Razvoj perovskitnih polikristalnih tankih filmova stabiliziranih za okolišne uvjete kao aktivnih slojeva za fotonaponske ćelije

doctoral thesis

• Title (english): Development of perovskite polycrystalline thin films stabilized for ambient conditions as active layers for photovoltaic cells
• Author: Vedran Kojić
• Mentor: Andreja Gajović (mentor)
• Mentor: Dragana Mutavdžić Pavlović (mentor)
• Committee member: Zoran Mandić (predsjednik povjerenstva)
• Committee member: Petar Kassal (član povjerenstva)
• Committee member: Ana Šantić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2022-06-28, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry; Applied Chemistry
• Universal decimal classification (UDC): 54 - Chemistry. Crystallography. Mineralogy ; 53 - Physics

Abstract

U ovoj disertaciji istraživani su perovskitni tanki filmovi na bazi formamidinija. Cilj rada je bio istražiti uvjete pripreme formamidinijevih perovskita, odrediti njihova strukturna, optička i električna svojstva te istražiti ulogu polivinilpirolidona kao aditiva kojim bi se postigla njihova okolišna stabilnost. Sinteza perovskitnih tankih filmova proučavana je na staklenim podlogama s ciljem razvijanja optimalnih uvjeta ponovljive sinteze funkcionalnih tankih filmova. Utvrđeni uvjeti sinteze korišteni su za pripremu perovskitnog sloja na tankim filmovima titanijeva dioksida i cinkova oksida s ciljem izrade perovskitnih fotonaponskih ćelija. Eksperimentalno dobivena fotonaponska ćelija korištena je za izradu računalnog modela simulirane fotonaponske ćelije pomoću programa SCAPS 1D. Cilj modeliranja bio je istražiti je li SCAPS prikladan program za simulaciju perovskitnih fotonaposkih ćelija te kroz računalni model procjeniti poluvodička svojstva dobivenog perovskitnog tankog filma. Polivinilpirolidon istražen je kao potencijalni aditiv perovskitnom tankom filmu sa ciljem postizanja stabilnosti filma u okolišnim uvjetima. Istraživani su uvjeti sinteze perovskitnih filmova uz dodatak polivinilpirolidona, njegov utjecaj na morfološka, optička i električna svojstva te je istraživan utjecaj aditiva na parametre fotonaponske ćelije.

Abstract (english)

In this dissertation perovskite thin films based on formamidinium were investigated. The aim was to investigate formamidinium perovskite synthesis conditions, to determine their structural, optic and electronic properties and to investigate the role of polyvinylpirrolidone as an aditive for ambient stabilization of the material. The synthesis of perovskite thin films was investigated on glass substrates with the goal of developing an optimal and reproducible procedure for the preparation of functional thin films. Established synthesis conditions were used for the preparation of perovskite films on titanium dioxide and zinc oxide thin films to prepare perovskite photovoltaic cells. Obtained experimental photovoltaic devices were used to prepare a computer model of a simulated photovoltaic cell by using SCAPS 1D program with the aim to determine if SCAPS is a suitable program for the simulation of perovskite photovoltaic devices and to estimate the semiconducting properties of the perovskite thin film. Polyvinylpirrolidone was investigated as an aditive in the perovskite thin film to achieve the stability of the material in the ambient environment. The investigation included the analysis of synthesis conditions of perovskite films with the addition of polyvinylpirrolidone, its impact on the morphology, optic and electrical properties and its impact on photovoltaic parameters.

• Keywords: perovskitni tanki filmovi; formamidinijev perovskit; fotonaponske ćelije; polivinilpirolidon
• Keywords (english): perovskite thin film; formamidinium perovskite; photovoltaic cell; polivinylpirrolidone
• Language: croatian
• URN:NBN: urn:nbn:hr:149:340006
• Promotion: 2022
• Project: Number: IP-2018-01-5246; Title: Nanokompoziti s perovskitima za fotovoltaike, fotokatalizu i senzoriku; Acronym: NanoPeroPhotoSens; Leader: Andreja Gajović; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: IP
• Study programme: Title: Chemical Engineering and Applied Chemistry - Doctoral course; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija (doktor/doktorica znanosti, područje prirodnih znanosti, polje kemija)
• Type of resource: Text
• Extent: 133 str. ; 30 cm
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-12-01 13:10:59