Journal
ORGANIC ELECTRONICS
Volume 18, Issue -, Pages 107-112Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2015.01.024
Keywords
Perovskite solar cells; External bias; Ion motion; Electric double layers
Funding
- National Natural Science Foundation of China [51273208]
- Hundred Talent Program of Chinese Academy of Sciences
- Zhejiang Provincial Natural Science Foundation of China [LR14E030002]
- Ningbo Natural Science Foundation of China [2012A610114]
- European Commission under a Marie Curie Intra-European Fellowship for Career Development
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Planar heterojunction perovskite solar cells were fabricated through a low temperature approach. We find that the device performance significantly depends on the external bias before and during measurements. By appropriate optimization of the bias conditions, we could achieve an 8-fold increase in the power conversion efficiency. The significant improvement in device performance might be caused by the ion motion in the perovskite under the external electric field. (C) 2015 Published by Elsevier B.V.
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