KW - Spiropyrous

U2 - 10.4225/23/598146f3ad443

DO - 10.4225/23/598146f3ad443

M3 - Doctoral Thesis

ER -

Synthesis and characterisation of ethynylspiropyrans for molecular electronics

Abstract

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