Fabrication of single-crystalline organic-inorganic hybrid perovskites thin films
| Autor: | Ruey-Yuan Su, 蘇睿元 |
|---|---|
| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 107 In recent years, there has been a crystalline material - "organic-inorganic hybrid perovskite " structure which has been taken as the potential candidate of future solar cells. These perovskite solar cells have attracted the scientist’s attention due to their easy fabrication process and rapid growth conversion efficiency. Thus, our study is focus on perovskite structure. There are two parts of our work. In the first part, we use inverse temperature crystallization method to grow perovskite single crystals. In the second part, we added Tetrahydrothiophene 1-oxide (THTO) in perovskite precursor solution and use spin-coating method to fabricate thin films. We found that THTO can enhance the prefer orientation for thin films which may be better for device applications. In the first study, we fabricate various types of perovskite single crystals successfully via inverse temperature crystallization such as MAPbBr3, MAPbI3, MA1-xCsxPbI3 and MAPbI3-xClx. The crystal structure has been confirmed by X-ray diffraction analysis and the crystal quality has been analyzed by rocking curve analysis (High- Resolution XRD). We also use SEM, OM to analyze their surface morphology. In our second work, we can observe the films fabricated by adding THTO in solution using X-ray diffraction analysis, was performed prefer orientation on (110) and (220) diffraction angles, and the grain size for adding THTO in the solution is larger than another using SEM images analysis. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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