Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing
© 2019 The Royal Society of Chemistry. Spatial confinement of electrochemical reactions at solid/liquid interfaces is a mature area of research, and a central theme from cell biology to analytical chemistry. Monitoring or manipulating the kinetics of a charge transfer reaction in 2D is generally...
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| Format: | Journal Article |
| Language: | English |
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ROYAL SOC CHEMISTRY
2019
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| Online Access: | http://purl.org/au-research/grants/arc/CE140100036 http://hdl.handle.net/20.500.11937/79501 |
| _version_ | 1848764062306926592 |
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| author | Vogel, Yan Gooding, J.J. Ciampi, Simone |
| author_facet | Vogel, Yan Gooding, J.J. Ciampi, Simone |
| author_sort | Vogel, Yan |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 The Royal Society of Chemistry.
Spatial confinement of electrochemical reactions at solid/liquid interfaces is a mature area of research, and a central theme from cell biology to analytical chemistry. Monitoring or manipulating the kinetics of a charge transfer reaction in 2D is generally achieved using scanning electrochemical microscopy or multielectrode arrays, techniques that rely on moving physical probes or on a network of electrical connections. This tutorial is introducing concepts and instruments to confine faradaic electrochemical reactions in 2D without resorting to the mechanical movement of a probe, and with the simple design of one semiconducting electrode, one electrical lead and a single-channel potentiostat. We provide a theoretical background of semiconductor electrochemistry, and describe the use of localised visible light stimuli on photoconductor/liquid and semiconductor/liquid interfaces to address electrical conductivity-hence chemical reactivity-only at one specific site defined by the experimentalist. This enables shifting of the tenet of one electrode/one wire towards one wire/many electrodes. We discuss the applications of this emerging platform in the context of surface chemistry patterning, redox imaging, chemical and biological sensing, generating chemical gradients, electrocatalysis, nanotechnology and cell biology. |
| first_indexed | 2025-11-14T11:13:23Z |
| format | Journal Article |
| id | curtin-20.500.11937-79501 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:13:23Z |
| publishDate | 2019 |
| publisher | ROYAL SOC CHEMISTRY |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-795012020-08-06T03:59:32Z Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing Vogel, Yan Gooding, J.J. Ciampi, Simone Science & Technology Physical Sciences Chemistry, Multidisciplinary Chemistry PHOTOELECTROCHEMICAL MICROSCOPY SYSTEM TIO2 FILM POLYPYRROLE DEPOSITION POLYMERS PATTERN SILICON SURFACE © 2019 The Royal Society of Chemistry. Spatial confinement of electrochemical reactions at solid/liquid interfaces is a mature area of research, and a central theme from cell biology to analytical chemistry. Monitoring or manipulating the kinetics of a charge transfer reaction in 2D is generally achieved using scanning electrochemical microscopy or multielectrode arrays, techniques that rely on moving physical probes or on a network of electrical connections. This tutorial is introducing concepts and instruments to confine faradaic electrochemical reactions in 2D without resorting to the mechanical movement of a probe, and with the simple design of one semiconducting electrode, one electrical lead and a single-channel potentiostat. We provide a theoretical background of semiconductor electrochemistry, and describe the use of localised visible light stimuli on photoconductor/liquid and semiconductor/liquid interfaces to address electrical conductivity-hence chemical reactivity-only at one specific site defined by the experimentalist. This enables shifting of the tenet of one electrode/one wire towards one wire/many electrodes. We discuss the applications of this emerging platform in the context of surface chemistry patterning, redox imaging, chemical and biological sensing, generating chemical gradients, electrocatalysis, nanotechnology and cell biology. 2019 Journal Article http://hdl.handle.net/20.500.11937/79501 10.1039/c8cs00762d English http://purl.org/au-research/grants/arc/CE140100036 http://purl.org/au-research/grants/arc/DP150103065 http://purl.org/au-research/grants/arc/FL150100060 http://purl.org/au-research/grants/arc/DE160100732 http://purl.org/au-research/grants/arc/DP190100735 http://purl.org/au-research/grants/nhmrc/1091261 ROYAL SOC CHEMISTRY fulltext |
| spellingShingle | Science & Technology Physical Sciences Chemistry, Multidisciplinary Chemistry PHOTOELECTROCHEMICAL MICROSCOPY SYSTEM TIO2 FILM POLYPYRROLE DEPOSITION POLYMERS PATTERN SILICON SURFACE Vogel, Yan Gooding, J.J. Ciampi, Simone Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing |
| title | Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing |
| title_full | Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing |
| title_fullStr | Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing |
| title_full_unstemmed | Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing |
| title_short | Light-addressable electrochemistry at semiconductor electrodes: Redox imaging, mask-free lithography and spatially resolved chemical and biological sensing |
| title_sort | light-addressable electrochemistry at semiconductor electrodes: redox imaging, mask-free lithography and spatially resolved chemical and biological sensing |
| topic | Science & Technology Physical Sciences Chemistry, Multidisciplinary Chemistry PHOTOELECTROCHEMICAL MICROSCOPY SYSTEM TIO2 FILM POLYPYRROLE DEPOSITION POLYMERS PATTERN SILICON SURFACE |
| url | http://purl.org/au-research/grants/arc/CE140100036 http://purl.org/au-research/grants/arc/CE140100036 http://purl.org/au-research/grants/arc/CE140100036 http://purl.org/au-research/grants/arc/CE140100036 http://purl.org/au-research/grants/arc/CE140100036 http://purl.org/au-research/grants/arc/CE140100036 http://hdl.handle.net/20.500.11937/79501 |