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研究生(外文):CHEN, LIANG-YU
論文名稱(外文):Study on the Process and Characteristics of Passivation of Perovskite Solar Cells with Cupper Iodide
指導教授(外文):FU, YAW-SHYAN
外文關鍵詞:potassium thiocyanatecupper iodideperovskite solar cells
  • 被引用被引用:0
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In this study, we added potassium thiocyanate and cupper iodide into perovskite precursors. We found that the coverage of perovskite film with potassium thiocyanate decreased. It is speculated that the salt is deliquescent in the atmosphere, and it is unavoidable that the salt will lead to moisture damage when added to perovskite precursors.
A remarkable growth in the grain size has been found in the perovskite film with doping appropriate amount of cupper iodide. At the optimum concentrations of cupper iodide as additives, the perovskite solar cells show the efficiencies of 13.2%, being much higher than 10.7% of the reference cells without additives. It is speculated that the copper iodide precipitates out in the perovskite grain boundary, passivating the trap states in the thin film, which in turn increases the fill factor and open circuit voltage of the element.

中文摘要 i
Abstract ii
目次 iii
圖次 vi
表次 ix
第一章 緒論 1
1-1 研究背景 1
1-2 太陽能電池介紹 2
1-3 研究動機 4
第二章 文獻回顧 7
2-1 鈣鈦礦簡介 7
2-2 鈣鈦礦太陽能電池發展 8
2-3 鈣鈦礦太陽能電池的鈍化工程 13
2-3-1 使用碘化鉛鈍化鈣鈦礦晶界 14
2-3-2 使用甲基碘化胺鈍化鈣鈦礦晶界 16
2-3-3 使用鋁離子鈍化鈣鈦礦晶界 18
2-3-4 使用銅離子鈍化鈣鈦礦晶界 19
2-3-5 使用鈉離子鈍化鈣鈦礦晶界 20
2-3-6 使用鉀離子鈍化鈣鈦礦晶界 22
2-4 鈣鈦礦太陽能電池的離子組成工程 24
2-4-1 使用銫取代部分鈣鈦礦一價陽離子 26
2-4-2 使用銣取代部分鈣鈦礦一價陽離子 28
2-4-3 使用一價陽離子取代部分鈣鈦礦金屬陽離子 30
2-4-4 使用硫氰酸根取代鈣鈦礦鹵素 31
-4-5 使用硫氰酸鉀取代鈣鈦礦陽離子與鹵素 33
2-5 於鈣鈦礦中添加鹽類的文獻總覽 34
第三章 實驗步驟 39
3-1 實驗藥品及儀器 39
3-2 實驗架構 41
3-3 實驗方法 42
3-3-1 氧化銦錫導電玻璃製備與蝕刻 42
3-3-2 清洗導電玻璃基板 44
3-3-3 沉積電洞傳輸層 44
3-3-4 合成甲基碘化胺 45
3-3-5 鈣鈦礦層旋塗成膜 45
3-3-6 光伏元件製作 48
3-4 分析儀器與方法 49
3-4-1 X光繞射儀 (X-Ray Dffraction) 49
3-4-2 掃描式電子顯微鏡 (Scanning Electron Microscope) 50
3-4-3 紫外/可見光光譜儀(Ultraviolet-Visible spectrophotometer) 51
3-4-4 光致發光光譜儀(Photoluminescence spectrometer) 52
3-4-5 光伏特性測量系統 53
第四章 結果與討論 54
4-1 以SEM觀察鈣鈦礦薄膜表面 54
4-1-1 添加硫氰化鉀之鈣鈦礦薄膜表面觀察 54
4-1-2添加碘化亞銅之鈣鈦礦薄膜表面觀察 56
4-2 以XRD觀察鈣鈦礦結晶狀態 58
4-2-1 添加硫氰酸鉀之鈣鈦礦結晶狀態 58
4-2-2 添加碘化亞銅之鈣鈦礦結晶狀態 60
4-3 鈣鈦礦元件電性分析 61
4-3-1 添加硫氰酸鉀之鈣鈦礦元件電性分析 61
4-3-2 添加碘化亞銅之鈣鈦礦元件電性分析 63
4-4 碘化亞銅摻雜對鈣鈦礦的影響 65
4-4-1 亞銅離子鑲入鈣鈦礦晶格中之假設 66
4-4-2 碘化亞銅析出於薄膜中之探討 69
第五章 結論 74
第六章 參考文獻 76

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