本研究探討將一小分子電子施體材料(Electron Donor)2,4-Bis[4-(N,N-diphenylamino)-2,6-dihydroxyphenyl]squaraine(簡稱DP-SQ)摻雜進由電子施體材料Poly(3-hexylthiophene-2,5-diyl)(簡稱P3HT)，以及電子受體材料(Electron Acceptor)[6,6]-phenyl C61 butyric acid methyl ester(簡稱PCBM)所組成的聚合物混和層異質介面(bulk heterojunction, BHJ)之反置式有機太陽能電池。
我們探討不同溶劑、不同溶解方式、不同濃度的P3HT:DP-SQ:PCBM薄膜吸收、表面粗糙度，進而將其作為主動層並製成反置式有機太陽能電池，元件結構為ITO/ZnO/P3HT:DP-SQ:PCBM/MoO3/Ag。
結果發現，濃度1.8wt.%製成之參雜元件，元件面積為0.03 cm2，在AM 1.5G 100 mW/cm2的模擬太陽光源照射下，開路電壓0.66 V，短路電流密度6.48 mA/cm，填充因子64%，能量轉換效率2.74%，藉由近紅外光吸收貢獻於光電流後，效率也由standard的2.55%提升至2.74%，而過多的材料加入將造成元件效率的下降。
以PL放光光譜量測可發現，DP-SQ加入後，薄膜放光強度相對於P3HT:PCBM來的更低，主因為DP-SQ之能階與P3HT、PCBM相對匹配，可當作緩衝層作用，將原本無法萃取出的能量萃取出來貢獻於光電流。

In this study, we investigate the effects of adding a small molecule electron Donor material 2,4-Bis[4-(N,N-diphenylamino)-2,6-dihydroxyphenyl]squaraine (DP-SQ) into a Poly(3-hexylthiophene-2,5-diyl)(P3HT): [6,6]-phenyl C61 butyric acid methyl ester(PCBM) polymer bulk heterojunction inverted solar cell.
In this research, we investigate the optical absorption and surface roughness of the P3HT:DP-SQ:PCBM film whose solution was dissolved by different solvent and method, the devices were fabricated by incorporating the P3HT:DP-SQ:PCBM thin films as active layer. The structure of the inverted device is ITO/ ZnO/ P3HT:DP-SQ:PCBM/ MoO3/ Ag.
The results indicated that the device of the P3HT:PCBM blend with 1.8wt.%
DP-SQ, got the open voltage 0.66V, the short circuit current 6.48 mA/cm2 and the power conversion efficiency 2.74%. Comparing with the standard device, power conversion efficiency was enhanced because of the near infrared absorption in the active layer, but the device performance would decrease if excessive DP-SQ was added into the active layer.
According to the PL measuring, we found that after adding DP-SQ into P3HT:PCBM film, the light intensity was lower than P3HT:PCBM film without DP-SQ, which was caused by the matched energy level of DP-SQ、P3HT and PCBM. Here, DP-SQ could be the buffer material and help the exciton harvesting.

中文審定書 i
英文審定書 ii
誌謝 iii
摘要 v
Abstract vi
目錄 viii
圖目錄 xi
表目錄 xiii
第一章 序論 1
1-1 前言 1
1-2 太陽能電池的種類與介紹 3
1-3 有機太陽能電池結構與技術發展 5
1-3-1 單層結構有機太陽能電池 5
1-3-2 雙層異質界面有機太陽能電池 6
1-3-3 混合層異質接面有機太陽能電池 7
1-3-4 混合層異質接面有機太陽能電池加入電極緩衝層 8
1-4 三元混摻太陽能電池(Ternary solar cells) 9
1-5 文獻回顧 10
1-6 研究動機 13
第二章 基礎理論 15
2-1 能量及電荷轉移機制 15
2-2 有機太陽能電池工作原理 16
2-3 有機太陽能電池元件操作分析 21
2-3-1 短路電流 (Short Circuit Current, ISC) 22
2-3-2 開路電壓 (Open Circuit Voltage, VOC) 22
2-3-5 填充因子(Fill Factor, FF) 23
2-3-6 功率轉換效率(Power Conversion Efficiency, PCE) 23
第三章 實驗 24
3-1 實驗架構 24
3-2 實驗藥品 26
3-3 製程設備 29
3-4 量測分析儀器與方法 31
3-4-1 紫外光/可見光光譜儀(UV-Visible Spectrometer) 31
3-4-2 原子力掃描探針顯微鏡 (Atomic Force Microscope；AFM) 32
3-4-3 太陽光譜模擬測量系統(Solar Simulator) 34
3-4-4 表面輪廓儀(Surface Profiler，或稱為Alpha-step) 35
3-4-5 螢光光譜儀(Fluorescence spectrometer，PL) 36
3-4-5 外部量子效率量測系統 37
(Incident photon conversion efficiency system，IPCE) 37
3-5 藥品配製 38
3-5-1 氧化鋅溶膠凝膠 38
3-5-2 P3HT/PCBM/DP-SQ材料 38
3-6 實驗步驟 39
3-6-1 ITO基版圖形化 39
3-6-2 反置式有機太陽能電池基礎元件製程 40
第四章 結果與討論 42
4-1 以鄰二氯苯為溶劑之主動層元件特性分析 43
4-2 DP-SQ:PCBM於不同溶劑下之UV-Vis吸收光譜量測 45
4-3 以氯苯為溶劑之主動層元件特性分析 46
4-3-1以氯苯為主動層溶劑之薄膜吸收光譜 48
4-3-2 以氯苯為主動層溶劑之薄膜表面粗糙度分析 50
4-3-3 以氯苯為溶劑不同溶解方式之主動層元件特性分析 52
4-3-4 以氯苯為溶劑並降低濃度之主動層元件特性分析 53
4-3-5 降低濃度之氯苯主動層元件外部量子效率分析 55
第五章 總結 58
參考文獻 59

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