期刊
NANO ENERGY
卷 49, 期 -, 页码 163-171出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2018.04.026
关键词
NiO; Chemical bath deposition; Mesoporous; Hole transporting layer; Perovskite solar cells
类别
资金
- Monash Graduate Scholarship
- Monash International Postgraduate Research Scholarship programs
- Australian Research Council [CE170100026, LE130100072]
The development of hole transporting layers that optimize charge extraction and minimize interfacial recombination losses offer an important route for further enhancement in the performance of inverted perovskite solar cells (PSCs). NiO is a widely adopted hole transporting material in such devices, possessing a reasonably high hole mobility and suitable energy level positions to provide high efficiency solar cells. However, its use in inverted PSCs has typically resulted in relatively low fill factors, which arises from underlying contact issues between the perovskite and NiO layers. In this work, we address this issue by employing a thin mesoporous NiO scaffold formed via chemical bath deposition as the hole transporting layer. This hole transporting material is found to dramatically improve the performance of inverted mixed cation and anion PSCs by enhancing their light harvesting and charge transporting efficiencies. Optimized devices achieve efficiencies of up to 16.7% and fill factors as high as 85%. These values are significantly higher than PSCs using conventionally spray-deposited planar NiO hole transport layers, which exhibit efficiencies of up to 14.5% and fill factors of only 73%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据