Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System

The conversion of solar energy into chemical energy by the use of dye‐sensitized solar cells (DSSCs) and dye‐sensitized photoelectrochemical cells (DSPECs) has been considered a convenient method in recent years. Herein, DSPEC and DSSC devices are fabricated by mimicking the function of photosystem...

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Autores principales:	Anish Babu Athanas, Swarnalatha Kalaiyar
Formato:	article
Lenguaje:	EN
Publicado:	Wiley-VCH 2021
Materias:	coumarin dye-sensitized photoelectrochemical cells dye-sensitized solar cells ruthenium(II) sensitizers water splitting Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/8c9133eb276740ef8c16572bd6ee3f1a
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spelling	oai:doaj.org-article:8c9133eb276740ef8c16572bd6ee3f1a2021-11-04T09:03:08ZQuinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System2699-941210.1002/aesr.202100094https://doaj.org/article/8c9133eb276740ef8c16572bd6ee3f1a2021-11-01T00:00:00Zhttps://doi.org/10.1002/aesr.202100094https://doaj.org/toc/2699-9412The conversion of solar energy into chemical energy by the use of dye‐sensitized solar cells (DSSCs) and dye‐sensitized photoelectrochemical cells (DSPECs) has been considered a convenient method in recent years. Herein, DSPEC and DSSC devices are fabricated by mimicking the function of photosystem II in natural photosynthesis with a new quinoline‐coupled coumarin‐based ruthenium(II) dye (RQC)‐sensitized TiO2 semiconductor as the light‐harvesting center. By using the RQC‐sensitized TiO2 as the working electrode, photoelectrochemical water‐splitting reactions are effectively conducted in a phosphate buffer solution (pH = 6), with 30 mm triethanolamine as the sacrificial electron donor. Oxygen and hydrogen bubbles are evolved from the working electrode and counter electrode, respectively. By applying +0.78 V potential versus a relative hydrogen electrode, an initial photocurrent density of 11.07 mA cm−2 and a final photocurrent density of 9.66 mA cm−2 are achieved. Under this condition, a maximum photoelectrochemical water splitting efficiency of 4.98% is obtained. The photocurrent–voltage (J–V) characterization of the DSSC device fabricated with RQC under standard AM 1.5G illumination furnishes a Jsc of 11.4 mA cm−2, Voc of 0.69 V, fill factor of 0.53, and power conversion efficiency (η) of 4.16%.Anish Babu AthanasSwarnalatha KalaiyarWiley-VCHarticlecoumarindye-sensitized photoelectrochemical cellsdye-sensitized solar cellsruthenium(II) sensitizerswater splittingEnvironmental technology. Sanitary engineeringTD1-1066Renewable energy sourcesTJ807-830ENAdvanced Energy & Sustainability Research, Vol 2, Iss 11, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coumarin dye-sensitized photoelectrochemical cells dye-sensitized solar cells ruthenium(II) sensitizers water splitting Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
spellingShingle	coumarin dye-sensitized photoelectrochemical cells dye-sensitized solar cells ruthenium(II) sensitizers water splitting Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830 Anish Babu Athanas Swarnalatha Kalaiyar Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System
description	The conversion of solar energy into chemical energy by the use of dye‐sensitized solar cells (DSSCs) and dye‐sensitized photoelectrochemical cells (DSPECs) has been considered a convenient method in recent years. Herein, DSPEC and DSSC devices are fabricated by mimicking the function of photosystem II in natural photosynthesis with a new quinoline‐coupled coumarin‐based ruthenium(II) dye (RQC)‐sensitized TiO2 semiconductor as the light‐harvesting center. By using the RQC‐sensitized TiO2 as the working electrode, photoelectrochemical water‐splitting reactions are effectively conducted in a phosphate buffer solution (pH = 6), with 30 mm triethanolamine as the sacrificial electron donor. Oxygen and hydrogen bubbles are evolved from the working electrode and counter electrode, respectively. By applying +0.78 V potential versus a relative hydrogen electrode, an initial photocurrent density of 11.07 mA cm−2 and a final photocurrent density of 9.66 mA cm−2 are achieved. Under this condition, a maximum photoelectrochemical water splitting efficiency of 4.98% is obtained. The photocurrent–voltage (J–V) characterization of the DSSC device fabricated with RQC under standard AM 1.5G illumination furnishes a Jsc of 11.4 mA cm−2, Voc of 0.69 V, fill factor of 0.53, and power conversion efficiency (η) of 4.16%.
format	article
author	Anish Babu Athanas Swarnalatha Kalaiyar
author_facet	Anish Babu Athanas Swarnalatha Kalaiyar
author_sort	Anish Babu Athanas
title	Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System
title_short	Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System
title_full	Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System
title_fullStr	Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System
title_full_unstemmed	Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System
title_sort	quinoline‐coupled coumarin‐based ruthenium(ii) dye sensitizer for photoelectrochemical cells and solar cells: a mimic for an artificial‐light‐harvesting system
publisher	Wiley-VCH
publishDate	2021
url	https://doaj.org/article/8c9133eb276740ef8c16572bd6ee3f1a
work_keys_str_mv	AT anishbabuathanas quinolinecoupledcoumarinbasedrutheniumiidyesensitizerforphotoelectrochemicalcellsandsolarcellsamimicforanartificiallightharvestingsystem AT swarnalathakalaiyar quinolinecoupledcoumarinbasedrutheniumiidyesensitizerforphotoelectrochemicalcellsandsolarcellsamimicforanartificiallightharvestingsystem
_version_	1718444975034728448

Quinoline‐Coupled Coumarin‐Based Ruthenium(II) Dye Sensitizer for Photoelectrochemical Cells and Solar Cells: A Mimic for an Artificial‐Light‐Harvesting System

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