Highly Efficient Hybrid Photovoltaic Devices

高效率敏化之太陽能光電元件

陳信助(Hsin-Chu Chen)

《光學工程》 121期 (2013/04) Pp. 17-26

摘要

我們成功的利用硫化镉量子點溶液結合傳統砷化鎵太陽能電池，使之在長波長範圍有抗反射的作用而在短波長的紫外光波段有光子下轉換的作用。結合硫化镉量子點的砷化鎵太陽能電池相較於傳統的砷化鎵太陽能電池在光電轉換效率方面有18.9%的提升。此外，我們更細部的研究了在紫外光的作用之下，硫化镉量子點可以增加太陽能電池元件表面的光導電率以及提升元件之填充因子。

關鍵字

太陽能電池 ； 奈米材料

並列摘要

We demonstrate a hybrid design of traditional GaAs-based solar cell combined with colloidal CdS quantum dots. With anti-reflective feature at long wavelength and down-conversion at UV regime, the CdS quantum dot effectively enhance the overall power conversion efficiency by as high as 18.9% compared to traditional GaAs-based device. A more detailed study showed an increase of surface photoconductivity due to UV presence, and the fill factor of the solar cell can be improved accordingly.