臺灣博碩士論文加值系統

本論文以一步驟塗布方式成長鈣鈦礦太陽電池(Organic Perovskite Solar Cells, PSCs)，其中有機鈣鈦礦太能電池的效能較高，但是穩定性不佳，而無機鈣鈦礦太陽電池穩定性較好，但效能不理想。本研究嘗試以銫離子取代有機鈣鈦礦薄膜中的甲基胺陽離子以延長有機鈣鈦礦太陽電池的穩定性。由掃描式電子顯微鏡(Scanning Electron Microscope, SEM)分析可得知，在有機鈣鈦礦薄膜(四方晶體結構)中引入CsPbI3(斜方晶體結構)時，可改善並優化鈣鈦礦薄膜的結晶結構。由原子力顯微鏡(Atomic Force Microscope, AFM)分析可看出引入銫原子的有機鈣鈦礦薄膜的結晶顆粒更大。

In this thesis, we used a one-step-spin-coating method to grow the perovskite solar cells (PSCs). The organic PSCs (CH3NH3PbI3) exhibit a high conversion efficiency with an low stability while the inorganic PSCs (CsPbI3) represent a high stability with a bad conversion efficiency. In this study, we use cesium ions (Cs+) to replace aminomethane (MA+) in organic perovskite thin films to enhance the stability of organic PSCs. The crystalline structure of the organic perovskite thin film with tetragonal structure can be improved by incorporating with CsPbI3 with orthorhombic structure observed from scanning electron microscope (SEM) images. A larger grain size of organic perovskite thin film with Cs+ was found in the atomic force microscope (AFM) images as compared to that of organic perovskite thin film without Cs+.

摘要......i
Abstract......ii
誌謝......iii
目錄......iv
表目錄......vi
圖目錄......vii
第一章 導論......1
1.1前言......1
1.2 簡介......3
1.2.2文獻探討......4
1.3研究動機......5
第二章 基礎理論......6
2.1 旋轉塗佈原理及介紹......6
2.2 SR3光學膜厚儀......8
2.3 霍爾量測原理與架構......10
2.4 X射線繞射儀(X-ray diffraction，XRD)......11
2.5 紫外線-可見光-紅外線光譜儀(UV-Vis Spectrum)......12
2.6 掃描式電子顯微鏡(SEM)......13
2.7 能量色散X-射線光譜(EDX)......14
2.8 原子力顯微鏡(Atomic force microscope,AFM)......15
2.9 接觸角量測儀......16
2.10 熱退火原理及機制......17
第三章 實驗流程......18
3.1實驗藥品與材料......18
3.2實驗方法與步驟......20
3.2.1基板清洗及準備......20
3.2.2 一步法製備鈣鈦礦薄膜......20
3.2.3 PEDOT:PSS薄膜製備......21
3.2.4 SnO2薄膜製備......22
第四章 實驗結果與討論......23
4.1鈣鈦礦薄膜特性分析......23
4.1.1 不同PbI2濃度鈣鈦礦薄膜之表面形貌與組成元素分析......23
4.1.2 不同PbI2濃度鈣鈦礦薄膜之光學特性分析......26
4.1.3 不同PbI2濃度鈣鈦礦薄膜之結晶特性分析......28
4.1.4 不同MAI濃度鈣鈦礦薄膜之表面形貌與組成元素分析......30
4.1.5 不同MAI濃度鈣鈦礦薄膜之光學特性分析......33
4.1.6 不同MAI濃度鈣鈦礦薄膜之結晶特性分析......35
4.1.7 不同CsI濃度鈣鈦礦薄膜之表面形貌與組成元素分析......37
4.1.8 不同CsI濃度鈣鈦礦薄膜之光學特性分析......45
4.1.9 不同CsI濃度鈣鈦礦薄膜之結晶特性分析......47
4.2 電洞傳輸層薄膜特性分析......49
4.2.1 PEDOT:PSS薄膜之電特性分析......49
4.2.2 PEDOT:PSS薄膜之光學特性分析......51
4.2.3 PEDOT:PSS薄膜之表面形貌......54
4.3 電子傳輸層薄膜特性分析......55
4.3.1 SnO2薄膜之水滴角分析......55
4.3.2 SnO2薄膜之電特性分析......56
4.3.3 SnO2薄膜之光學特性分析......57
4.3.4 SnO2薄膜之表面形貌......59
第五章 結論......61
參考文獻......62
Extended Abstract......68

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