在本論文中，我們利用不同的退火條件製作有機高分子太陽能電池，尤其是利用雷射退火處理元件。有機材料P3HT的吸收光譜範圍座落於綠光波段，所以本論文利用波長532奈米的綠光雷射當做雷射源。本論文的重點是針對雷射的光處理而非熱處理，因此實驗所使用的雷射瓦數只有50 mW。根據實驗結果，雷射退火不但可增加P3HT側鏈的π電子傳輸，亦可增加高分子鏈的共軛長度，進而提升分子的結晶性。本論文中最佳元件製備條件為濃度4wt%，退火條件是同時使用雷射退火及熱退火(130℃)五分鐘，其元件特性之短路電流為8.48 mA/cm2、開路電壓為0.61 V、理想因子為0.55%，效率可達2.83%。將本實驗與熱退火(大部分研究團隊所採用的)做比較後，本論文最重要的特色是發現雷射退火可降低一半的製程時間。

In this thesis, we fabricated the organic polymer solar cells with different annealing condition, especially using laser annealing. We used 532nm green laser as the laser annealing source because the maximum intensity of P3HT absorption spectrum is located at the range of green light. The power of laser is only 50mW as we focused on the light treatment. The experimental results demonstrated laser can not only significantly enhance the π-electron transport in the interchain associated with the hexyl chains but also increase the conjugation length of the polymer chain by laser annealing. The optimal device is 4wt% concentration treated with laser and thermal annealing simultaneously for 5min, the short circuit current density (JSC) is 8.48mA/cm2, open circuit voltage (VOC) is 0.61V, fill factor (FF) is 0.55, and power conversion efficiency (PCE) is 2.83%. The most important characteristic of this thesis is that we reduced half of the processing time by laser annealing when compared with thermal annealing.

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