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GUIDE OAK 국가리포지터리 부경대학교

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Abstract: In this work, (C6H5CH2NH3)2PbBr4 were prepared by chemical method. The crystalline phase was confirmed by X-ray powder diffraction analysis. The morphology of the materials was analyzed by scanning electron microscopy (SEM), indicating a good crystallization. The luminescence properties such as photoluminescence spectra and decay curves were investigated. Low and high temperature photoluminescence spectra show the coexistence of free exciton and self-trapped exciton luminescence in a deformable lattice. The thermal stabilities were investigated from the temperature dependent luminescence decay curves (lifetimes) and spectra intensities. The obtained (C6H5CH2NH3)2PbBr4 perovskite reported here can be applied to other two-dimensional perovskites to increase the optoelectronic efficiency of the device in the future.

URI: https://repository.pknu.ac.kr:8443/handle/2021.oak/24003
http://pknu.dcollection.net/common/orgView/200000181582

Table Of Contents: 1.Introduction 1
1.1.Crystal Structure and Quantum Trap of Organic/Inorganic Hybrid Perovskites 4
1.1.1.Crystal structure 4
1.1.2.Quantum well structure 8
1.2.Preparation of organic/inorganic hybrid perovskite materials 14
1.2.1.Single crystal preparation 14
1.2.2.Film preparation technology 17
1.3.Application of organic/inorganic hybrid perovskite materials 22
1.3.1.Application on light emitting diodes (LEDs) 22
1.3.2.Applications on field effect transistors (FETs) 26
1.3.3.Applications on photovoltaic devices 28
1.3.4.Other applications 29
1.4.The purpose and significance of the research 31
2.Background: Synthesis and Characterization of Organic/Inorganic Hybrid Perovskite Materials Based on Lead Iodide 34
2.1.Introduction 34
2.2.Experimental part 36
2.2.1.Chemical reagents 36
2.2.2.Preparation of organic amine salts 36
2.2.3.Preparation of organic/inorganic hybrid calcium ore materials 37
2.2.4.Characterization means 39
2.3. Spectroscopic measurement 40
2.3.1.Analysis of the structure of hybrid perovskite materials 40
2.3.2.UV-Vis absorption spectroscopy analysis of hybrid perovskite films 44
2.3.3.Fluorescence (PL) spectral analysis of hybrid perovskite films 46
3.Sample preparation and Discussions 50
3.1. Sample preparation 50
3.2. Results and discussions 51
4.Conclusions 62
Acknowledgements 63
References 64

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