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研究生： 李永元
Yung-Yuan Lee
論文名稱： 超輕薄型高分子有機太陽能電池穩定性之研究
Research on stability of ultrathin and lightweight polymer solar cells
指導教授： 李志堅
Chih-Chien Lee
口試委員: 劉舜維
Shun-Wei Liu
張志豪
Chih-Hao Chang
范慶麟
Ching-Lin Fan
學位類別： 碩士
Master
系所名稱： 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年： 2022
畢業學年度： 110
語文別： 中文
論文頁數： 68
中文關鍵詞： 輕薄型基板 、原子層沉積 、穩定性
外文關鍵詞： Ultrathin and lightweight substrate, Atomic layer deposition, Stability
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    • 本論文為對超輕薄高分子有機太陽能電池 (Polymer Solar Cell, PSC)穩定性的研究並實現高功率重量比，在重量極輕(3.17 g/m2)的聚一氯對二甲苯 (Polychloroparaxylene, Parylene-C)基板上製作高分子太陽能電池，主體材料使用高分子施體材料NTUST-1和非富勒烯受體材料 (Non-Fullerene Acceptor, NFA) NTUST-2，在倒置型元件使用三氧化鉬 (Molybdenum trioxide, MoO3)/銀 (Ag)/三氧化鎢 (Tungsten oxide, WO3) (MAW)結構做為上入光電極結構，PSC最高效率達到9.9%，元件總厚度為2 m，擁有高功率重量比27.58 W/g。
    超輕薄型太陽能電池除了擁有高功率重量比，元件在經過原子層沉積(Atomic Layer Deposition, ALD)薄膜封裝後，放置於大氣環境下648小時之後還維持初始效率的69%，未來期望能應用在無人飛行器、穿戴式電子裝置。

    In this thesis, we study the stability of ultra-thin and lightweight polymer organic solar cells (PSC) with high power-to-weight ratio, a polymer solar cell was fabricated on Polychloroparaxylene (Parylene-C) substrate with extremely lightweight (3.17 g/m2), that the polymer donor NTUST-1 and non-fullerene acceptor (NFA) NTUST-2 use as active layer, the molybdenum trioxide (MoO3)/silver (Ag)/tungsten oxide (WO3) (MAW) structure use as the light incident top cathode in inverted structure, the highest power conversion efficiency (PCE) of PSC realize 9.9%, the total thickness of 2 um and a high power-per-weight ratio of 27.58 W/g.
    In addition, ultrathin and lightweight polymer solar cells which have a high power-per-weight ratio maintain 69% of their initial efficiency after thin film encapsulation by Atomic Layer Deposition (ALD) and storage in the atmosphere for 648 hours. In the future, It is expected to be applied at unmanned aerial vehicles, wearable electronics.

    致謝 i 中文摘要 ii Abstract iii 目錄 iv 圖索引 vii 表索引 x 第一章 緒論 1 1.1 前言 1 1.2 太陽能電池簡介 2 1.2.1 矽晶圓 2 1.2.2 矽薄膜 2 1.2.3 無機化合物[10] 2 1.2.4 有機化合物[11] 2 1.2.5 染料敏化 3 1.2.6 量子點[13] 3 1.2.7 鈣鈦礦[14] 3 1.3 OPVs的結構演變 4 1.3.1 單層結構 (Single Layer) 4 1.3.2 雙層結構 (Bilayer) 5 1.3.3 塊狀異質接面結構 (Bulk Heterojunction) 6 1.3.4 連續塊狀異質接面結構 8 1.4 聚一氯對二甲苯基板與傳統柔性基板簡介 9 第二章 研究動機與文獻回顧 10 第三章 基礎理論 16 3.1 有機太陽能電池工作原理 16 3.1.1 光子吸收 16 3.1.2 激子擴散 17 3.1.3 激子拆解 17 3.1.4 電荷收集 17 3.2 有機太陽能電池等效電路 18 3.3 電流密度-電壓(J-V)特性曲線 19 3.3.1 開路電壓 20 3.3.2 短路電流密度 21 3.3.3 填充因子 21 3.3.4 功率轉換效率 21 3.3.5 串聯電阻(RS)與並聯電阻(RP) 22 第四章 實驗架構 23 4.1 實驗設備與量測儀器 23 4.1.1 超音波震盪清洗機 23 4.1.2 旋轉塗佈機 23 4.1.3 高真空熱蒸鍍機 24 4.1.4 高分子鍍膜機 25 4.1.5 原子層沉積 26 4.1.6 氮氣手套箱 28 4.1.7 薄膜厚度輪廓量測儀 28 4.1.8 四點探針面電阻量測儀 29 4.1.9 太陽光模擬量測儀 29 4.1.10 外部量子效率量測儀 30 4.2 實驗前準備 32 4.2.1 濕製程溶液準備 32 4.3 實驗步驟 32 4.3.1 玻璃基板清洗 32 4.3.2 柔性基板製作 32 4.3.3 底電極蒸鍍 33 4.3.4 主動層與ETL旋轉塗佈 34 4.3.5 電動傳輸層與上電極蒸鍍 34 4.3.6 玻璃封裝 35 4.3.7 原子層沉積薄膜封裝 36 4.4 量測與分析 37 4.4.1 薄膜特性 37 4.4.2 元件光電特性 37 4.4.3 元件外部量子效率 37 4.4.4 元件照光穩定性 37 第五章 結果與討論 38 5.1 薄膜特性 38 5.1.1 主動層材料特性 38 5.1.2 陰極薄膜特性 39 5.2 元件特性 39 5.2.1 玻璃基板及Parylene基板元件比較 39 5.2.2 柔性基板厚度調變 41 5.2.3 玻璃封裝元件與ALD封裝元件比較 42 5.2.4 柔性元件之功率重量比 44 第六章 結論與未來展望 46 參考文獻 47

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