About: Titania nanofiber photoanodes for dye-sensitized solar cells

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The porous structure of electrospun TiO2 nanofibers was characterized in-depth and the best performing nanofiber structure for application in dye sensitized solar cell was identified. Four types of TiO2 nanofibers were investigated (electrospun from polyvinylpyrrolidone (PVP) and hydroxypropylcellulose (HPC) as templates) with diameters 100–280 nm and surface areas 9–100 m2/g. Mesoporous TiO2 films were prepared by supramolecular templating with a block copolymer Pluronic P123. For the preparation of composite nanofiber mesoporous films, 2% or 15% of electrospun nanofibers were added. Incorporation of nanofibers into the mesoporous film results in a decrease in dye N719 adsorption but at the same time in an increase of roughness factor. Solar efficiency of composite mesoporous films increases (unlike for pure mesoporous films) even for layer thickness higher than 2.3 m. Thus we developed a simplified method for the preparation of thick mesoporous nanofiber electrodes with improved solar efficiency of 5.51% which outperforms that of pure mesoporous film (4.96%). The porous structure of electrospun TiO2 nanofibers was characterized in-depth and the best performing nanofiber structure for application in dye sensitized solar cell was identified. Four types of TiO2 nanofibers were investigated (electrospun from polyvinylpyrrolidone (PVP) and hydroxypropylcellulose (HPC) as templates) with diameters 100–280 nm and surface areas 9–100 m2/g. Mesoporous TiO2 films were prepared by supramolecular templating with a block copolymer Pluronic P123. For the preparation of composite nanofiber mesoporous films, 2% or 15% of electrospun nanofibers were added. Incorporation of nanofibers into the mesoporous film results in a decrease in dye N719 adsorption but at the same time in an increase of roughness factor. Solar efficiency of composite mesoporous films increases (unlike for pure mesoporous films) even for layer thickness higher than 2.3 m. Thus we developed a simplified method for the preparation of thick mesoporous nanofiber electrodes with improved solar efficiency of 5.51% which outperforms that of pure mesoporous film (4.96%). (en)
Title	Titania nanofiber photoanodes for dye-sensitized solar cells Titania nanofiber photoanodes for dye-sensitized solar cells (en)
skos:prefLabel	Titania nanofiber photoanodes for dye-sensitized solar cells Titania nanofiber photoanodes for dye-sensitized solar cells (en)
skos:notation	RIV/61388955:_____/14:00427509!RIV15-GA0-61388955
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA13-07724S), P(GAP108/12/0814)
http://linked.open...iv/cisloPeriodika	JUL 2014
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kavan, Ladislav Krýsová, Hana Zukal, Arnošt Procházka, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	50622
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/14:00427509
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	electrospinning; titanium dioxide; dye-sensitized solar cell (en)
http://linked.open.../riv/klicoveSlovo	electrospinning dye-sensitized solar cell titanium dioxide
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[0A8B6138010A]
http://linked.open...i/riv/nazevZdroje	Catalysis Today
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Hierarchical metal oxide architecture for dye-sensitized solar cells Materials engineering towards Innovative Graetzel solar cells
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	230
http://linked.open...iv/tvurceVysledku	Kavan, Ladislav Maixner, J. Zukal, Arnošt Procházka, Jan Krýsová, Hana Trčková-Baráková, J.
http://linked.open...ain/vavai/riv/wos	000333800300036
issn	0920-5861
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.cattod.2013.09.019

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