Utjecaj uvjeta kemijske depozicije na morfologiju ZnO slojeva

undergraduate thesis

• Title (english): Influence of chemical deposition conditions on morphology of ZnO films
• Author: Ivana Bukovčan
• Mentor: Jelena Macan (mentor)
• Committee member: Jelena Macan (predsjednik povjerenstva)
• Committee member: Juraj Šipušić (član povjerenstva)
• Committee member: Zvonimir Katančić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2017-09-08, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Basic Technical Sciences; Materials

Abstract

U ovom radu eksperimentalno su ispitani utjecaji vanjskih uvjeta (temperature, koncentracije početne otopine i vremena stajanja) na morfologiju prevlaka cinkova oksida (ZnO) dobivenih metodom taloženja iz otopine. Prevlake su dobivene iz alkoholne otopine cinkova acetata u metanolu uz nastajanje slojevitog hidroksida, cinkova hidroksi acetata. Dobivene su čestice cvjetićave strukture, mikrometarskih veličina. Rendgenska difrackijska analiza dobivenih prevlaka pokazala je da svi uzorci, bez obzira na morfologiju, imaju slojevitu strukturu cinkova hidroksida s izmjenjivim acetatnim ionima, a infracrvena spektroskopija potrvdila je strukturu pokazavši prisutnost hidroksidnih i acetatnih iona.

Abstract (english)

In this paper, the influence of external conditions (temperature, initial Zn2+ concentration and time) on morphology of ZnO films, prepared by chemical bath deposition method, was experimentally tested. The films were made in an alcoholic solution of zinc acetate dihydrate in methanol, resulting in formation of layered double hydroxides (LDH), zinc hydroxy-acetate. The deposited films had flower-like microstructure. X-ray diffraction analysis of prepared films showed layered double hydroxide structure with exchangeable acetate ions for every sample, no matter the morphology. Infrared spectroscopy confirmed the structure, showing the presence of hydroxide and acetate ions.

• Keywords: ZnO; prevlake; morfologija; metoda taloženja iz otopine (CBD); cvjetićave strukture; slojeviti hidroksidi (LDH)
• Keywords (english): ZnO; films; morphology; chemical bath deposition (CBD); flower-like structures; layered double hydroxide (LDH)
• Language: croatian
• URN:NBN: urn:nbn:hr:149:781048
• Study programme: Title: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry; Course: Environmental chemistry and green technologies; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-01-08 13:23:43