@article { ISI:000483434700064,
	title = {Highly Efficient Perovskite Solar Cells with Neglectable Hysteresis and Increased Open Circuit Voltage via a Nickel Chloride Interface Modification},
	journal = {ACS APPLIED ENERGY MATERIALS},
	volume = {2},
	number = {8},
	year = {2019},
	month = {AUG},
	pages = {5883-5888},
	abstract = {Interface modification engineering has been widely used as a flexible and effective method to optimize the performance of perovskite photovoltaic devices. Herein, we adopt NiCl2 as a modifier to passivate the interface at the electron transporting layer (ETL) and perovskite layer to drive high-efficiency perovskite solar cells (PSCs) with increased open circuit voltage (V-oc) and neglectable hysteresis. The devices based on SnO2/NiCl2 ETL achieved a high V-oc (1.17 V) and power conversion efficiency (PCE) (19.46\%). The improvement is attributed to the increased energy level of the conduction band minimum (E-CBM) and reduced defect states by NiCl2 interface modification. Our findings provide an effective way to obtain higher V-oc and PCE values as well as neglectable hysteresis for planar PSCs.},
	issn = {2574-0962},
	doi = {10.1021/acsaem.9b01009},
	author = {Wang, Duo and Wu, Cuncun and Qi, Xin and Luo, Wei and Zhang, Yuqing and Zhang, Zehao and Guo, Xuan and Qu, Bo and Xiao, Lixin and Chen, Zhijian}
}
