本論文主要研究低能隙鈣鈦礦太陽能電池的製備及應用，使用一步法溶液製程來製作錫鉛混合鈣鈦礦太陽能電池，利用不同錫鉛比例來製作鈣鈦礦主動層比較其吸收特性及電性的差異，得到最佳化的比例為FA0.7MA0.3Pb0.5Sn0.5I3，進一步將主動層前驅物的濃度提升使主動層厚度更厚以增加光的吸收量，再改變錫還原劑的濃度，觀察薄膜形貌、晶相與電性差異，最後優化電子傳輸層的厚度使元件效率最佳化。
為了將低能隙鈣鈦礦太陽能電池應用於全鈣鈦礦串聯電池，我們以較高能隙的MAPbI3為主動層使用一步法溶液製程製作出元件並優化，最後嘗試將能隙1.55 eV與1.2 eV的兩種全溶液製程鈣鈦礦太陽能電池製作成全鈣鈦礦串聯電池並進行分析。

In this thesis, we focus on the fabrication and application of low-bandgap perovskite solar cell. The tin-lead halide perovskite layer was fabricated by one-step solution process. By varying different ratios of Sn/Pb, we fabricated perovskite active layers and compared their absorption characteristics and electrical properties, the optimized composition of the tin-lead halide perovskite was FA0.7MA0.3Pb0.5Sn0.5I3.
In order to enhance the light absorption, we increased the concentration of the precursor to increase the thickness of active layers. It was essential to reduce Sn4+ content in the active layer, so we used different concentrations of reducing agent SnF2 in precursor. In addition, we adjusted the thickness of electron transport layer to optimize the conversion efficiency of the device.
To apply our low-bandgap perovskite solar cell in all-perovskite tandem cells, we fabricated the high-bandgap lead halide perovskite solar cell. The lead halide perovskite solar cell was fabricated by one-step solution process. Lastly, we fabricated the all-perovskite tandem cell with the 1.55 eV lead halide perovskite on the top and the 1.2 eV tin-lead halide perovskite on the bottom, and investigated its electrical properties.

第一章 序論 1
1.1研究背景 1
1.1.1 前言 1
1.1.2 太陽能電池發展 2
1.2文獻回顧 5
1.2.1鈣鈦礦 5
1.2.2 鈣鈦礦太陽能電池結構與發展 6
1.3 研究目的 11
1.4 論文架構 12
第二章 實驗原理 13
2.1太陽能電池基本介紹 13
2.1.1 太陽光 13
2.1.2 太陽能電池工作原理 14
2.1.3 太陽能電池等效電路 15
2.1.4 太陽能電池重要參數 17
2.2 太陽能電池材料特性 19
2.2.1 主動層材料 19
2.2.2 電洞傳輸層材料 20
2.2.3電子傳輸層材料 20
2.2.4 陽極及陰極材料 20
第三章 實驗流程與方法 21
3.1 材料及藥品 21
3.2 元件製備流程 22
3.3 元件製備 22
3.3.1 ITO基板清洗 22
3.3.2電洞傳輸層成膜 23
3.3.3主動層成膜 24
3.3.4電子傳輸層成膜 25
3.3.5蒸鍍陰極 26
3.4 量測方法 26
第四章 數據分析 28
4.1 錫鉛鈣鈦礦太陽能電池分析 28
4.1.1 不同主動層比例之影響 28
4.1.2 主動層錫還原劑濃度影響 31
4.1.3 電子傳輸層與緩衝層分析 37
4.2 鉛基鈣鈦礦太陽能電池分析 40
4.3 全鈣鈦礦串聯太陽能電池 44
第五章 結論 48
參考文獻 50

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