Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC

Poly(3,4-propylenedioxythiophene (PEDOT) counter electrodes are considered to be one of the most promising alternatives to expensive Pt-based counter electrodes in dye sensitized solar cells (DSSC). In the present study, we prepared PEDOT counter electrodes with various thicknesses through scalable...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sourava Chandra Pradhan, Suraj Soman
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	PEDOT Counter electrode DSSC EIS Industrial electrochemistry TP250-261
Acceso en línea:	https://doaj.org/article/3edf733400414baf8e9cb8363cb9ed8b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3edf733400414baf8e9cb8363cb9ed8b
record_format	dspace
spelling	oai:doaj.org-article:3edf733400414baf8e9cb8363cb9ed8b2021-11-22T04:33:11ZEffect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC2666-845910.1016/j.rsurfi.2021.100030https://doaj.org/article/3edf733400414baf8e9cb8363cb9ed8b2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666845921000222https://doaj.org/toc/2666-8459Poly(3,4-propylenedioxythiophene (PEDOT) counter electrodes are considered to be one of the most promising alternatives to expensive Pt-based counter electrodes in dye sensitized solar cells (DSSC). In the present study, we prepared PEDOT counter electrodes with various thicknesses through scalable electropolymerization technique using a nontoxic mixture of sodium dodecyl sulfate (SDC) in water medium, which provides the opportunity for scale up and commercialization. The time scale for electropolymerization was varied systematically to tune the thickness and uniformity of PEDOT film. The PEDOT films and their interaction with conventional iodide/triiodide (I−/I3−) electrolyte was studied using various electrical and optical characterization techniques. The catalytic activity of porous PEDOT films were found to be decreasing with an increase in thickness. DSSCs fabricated using PEDOT counter electrodes having lower thickness of 33 nm (deposited with 5 s polymerization time) showed superior power conversion efficiency of 10.39%, followed by PEDOT counter electrodes having 65 nm and 120 nm thickness deposited with polymerization time of 10 s and 15 s delivering power conversion efficiencies of 8.11% and 7.45% respectively. Electrochemical Impedance Spectroscopy (EIS) was used to investigate the role of variation in PEDOT thickness with various charge transfer processes at the electrolyte/counter electrode interface influencing PV performance.Sourava Chandra PradhanSuraj SomanElsevierarticlePEDOTCounter electrodeDSSCEISIndustrial electrochemistryTP250-261ENResults in Surfaces and Interfaces, Vol 5, Iss , Pp 100030- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	PEDOT Counter electrode DSSC EIS Industrial electrochemistry TP250-261
spellingShingle	PEDOT Counter electrode DSSC EIS Industrial electrochemistry TP250-261 Sourava Chandra Pradhan Suraj Soman Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC
description	Poly(3,4-propylenedioxythiophene (PEDOT) counter electrodes are considered to be one of the most promising alternatives to expensive Pt-based counter electrodes in dye sensitized solar cells (DSSC). In the present study, we prepared PEDOT counter electrodes with various thicknesses through scalable electropolymerization technique using a nontoxic mixture of sodium dodecyl sulfate (SDC) in water medium, which provides the opportunity for scale up and commercialization. The time scale for electropolymerization was varied systematically to tune the thickness and uniformity of PEDOT film. The PEDOT films and their interaction with conventional iodide/triiodide (I−/I3−) electrolyte was studied using various electrical and optical characterization techniques. The catalytic activity of porous PEDOT films were found to be decreasing with an increase in thickness. DSSCs fabricated using PEDOT counter electrodes having lower thickness of 33 nm (deposited with 5 s polymerization time) showed superior power conversion efficiency of 10.39%, followed by PEDOT counter electrodes having 65 nm and 120 nm thickness deposited with polymerization time of 10 s and 15 s delivering power conversion efficiencies of 8.11% and 7.45% respectively. Electrochemical Impedance Spectroscopy (EIS) was used to investigate the role of variation in PEDOT thickness with various charge transfer processes at the electrolyte/counter electrode interface influencing PV performance.
format	article
author	Sourava Chandra Pradhan Suraj Soman
author_facet	Sourava Chandra Pradhan Suraj Soman
author_sort	Sourava Chandra Pradhan
title	Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC
title_short	Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC
title_full	Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC
title_fullStr	Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC
title_full_unstemmed	Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC
title_sort	effect of thickness on charge transfer properties of conductive polymer based pedot counter electrodes in dssc
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/3edf733400414baf8e9cb8363cb9ed8b
work_keys_str_mv	AT souravachandrapradhan effectofthicknessonchargetransferpropertiesofconductivepolymerbasedpedotcounterelectrodesindssc AT surajsoman effectofthicknessonchargetransferpropertiesofconductivepolymerbasedpedotcounterelectrodesindssc
_version_	1718418155525636096

Effect of thickness on charge transfer properties of conductive polymer based PEDOT counter electrodes in DSSC

Ejemplares similares