Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensing

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Poutanen, Mikko Ahmed, Zafar Rautkari, Lauri Ikkala, Olli Priimägi, Arri 2018-05-22T14:28:27Z 2018-05-22T14:28:27Z 2018-03-20
dc.identifier.citation Poutanen , M , Ahmed , Z , Rautkari , L , Ikkala , O & Priimagi , A 2018 , ' Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensing ' ACS Macro Letters , vol 7 , no. 3 , pp. 381-386 . DOI: 10.1021/acsmacrolett.8b00093 en
dc.identifier.issn 2161-1653
dc.identifier.other PURE UUID: 06f01e40-43ac-4750-948d-a75ba01c5e2b
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description.abstract Photoisomerization of azobenzene derivatives is a versatile tool for devising light-responsive materials for a broad range of applications in photonics, robotics, microfabrication, and biomaterials science. Some applications rely on fast isomerization kinetics, while for others, bistable azobenzenes are preferred. However, solid-state materials where the isomerization kinetics depends on the environmental conditions have been largely overlooked. Herein, an approach to utilize the environmental sensitivity of isomerization kinetics is developed. It is demonstrated that thin polymer films containing hydroxyazobenzenes offer a conceptually novel platform for sensing hydrogen-bonding vapors in the environment. The concept is based on accelerating the thermal cis-trans isomerization rate through hydrogen-bond-catalyzed changes in the thermal isomerization pathway, which allows for devising a relative humidity sensor with high sensitivity and quick response to relative humidity changes. The approach is also applicable for detecting other hydrogen-bonding vapors such as methanol and ethanol. Employing isomerization kinetics of azobenzenes for vapor sensing opens new intriguing possibilities for using azobenzene molecules in the future. en
dc.format.extent 6
dc.format.extent 381-386
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries ACS Macro Letters en
dc.relation.ispartofseries Volume 7, issue 3 en
dc.rights openAccess en
dc.subject.other Organic Chemistry en
dc.subject.other Polymers and Plastics en
dc.subject.other Inorganic Chemistry en
dc.subject.other Materials Chemistry en
dc.subject.other 114 Physical sciences en
dc.title Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensing en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department Tampere University of Technology
dc.contributor.department Wood Material Science
dc.contributor.department Molecular Materials
dc.contributor.department Department of Bioproducts and Biosystems en
dc.subject.keyword Organic Chemistry
dc.subject.keyword Polymers and Plastics
dc.subject.keyword Inorganic Chemistry
dc.subject.keyword Materials Chemistry
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201805222187
dc.identifier.doi 10.1021/acsmacrolett.8b00093
dc.type.version publishedVersion

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