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master's thesis
Nanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2023. urn:nbn:hr:149:773781
Kafadar, Paulina
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Kafadar, P. (2023). Nanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:773781

Kafadar, Paulina. "Nanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:149:773781

Kafadar, Paulina. "Nanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:149:773781

Kafadar, P. (2023). 'Nanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 03 June 2024, https://urn.nsk.hr/urn:nbn:hr:149:773781

Kafadar P. Nanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2023 [cited 2024 June 03] Available at: https://urn.nsk.hr/urn:nbn:hr:149:773781

P. Kafadar, "Nanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:149:773781

Metadata
TitleNanošenje tankih manganitnih prevlaka iz otopine na staklenu podlogu
Title (english)Deposition of thin manganite coatings from solution onto a glass substrate
AuthorPaulina Kafadar
MentorJelena Macan (mentor)
Committee memberJelena Macan (predsjednik povjerenstva)
Committee memberMirela Leskovac (član povjerenstva)
Committee memberPetar Kassal (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2023-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Cilj ovog rada jest ispitivanje mogućnosti nanošenja tankih manganitnih prevlaka iz otopine uz naknadnu kristalizaciju žarenjem te u kombinaciji žarenja i intenzivne pulsirajuće svjetlosti (engl. Intense pulsed light, IPL). Provedena je sinteza lantanovog manganita (LaMnO3) limunskim postupkom s množinskim omjerima limunske kiseline i metala 2:1 i 3:1. Kao izvor metalnih kationa korišten je lantanov(III) oksid (La2O3) i manganov(II) nitrat tetrahidrat (Mn(NO3)2·4H2O). Zbog velikog potencijala ovako pripremljenih tankih filmova za upotrebu u perovskitnim solarnim ćelijama, ispitano je kako uvjeti priprave i nanošenja utječu na homogenost i kristalnost prevlake. Morfološke karakteristike pripremljenih uzoraka tankih filmova određene su pretražnim elektronskim mikroskopom. Za identifikaciju različitih faza korištena je rendgenska difrakcijska analiza za mali upadni kut. Daljnja istraživanja usmjerena su na ispitivanje optičkih svojstava. Optička transmitancija i reflektancija izmjerene su UV-Vis spektroskopijom. Dobiveni rezultati pokazuju da je film s najvećim udjelom LaMnO3 faze pripravljen iz otopine u kojoj je množinski omjer limunske kiseline i metalnih kationa 3:1, na staklu debljine 1/8 inča i žaren na temperaturi od 800 °C. Optički procjep je određen filmove izabrane na temelju SEM analize, a vrijednosti za sve izabrane filmove su podjednake i iznose ~ 1,4 eV.
Abstract (english)
The aim of this study is to examine the possibility of applying thin manganite coatings from the solution with subsequent crystallization by annealing and in combination with annealing and intense pulsating light (IPL). Synthesis of lanthanum manganite (LaMnO3) was carried out by citric acid method, using citric acid and metal molar ratios of 2:1 and 3:1. Lanthanum(III) oxide (La2O3) and manganese(II) nitrate tetrahydrate (Mn(NO3)2·4H2O) were used as a source of metal cations. Due to the high potential of prepared thin films for use in perovskite solar cells, it was examined how the conditions of preparation and application affect the homogeneity and crystallinity of the coating. The morphological characteristics of the prepared samples were determined by a scanning electron microscope. Grazing incidence X-ray diffraction analysis was used to identify different phases. Further research is focused on testing optical properties. Optical transmitance and reflectance were measured by UV-Vis spectroscopy. The obtained results show that the film with the best properties is the one prepared from a solution with the molar ratio of citric acid to metal cations 3:1, on glass with a thickness of 1/8 inch and annealed at a temperature of 800 °C. The optical gap was determined by the films selected on the basis of SEM analysis, and the values for all selected films are equal and amount to ~ 1.4 eV.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:773781
ProjectNumber: UIP-2020-02-9139
Title: Fotonsko sinteriranje inkjet ispisanih elektrokemijskih senzora i biosenzora na plastičnim podlogama
Title: Photonic sintering for inkjet printed electrochemical sensors and biosensors on plastic substrates
Acronym: PrintEChemSens
Leader: Petar Kassal
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: UIP
Study programmeTitle: Chemical Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-11-21 14:27:17