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3576454 
Journal Article 
Fully vacuum-processed perovskite solar cells with high open circuit voltage using MoO3/NPB as hole extraction layers 
Kim, B; Kim, T; Choi, M; Shim, H; Kim, J 
2015 
1 
Organic Electronics
ISSN: 1566-1199 
17 
102-106 
WOS:000348495400014 
We report fully vacuum-processed perovskite solar cells with high open circuit voltage. All the layers in the solar cells including the perovskite active layer, hole extraction layers and electron extraction layers were deposited in the vacuum process. Use of molybdenum oxide (MoO3) as an interfacial layer and N, N'-Di(1-naphthyl)-N, N'-diphenyl-(1,1'-biphenyl)- 4,4'-diamine (NPB) as a hole transport material (HTM) for hole extraction resulted in a high open circuit voltage (V-OC) of 1.12 V. Due to the effective hole extraction and high VOC, the devices showed a maximum power conversion efficiency (PCE) of 13.7%. The vacuum processed perovskite solar cells showed relatively high reproducibility showing the average value of PCE of 11.1%. (C) 2014 Elsevier B.V. All rights reserved. 
Organic/inorganic hybrid perovskite solar; cell; Full vacuum-process; Reproducibility; MoO3; NPB