臺灣博碩士論文加值系統

於本篇論文研究中，吾人將無機金屬氧化物二氧化鈦奈米粒子混摻於poly(3-hexylthiophene-2,5-diyl)（P3HT）與C60衍生物 [6,6]-phenyl-C61-butyric acid methyl ester (PCBM)以重量比1:1混合而成的高分子主動層中，二氧化鈦奈米粒子具有高電子傳導性質及高表面積，因而常被應用於無機-有機摻混(hybrid)有機太陽能電池。而本研究先探討熱退火後處理(post-treatment annealing)對於高分子太陽能電池之影響，找出最適當的熱退火後處理溫度。然後再針對摻混二氧化鈦奈米粒子對於有機高分子太陽能電池之效能影響作探討，並更進一步做熱退火後處理，比較有無摻混二氧化鈦奈米粒子在經過熱退火後處理後之效益。
而結果顯示，在未經熱退火後處理前，摻混二氧化鈦奈米粒子之有機高分子太陽能電池雖然其光電轉換效率並沒有太大之變化，但是可以增進主動層薄膜之形貌且短路電流密度(Jsc)有獲得些微提升之趨勢；而在經過熱退火後處理之後，有摻混二氧化鈦奈米粒子之元件，其光電轉換效率從2.75提升至3.12%，表示摻混二氧化鈦奈米粒子的確可以增進有機高分子太陽能電池之元件特性。

Poly(3-hexylthiophene) (P3HT) is a promising candidate for polymer solar cells research due to its good absorbance and stability. In this manuscript, we report polymer solar cells based on P3HT: [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) 1:1 weight ratio blend. We have doped TiO2 nanoparticles to improve the performance of polymer solar cells based on P3HT:PCBM. The morphology of polymer solar cell was improved due to the additional of TiO2 nanoparticles. The effects of thermal annealing on the solar cell as with and without TiO2 nanoparticles blending were studied respectively. Post-treatment annealing shows significant improvement in performance for both addition TiO2 nanoparticles or without them. Optimization the thermal annealing condition and the amount of TiO2 nanoparticles, a solar cell with high short-circuit current density 8.44 mA/cm2 was obtained. The efficiency of the photovoltaic device was improved from 1.2% to 3.1% after post-annealing with doping TiO2 nanoparticles in the active layer of polymer solar cell.

中文摘要 I
Abstract II
誌謝 III
目錄 IV
表目錄 VII
圖目錄 VIII
第一章 緒論 1
1.1再生能源之重要性 1
1.2 太陽光頻譜照度 2
1.3 太陽能電池簡介 4
1.3.1 無機太陽能電池 4
1.3.2 有機太陽能電池發展潛力 5
1.4 常用於製作有機高分子太陽能電池之材料 8
1.5 研究動機 9
第二章 文獻回顧 11
2.1 共軛高分子太陽能電池工作原理 11
2.2 共軛高分子太陽能電池之特性分析 14
2.2.1 開路電壓(Open Circuit Voltage, Voc) 15
2.2.2 短路電流(Short Circuit Current, Isc) 18
2.2.3 填充因子 19
2.3 共軛高分子太陽能電池之發展演進 21
2.3.1 單層結構(single layer architecture) 21
2.3.2 電子予體/受體雙層異質接面結構(Bilayer heterojunction architecture) 21
2.3.3 電子予體/受體混摻總體異質接面結構(bulk-heterojunction architecture) 24
第三章 實驗方法與步驟 32
3.1 實驗藥品及儀器 32
3.1.1 藥品 32
3.1.2 實驗儀器 34
3.2 主動層溶液配製 34
3.2.1 主動層材料 34
3.2.2 主動層溶液配製 35
3.3 有機高分子太陽能電池元件製備 36
3.3.1 蝕刻與清洗ITO玻璃 36
3.3.2 UV ozone處理 36
3.3.3電洞傳輸層PEDOT:PSS(AI4083)旋轉塗佈 36
3.3.4主動層旋轉塗佈 37
3.3.5蒸鍍電極 37
3.3.6熱退火後處理 38
3.3.7元件量測 38
3.4分析儀器與原理 40
3.4.1太陽光模擬器（Solar simulator）量測分析 40
3.4.2 主動層穿透式電子顯微鏡（TEM）影像分析 40
3.4.3 能量分散光譜儀(Energy Dispersive X-ray)分析 41
3.4.4 表面粗度儀（Alpha-Step Profilometer, α-step） 41
3.4.5 主動層紫外光-可見光（UV-Vis）吸收光譜分析 42
3.4.6 外部量子效率量測（External quantum efficiency, EQE） 42
3.4.7 原子力顯微探測儀(Atomic Force Microscope, AFM) 42
第四章 結果與討論 44
4.1 熱退火溫度對於有機高分子太陽能電池之影響 44
4.1.1 紫外-可見光吸收光譜 44
4.1.2 原子力顯微儀 48
4.1.3 外部量子效率 51
4-1-4 有機高分子太陽能元件特性-熱退火後處理溫度之影響 52
4-1-5 有機高分子太陽能元件特性-熱退火後處理持溫時間之影響 55
4.2摻混二氧化鈦奈米粒子對於有機高分子太陽能電池之影響 57
4.2.1 穿透電子顯微鏡(TEM)與能量分散光譜儀(EDX) 57
4.2.2 紫外-可見光吸收光譜 60
4.2.3 原子力顯微儀 63
4.2.4 外部量子效率 65
4.2.5 摻混二氧化鈦奈米粒子之有機高分子太陽能元件特性 67
第五章 結論 70
參考文獻 71

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