About: A method for electrochemical growth of homogeneous nanocrystalline ZnO thin films at room temperature

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About: A method for electrochemical growth of homogeneous nanocrystalline ZnO thin films at room temperature Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We report the electrodeposition at room temperature (25 °C), in a potentiostatic mode, of cohesive nanocrystalline ZnO thin films from an oxygenated zinc chloride bath. It is shown that the bath saturation by molecular oxygen precursor is a key parameter to grow the oxide at low temperature. After low O2 bubbling the solution is not saturated and the surface is more or less passivated by an amorphous Zn(OH)2 veil-like thin layer. After intense and long molecular oxygen bubbling, the current density rapidly increases after an induction period of about 800 s. At the foot of the current onset, crystallized ZnO seeds appear entrapped in the initial amorphous layer. The film nucleation is a delayed process. The electrode is subsequently covered by a homogeneous ZnO film with structures of several hundreds of nanometers in length composed of nanocrystals with size of about 17 nm. We report the electrodeposition at room temperature (25 °C), in a potentiostatic mode, of cohesive nanocrystalline ZnO thin films from an oxygenated zinc chloride bath. It is shown that the bath saturation by molecular oxygen precursor is a key parameter to grow the oxide at low temperature. After low O2 bubbling the solution is not saturated and the surface is more or less passivated by an amorphous Zn(OH)2 veil-like thin layer. After intense and long molecular oxygen bubbling, the current density rapidly increases after an induction period of about 800 s. At the foot of the current onset, crystallized ZnO seeds appear entrapped in the initial amorphous layer. The film nucleation is a delayed process. The electrode is subsequently covered by a homogeneous ZnO film with structures of several hundreds of nanometers in length composed of nanocrystals with size of about 17 nm. (en)
Title	A method for electrochemical growth of homogeneous nanocrystalline ZnO thin films at room temperature A method for electrochemical growth of homogeneous nanocrystalline ZnO thin films at room temperature (en)
skos:prefLabel	A method for electrochemical growth of homogeneous nanocrystalline ZnO thin films at room temperature A method for electrochemical growth of homogeneous nanocrystalline ZnO thin films at room temperature (en)
skos:notation	RIV/61388955:_____/09:00329255!RIV10-AV0-61388955
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA400400909), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	28
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Jirka, Ivan
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	301330
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/09:00329255
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	electrodeposition; ZnO; room temperature; photoluminiscence (en)
http://linked.open.../riv/klicoveSlovo	room temperature photoluminiscence electrodeposition ZnO
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[88042E49CDAB]
http://linked.open...i/riv/nazevZdroje	Electrochimica acta
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Zeolite-based membranes for water-gas-shift membrane reactors
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	54
http://linked.open...iv/tvurceVysledku	Jirka, Ivan Pauporté, T.
http://linked.open...ain/vavai/riv/wos	000271151600060
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0013-4686
number of pages	7 (xsd:int)

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