本研究重點在於利用溶液方式合成 p型氧化亞銅 (Cu2O) 與鈷摻雜之 n型二氧化錫 (Sn1-xCoxO2) 奈米結構氧化物製作異質介面太陽能電池，以期達到全太陽光光譜吸收之目的，且藉由噴塗技術 (spray technology) 與熱壓系統製作太陽能電池，達到低成本與大面積製作等優勢。
本研究將嘗試藉由調整摻雜不同重量百分比之硫酸鈷水合物、氯化錫水合物濃度和pH值，製備出以低溫 (□ 90 □C) 濕式化學法成長的Sn1-xCoxO2顆粒結構與Cu2O奈米結構，並利用此兩種無毒且地球蘊藏豐富的元素分別作為n型與p型半導體材料，並結合噴塗技術與熱壓製程成功製作出n-Sn1-xCoxO2/p-Cu2O奈米結構異質介面太陽能電池。
另一方面，本研究亦分析氧化物之光學特性，得知 n-Sn1-xCoxO2顆粒太陽光光譜吸收波段為700 nm至1400 nm，此與吸收波段300 nm至800 nm之p-Cu2O結合成功達到可預期之太陽光光譜全波段吸收之目的。
在本研究中利用噴塗技術與熱壓系統製作之n-Sn1-xCoxO2/p-Cu2O奈米結構異質介面太陽能電池，隨著不同硫酸鈷摻雜重量百分比逐步0 wt%, 0.025 wt% 到 0.075 wt% 遞增，其最高能量轉換效率亦為線性增加，分別為7□10-4%、0.43%與1.2%，目前最高能量轉換效率為以n-Sn0.86Co0.14O2/p-Cu2O 製作之太陽能電池，其為開路電壓 (open-circuit voltage, Voc) Voc＝ 2.325 V，短路電流 (short-circuit current, Jsc) Jsc ＝1.426 mA/cm2，填充因子 (fill factor, FF) FF ＝36%，能量轉換效率 (power conversion efficiency, PCE) PCE ＝1.2%。
相較目前文獻報導，以溶液方式製作之氧化物奈米結構太陽能電池之最高能量轉換效率為0.88%，本研究可成功的製作n-Sn0.86Co0.14O2/p-Cu2O氧化物奈米結構異質介面太陽能電池之最高能量轉換效率為1.2%。

摘要 I
Abstract III
致謝 V
目錄 VIII
圖目錄 XI
表目錄 XVIII
第一章 緒論 1
第二章 文獻回顧與原理簡介 5
2.1 太陽能電池簡介 5
2.2 p-n接面工作原理 8
2.3 太陽能電池電性簡介 9
2.4 太陽能電池能量損失分析圖 13
2.5 氧化物異質結太陽能電池工作原理 16
2.6 以全氧化物製作之太陽能電池 21
第三章 實驗流程與方法 25
3.1 n型鈷摻雜之二氧化錫 (Co-doped SnO2) 顆粒製備 27
3.2 p型氧化亞銅 (Cu2O) 奈米結構製備 29
3.3 n-Co-doped SnO2/p-Cu2O奈米結構太陽能電池之製備 31
3.4 實驗儀器簡介 34
3.4.1 場發射掃描電子顯微鏡與能量散佈分析儀 34
3.4.2 高解析度穿透式電子顯微鏡 36
3.4.3 X光繞射分析儀 38
3.4.4 紫外/可見光吸收光譜儀 39
3.4.5 太陽能電池效率量測系統 41
3.4.6 電漿系統 43
3.4.7 熱壓成型機 44
第四章 實驗結果與討論 45
4.1 以濕式化學法製備鈷摻雜二氧化錫顆粒 45
4.1.1 溶液pH值與直接成長Co-doped SnO2結構於試片表面對Co-doped SnO2結構形貌之影響 47
4.1.2 反應時間對Co-doped SnO2結構形貌之影響 52
4.1.3 氯化錫水合物濃度對Co-doped SnO2奈米結構形貌之影響 55
4.1.4 硫酸鈷水合物摻雜重量百分比以及退火處理對Co-doped SnO2奈米結構形貌之影響 58
4.2 Co-doped SnO2顆粒之X光繞射分析 62
4.3 Co-doped SnO2顆粒之微結構及成份分析 65
4.3.1 0.025 wt% Co-doped SnO2顆粒之結構及成份分析 65
4.3.2 0.075 wt% Co-doped SnO2顆粒之微結構及成份分析 68
4.4 Co-doped SnO2顆粒之紫外/可見光吸收光譜及其能隙分析 71
4.5 n-Sn1-xCoxO2奈米顆粒表面形貌、材料分析及其能隙之討論 76
4.5 水熱法成長Cu2O奈米結構 79
4.5.1 NaOH對於Cu2O奈米結構表面形貌之影響及其X光繞射分析 79
4.5.2 Cu2O顆粒之微結構及成份分析 82
4.5.3 Cu2O奈米結構之紫外/可見光吸收光譜及其能隙分析 85
4.6以氧化物奈米結構製作異質介面太陽能電池 88
4.6.1 經退火處理之Co-doped SnO2顆粒與Cu2O奈米結構之噴塗 88
4.6.2 熱壓製程前後之p-Cu2O與經過退火處理之n-Sn1-xCoxO2表面形貌及其剖面圖 91
4.6.3 不同重量百分比摻雜之Sn1-xCoxO2顆粒對於p-Cu2O/n -Sn1-xCoxO2異質介面太陽能電池效率影響 93
4.6.4 n-Sn0.86Co0.14O2/p-Cu2O奈米結構異質介面太陽能電池微區電子繞射及成份分析 100
4.6.5 n-Sn1-xCoxO2奈米顆粒與p-Cu2O奈米結構之材料特性對於太陽能電池效率影響之討論 103
第五章 結論 106
第六章 未來展望 108
參考文獻 109

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