複數陽離子對鈣鈦礦太陽能電池的效應

Abstract

在此篇論文中，我們研究了在金屬鈣鈦礦太陽能電池中添加多陽離子的效果. 通過使用X射線衍射（XRD）和掃描電子顯微镜（SEM）分别觀察鈣鈦礦材料中銫離子的不同命題，觀察結構和形態變化. 已經採用瞬態光電壓和光電流測量來獲得載流子壽命和電荷濃度. 用0.15原子比的銫制备的器件在其他器件中表現出最好的性能. 電力轉換效率從10.5%提高到了13.2%.

In this work, we studied the effects of adding mutiple cations in oragnaometal perovskite solar cells. Structural and morphological changes were observed through using X-ray diffraction (XRD) and scanning electron microscopy (SEM) respectively, for different proposition of cesium ions in the perovskite material. Transient photovoltage and photocurrent measurements have been employed to obtain carrier lifetimes and charge concentrations. The device prepared with 0.15 atomic ratio of cesium showed the best performance among the devices others. Power conversion efficiency has been increased from 10.5% to 13.2%.