In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells

The efficiency of Hematite (α-Fe2O3) photo-anodes is thought to be limited by ultrafast lattice distortions or polarons. Here, we use an optical-control method with photocurrent detection to track small polarons in real time and demonstrate that they impact photoelectrochemical cell activity

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Autores principales:	Ernest Pastor, Ji-Sang Park, Ludmilla Steier, Sunghyun Kim, Michael Grätzel, James R. Durrant, Aron Walsh, Artem A. Bakulin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Science Q
Acceso en línea:	https://doaj.org/article/48428c50c4884f06bb589f8fa8a021c8
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id	oai:doaj.org-article:48428c50c4884f06bb589f8fa8a021c8
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spelling	oai:doaj.org-article:48428c50c4884f06bb589f8fa8a021c82021-12-02T16:51:01ZIn situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells10.1038/s41467-019-11767-92041-1723https://doaj.org/article/48428c50c4884f06bb589f8fa8a021c82019-09-01T00:00:00Zhttps://doi.org/10.1038/s41467-019-11767-9https://doaj.org/toc/2041-1723The efficiency of Hematite (α-Fe2O3) photo-anodes is thought to be limited by ultrafast lattice distortions or polarons. Here, we use an optical-control method with photocurrent detection to track small polarons in real time and demonstrate that they impact photoelectrochemical cell activityErnest PastorJi-Sang ParkLudmilla SteierSunghyun KimMichael GrätzelJames R. DurrantAron WalshArtem A. BakulinNature PortfolioarticleScienceQENNature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q Ernest Pastor Ji-Sang Park Ludmilla Steier Sunghyun Kim Michael Grätzel James R. Durrant Aron Walsh Artem A. Bakulin In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells
description	The efficiency of Hematite (α-Fe2O3) photo-anodes is thought to be limited by ultrafast lattice distortions or polarons. Here, we use an optical-control method with photocurrent detection to track small polarons in real time and demonstrate that they impact photoelectrochemical cell activity
format	article
author	Ernest Pastor Ji-Sang Park Ludmilla Steier Sunghyun Kim Michael Grätzel James R. Durrant Aron Walsh Artem A. Bakulin
author_facet	Ernest Pastor Ji-Sang Park Ludmilla Steier Sunghyun Kim Michael Grätzel James R. Durrant Aron Walsh Artem A. Bakulin
author_sort	Ernest Pastor
title	In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells
title_short	In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells
title_full	In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells
title_fullStr	In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells
title_full_unstemmed	In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells
title_sort	in situ observation of picosecond polaron self-localisation in α-fe2o3 photoelectrochemical cells
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/48428c50c4884f06bb589f8fa8a021c8
work_keys_str_mv	AT ernestpastor insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells AT jisangpark insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells AT ludmillasteier insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells AT sunghyunkim insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells AT michaelgratzel insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells AT jamesrdurrant insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells AT aronwalsh insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells AT artemabakulin insituobservationofpicosecondpolaronselflocalisationinafe2o3photoelectrochemicalcells
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In situ observation of picosecond polaron self-localisation in α-Fe2O3 photoelectrochemical cells

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