本論文研究所使用的太陽能電池有機高分子材料，為 PBDTTT-EFT
Poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5- b']dithiophene-2,6-diylalt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-)-2- carboxylate-2-6-diyl)]。
實驗採用刮刀塗佈製程，可達到材料的高使用率，未來可應用於大面積化高效
率有機太陽能電池的發展。
第一部分是利用多層結構在有機太陽能電池元件上，希望可以藉由在陰極端
或者陽極端增加介面層，改善正結構有機太陽能電池的壽命表現。目前經過了
5832 個小時之後， PCE 仍然維持 6.07%。
第二部分是改變有機太陽能電池元件的溶劑使用，為了達到更環保、有善於
環境的目標 ，本篇論文使用不含鹵素的溶劑及添加劑， 製作高效率有機太陽能電
池，採用了 Toluene, Xylene, NMP 取代 Chlorobenzene, DIO 。並觀察其替換溶劑
及添加劑之後，起始效率的差異及後續壽命的表現。

This thesis uses the high efficiency organic solar materials, which is Poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5- b']dithiophene-2,6-diyl-alt-(4-(2-ethylhexyl)-3-fluorothieno[3,4-b]thiophene-)-2- carboxylate-2-6-diyl)] (PBDTTT EFT).
Blade coating is used for the deposition of the active layer as it can achieve high material
usage and is scalable to large area OSC in the future.
The first part is using multilayered structure on PBDTTT-EFT organic solar cells,
we hope we can improve the lifetime for the normal structure organic solar cells by
adding interlayer to the top or back of the active layer. After 5832 hours continuous
operating, the PCE remains 6.07%.
The second part is changing the use of solvents on organic solar cells. In order to
more environmental-friendly, the thesis manufactures high-efficiency organic solar cells
by halogen-free solvents, such as Toluene, Xylene, NMP. We will observe the initial PCE
and the lifetime after using the halogen-free solvents.

中文摘要 ............................................................................................................................. i
Abstract .............................................................................................................................. ii
誌謝 ................................................................................................................................... iii
目錄 ................................................................................................................................... iv
圖目錄 ................................................................................................................................ v
表目錄 ............................................................................................................................... vi
第一章 緒論 .................................................................................................................. 1
1.1 研究背景 ...................................................................................................... 1
1.1.1 前言 ....................................................................................................... 1
1.1.2 太陽能電池的發展 ................................................................................ 2
1.1.3 有機太陽能電池的發展 ........................................................................ 3
1.2 研究動機與文獻回顧 ....................................................................................... 7
1.2.1 有機高分子太陽能電池的優勢 ............................................................ 7
1.2.2 高效率混合層之有機太陽能電池 ........................................................ 7
1.2.3 使用刮刀塗佈製程製作有機光電元件 ................................................ 8
1.3 論文架構 ...................................................................................................... 9
第二章 實驗原理 ........................................................................................................ 10
2.1 高分子太陽電池工作原理 ............................................................................... 10
iv
2.1.1 高分子對光能的吸收 ............................................................................. 12
2.1.2 激子擴散（exciton diffusion） ............................................................ 12
2.1.3 電荷分離(charge separation) .................................................................. 12
2.1.4 電荷載子的收集 ..................................................................................... 13
2.2 有機太陽能電池之 I-V 曲線與元件之重要參數 .................................... 13
2.2.1 開路電壓(V
oc
) .............................................................................................. 13
2.2.2 短路電流(J
sc
) .............................................................................................. 15
2.2.3 填充因子(FF) ................................................................................................ 15
2.2.4 光電轉換效率(η) ............................................................................................ 17
2.3 本論文所使用材料 ........................................................................................ 18
2.3.1 太陽能電池主動層材料 ...................................................................... 18
2.3.2 電洞傳輸層材料 ................................................................................. 20
2.3.3 陽極與陰極材料 ................................................................................. 20
2.4 元件結構與材料能帶圖 .................................................................................... 21
第三章 實驗方法與流程 ............................................................................................ 23
3.1 有機太陽能電池元件製作流程 .................................................................... 23
3.2 ITO 導電玻璃基板之設計與圖像化 ............................................................ 26
3.2.1 ITO 玻璃之裁切與洗淨 ..................................................................... 26
3.2.2 乾式光阻黏貼 ...................................................................................... 26
3.2.3 ITO 基板曝光 ..................................................................................... 26
iv
3.2.4 ITO 基板顯影 ..................................................................................... 27
3.2.5 ITO 基板蝕刻 ..................................................................................... 27
3.2.6 殘餘光阻脫膜 ...................................................................................... 27
3.3 ITO 標準清洗 ................................................................................................. 28
3.4 ITO 表面處理 ................................................................................................ 28
3.5 電洞傳輸層(Hole Transport Layer, HTL)上膜 ............................................. 29
3.6 PBDTTT-EFT 層上膜 .................................................................................... 30
3.7 高分子主動層上膜 ......................................................................................... 30
3.7.1 添加 PC71BM 之多層結構 .................................................................. 31
3.7.2 添加 PBDTTT-EFT 之多層結構 .......................................................... 31
3.7.3 無鹵素溶劑之正結構 ............................................................................ 31
3.8 PC71BM 層上膜 ............................................................................................ 32
3.9 蒸鍍電極 ........................................................................................................ 33
3.10 元件封裝 ...................................................................................................... 34
3.11 電性量測 ...................................................................................................... 34
3.12 實驗儀器 ...................................................................................................... 35
3.12.1 刮刀塗佈系統 .................................................................................... 35
3.12.2 壽命量測持續操作系統 .................................................................... 36
第四章 實驗結果與討論 ................................................................................................ 38
4.1 多層結構應用於高效率有機太陽能電池上 ................................................ 38
iv
4.1.1 在主動層結構為 PBDTTT-EFT 之陽極端添加 PC71BM 層 ......... 39
4.1.2 在主動層結構為 PBDTTT-EFT 陰極端添加 PBDTTT-EFT 層 .... 41
4.1.3 多層結構應用於主動層材料 PBDTTT-EFT 之壽命觀察結果 ........ 44
4.2 在主動層材料為 PBDTTT-EFT 使用無鹵素溶劑及添加劑 ..................... 48
4.2.1 使用溶劑 Toluene 及添加劑 NMP 於元件之結果 ............................ 49
4.2.2 使用溶劑 Xylene 及添加劑 NMP 於元件之結果 ............................. 51
4.2.3 使用無鹵素溶劑及添加劑於元件之壽命量測 ................................. 52
第五章 結論 ................................................................................................................ 56
參考文獻 .......................................................................................................................... 57

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