Controlling electron transfer in condensed phase with bond-specific infrared excitation

Milan Delor, Paul A. Scattergood, Igor V. Sazanovich, Theo Keane, Gregory M. Greetham, Anthony J H M Meijer, Michael Towrie, Anthony W. Parker, Julia A. Weinstein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Using an ultrafast electronic-vibrational pulse-sequence, we show that the outcome of light-induced ET can be radically altered by mode-specific infrared (IR) excitation of vibrations which are coupled to the ET-pathway. IR-control is particularly challenging in condensed phase systems due to the ultrafast timescales involved, in particular rapid intramolecular vibrational redistribution. We demonstrate how an IR-pulse following UV-excitation perturbs nuclear-electronic (vibronic) interactions within a donor-bridge-acceptor system similar in design to those utilized in (bio)chemical light-harvesting, and alters charge-transport pathways and product state yields.

Original languageEnglish
Title of host publicationPhysical Chemistry of Interfaces and Nanomaterials XIV
EditorsSophia C. Hayes, Eric R. Bittner
PublisherSPIE
Number of pages6
Volume9549
ISBN (Electronic)9781628417159
DOIs
Publication statusPublished - 10 Sep 2015
Externally publishedYes
EventPhysical Chemistry of Interfaces and Nanomaterials XIV - San Diego, United States
Duration: 9 Aug 201512 Aug 2015
Conference number: XIV

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume9549
ISSN (Electronic)0277-786X

Conference

ConferencePhysical Chemistry of Interfaces and Nanomaterials XIV
CountryUnited States
CitySan Diego
Period9/08/1512/08/15

Fingerprint

Electron Transfer
electron transfer
Infrared
Excitation
Infrared radiation
Electrons
Pathway
pulses
electronics
Electronics
excitation
Charge Transport
Harvesting
Redistribution
vibration
Charge transfer
Time Scales
products
Vibration
interactions

Cite this

Delor, M., Scattergood, P. A., Sazanovich, I. V., Keane, T., Greetham, G. M., Meijer, A. J. H. M., ... Weinstein, J. A. (2015). Controlling electron transfer in condensed phase with bond-specific infrared excitation. In S. C. Hayes, & E. R. Bittner (Eds.), Physical Chemistry of Interfaces and Nanomaterials XIV (Vol. 9549). [95490U] (Proceedings of SPIE; Vol. 9549). SPIE. https://doi.org/10.1117/12.2189056
Delor, Milan ; Scattergood, Paul A. ; Sazanovich, Igor V. ; Keane, Theo ; Greetham, Gregory M. ; Meijer, Anthony J H M ; Towrie, Michael ; Parker, Anthony W. ; Weinstein, Julia A. / Controlling electron transfer in condensed phase with bond-specific infrared excitation. Physical Chemistry of Interfaces and Nanomaterials XIV. editor / Sophia C. Hayes ; Eric R. Bittner. Vol. 9549 SPIE, 2015. (Proceedings of SPIE).
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abstract = "Using an ultrafast electronic-vibrational pulse-sequence, we show that the outcome of light-induced ET can be radically altered by mode-specific infrared (IR) excitation of vibrations which are coupled to the ET-pathway. IR-control is particularly challenging in condensed phase systems due to the ultrafast timescales involved, in particular rapid intramolecular vibrational redistribution. We demonstrate how an IR-pulse following UV-excitation perturbs nuclear-electronic (vibronic) interactions within a donor-bridge-acceptor system similar in design to those utilized in (bio)chemical light-harvesting, and alters charge-transport pathways and product state yields.",
keywords = "Electron transfer, photoinduced charge separation, two-dimensional infra-red, vibronic coupling",
author = "Milan Delor and Scattergood, {Paul A.} and Sazanovich, {Igor V.} and Theo Keane and Greetham, {Gregory M.} and Meijer, {Anthony J H M} and Michael Towrie and Parker, {Anthony W.} and Weinstein, {Julia A.}",
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Delor, M, Scattergood, PA, Sazanovich, IV, Keane, T, Greetham, GM, Meijer, AJHM, Towrie, M, Parker, AW & Weinstein, JA 2015, Controlling electron transfer in condensed phase with bond-specific infrared excitation. in SC Hayes & ER Bittner (eds), Physical Chemistry of Interfaces and Nanomaterials XIV. vol. 9549, 95490U, Proceedings of SPIE, vol. 9549, SPIE, Physical Chemistry of Interfaces and Nanomaterials XIV, San Diego, United States, 9/08/15. https://doi.org/10.1117/12.2189056

Controlling electron transfer in condensed phase with bond-specific infrared excitation. / Delor, Milan; Scattergood, Paul A.; Sazanovich, Igor V.; Keane, Theo; Greetham, Gregory M.; Meijer, Anthony J H M; Towrie, Michael; Parker, Anthony W.; Weinstein, Julia A.

Physical Chemistry of Interfaces and Nanomaterials XIV. ed. / Sophia C. Hayes; Eric R. Bittner. Vol. 9549 SPIE, 2015. 95490U (Proceedings of SPIE; Vol. 9549).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Controlling electron transfer in condensed phase with bond-specific infrared excitation

AU - Delor, Milan

AU - Scattergood, Paul A.

AU - Sazanovich, Igor V.

AU - Keane, Theo

AU - Greetham, Gregory M.

AU - Meijer, Anthony J H M

AU - Towrie, Michael

AU - Parker, Anthony W.

AU - Weinstein, Julia A.

PY - 2015/9/10

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N2 - Using an ultrafast electronic-vibrational pulse-sequence, we show that the outcome of light-induced ET can be radically altered by mode-specific infrared (IR) excitation of vibrations which are coupled to the ET-pathway. IR-control is particularly challenging in condensed phase systems due to the ultrafast timescales involved, in particular rapid intramolecular vibrational redistribution. We demonstrate how an IR-pulse following UV-excitation perturbs nuclear-electronic (vibronic) interactions within a donor-bridge-acceptor system similar in design to those utilized in (bio)chemical light-harvesting, and alters charge-transport pathways and product state yields.

AB - Using an ultrafast electronic-vibrational pulse-sequence, we show that the outcome of light-induced ET can be radically altered by mode-specific infrared (IR) excitation of vibrations which are coupled to the ET-pathway. IR-control is particularly challenging in condensed phase systems due to the ultrafast timescales involved, in particular rapid intramolecular vibrational redistribution. We demonstrate how an IR-pulse following UV-excitation perturbs nuclear-electronic (vibronic) interactions within a donor-bridge-acceptor system similar in design to those utilized in (bio)chemical light-harvesting, and alters charge-transport pathways and product state yields.

KW - Electron transfer

KW - photoinduced charge separation

KW - two-dimensional infra-red

KW - vibronic coupling

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M3 - Conference contribution

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BT - Physical Chemistry of Interfaces and Nanomaterials XIV

A2 - Hayes, Sophia C.

A2 - Bittner, Eric R.

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Delor M, Scattergood PA, Sazanovich IV, Keane T, Greetham GM, Meijer AJHM et al. Controlling electron transfer in condensed phase with bond-specific infrared excitation. In Hayes SC, Bittner ER, editors, Physical Chemistry of Interfaces and Nanomaterials XIV. Vol. 9549. SPIE. 2015. 95490U. (Proceedings of SPIE). https://doi.org/10.1117/12.2189056