Rodyti trumpą aprašą

dc.contributor.authorMorkvėnaitė-Vilkončienė, Inga
dc.contributor.authorPetrašauskienė, Neringa
dc.contributor.authorZinovičius, Antanas
dc.contributor.authorVilkončius, Raimundas
dc.contributor.authorAlaburdaitė, Rasa
dc.contributor.authorPaluckienė, Edita
dc.contributor.authorRamanauskas, Rimantas
dc.contributor.authorRamanavičius, Arūnas
dc.date.accessioned2023-09-18T16:59:24Z
dc.date.available2023-09-18T16:59:24Z
dc.date.issued2017
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/118512
dc.description.abstractScanning electrochemical microscopy (SECM) is powerful tool for investigation of surfaces of different conductivity [1]. From current vs distance dependencies it is possible to extract information about surface reactivity, by calculating kinetic constant [2]. The easiest way to perform these experiments is to measure oxygen reduction current [3]. While approaching the surface, the measured signal depends on the conductivity of the surface and (i) if the surface is conducting then close to the surface current signal is increasing, (ii) if the surface is non-conducting then the signal is decreasing. If surface is semiconducting the current vs dependence can be observed between these two characteristics. Out of many different semiconductor layers copper sulfide is interesting one, due to their metal-like electrical conductivity, chemical-sensing capability and ideal characteristics for solar energy conversion. Consequently, copper sulfides modified polymers are used: (i) as the conductive substrates for the deposition of metal and semiconductors; (ii) as gas sensors functioning at temperatures tending to room temperature; (iii) as polarizers of infrared radiation; and (iv) as active absorbents of radio waves. Electrically conductive CuxS layers can be prepared by the sorption-diffusion method, described earlier [4]. By this method, the surface of a polymer is initially treated by the solution containing sulfurization agent, and then by the aqueous solution of metal salt. Each step of deposition of different layers can be investigated by SECM. The main aim of this work was to investigate differently modified electrically conductive CuxS layers. Normalized current dependence on distance from CuxS differently modified surface. Oxygen reduction current at -500 mV was measured by moving ultramicroelectrode (radius of 5 μm) in three electrodes electrochemical cell, with platinum counter and Ag/AgCl reference electrode.eng
dc.format.extentp. 114
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.subjectFM02 - Energijos šaltinių medžiagos ir technologijos / Materials and technologies of energy sources
dc.titleApplication of scanning electrochemical microscopy for investigation of CuxS layers
dc.typeKonferencijos pranešimo santrauka / Conference presentation abstract
dcterms.references4
dc.type.pubtypeT2 - Konferencijos pranešimo tezės / Conference presentation abstract
dc.contributor.institutionValstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras Vilniaus Gedimino technikos universitetas
dc.contributor.institutionKauno technologijos universitetas
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.institutionValstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras
dc.contributor.institutionValstybinis mokslinių tyrimų institutas Fizinių ir technologijos mokslų centras Vilniaus universitetas
dc.contributor.facultyMechanikos fakultetas / Faculty of Mechanics
dc.contributor.facultyStatybos fakultetas / Faculty of Civil Engineering
dc.subject.researchfieldN 003 - Chemija / Chemistry
dc.subject.ltspecializationsL104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies
dc.subject.enCuxS layers
dc.subject.enScanning electrochemical microscopy (SECM)
dc.subject.enconductivity
dcterms.sourcetitleSECM-9 : The 9th workshop on scanning electrochemical microscopy and related techniques, August 13 -17, 2017, Serock, Poland : programme & book of abstracts / Organized by Institute of Physical Chemistry Polish Academy of Sciences
dc.description.issue49-p
dc.publisher.name[s.n.]
dc.publisher.cityWarsaw
dc.identifier.elaba24014771


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