奈秒脈衝雷射雕刻技術應用於不同柔性鈣鈦礦太陽能電池模組之研究

Abstract

隨著電力需求的上升，且要逐步淘汰化石燃料，增加可再生能源的占比，太陽能固然成為了研究重點，近幾年鈣鈦礦太陽能電池從光電轉換效率由2.3 % 提升到26.1 %以趨近研究很久的矽基太陽能電池，做為第三代太陽能材料能在短時間內提升這麼多相信過不久就能超越矽基材料的太陽能。此外，鈣鈦礦太陽能電池為薄膜材料其重量輕、可彎曲、製作容易為主要發展，但要作為商業上使用需朝向大面積發展。 本實驗應用商業性價比高的奈秒脈衝雷射，透過全雷射雕刻技術研究在柔性鈣鈦礦鈦陽能模組上進行。 最後研究成果可再常見的柔性高分子聚合物Polyethylene Terephthalate (PET) 與Polyethylene Naphthalate (PEN) 利用旋轉塗佈，製作出有效面積約1 cm2，PEN柔性基板光電轉換效率為11.9 %，PET 柔性基板光電轉換效率為10.5 %，相較於小面積的標準片光電轉換效率PEN下降了8.9 %，PET只下降了3.1 %，可運用此技術進行商業化生產，在生產成本上具有絕佳的競爭優勢。

As the demand for electricity rises and the gradual phasing out of fossil fuels becomes necessary, increasing the share of renewable energy has become a critical focus of research. In recent years, perovskite solar cells have seen their photoelectric conversion efficiency rise from 2.3% to 26.1%, approaching the efficiency of silicon-based solar cells that have been studied for a long time. As a third-generation solar material, perovskites have shown such rapid improvement in a short time, making it likely that they will soon surpass silicon-based solar cells. Furthermore, perovskite solar cells are thin-film materials that are lightweight, flexible, and easy to manufacture, making them ideal for development. However, for commercial use, large-area development is necessary. This experiment employs cost-effective nanosecond pulse lasers, using full laser engraving technology to study flexible perovskite solar modules. The final research results show that common flexible polymer substrates such as Polyethylene Terephthalate (PET) and Polyethylene Naphthalate (PEN), using spin coating, produced an effective area of approximately 1 cm². The photoelectric conversion efficiency of the PEN flexible substrate was 11.9%, while the PET flexible substrate had an efficiency of 10.5%. Compared to the small-area standard sheet photoelectric conversion efficiency, PEN decreased by 8.9% and PET only by 3.1%. This technique can be applied for commercial production, offering excellent competitive advantages in terms of production costs.