Journal
SOLAR ENERGY
Volume 139, Issue -, Pages 484-488Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2016.10.005
Keywords
MoO3; wO(3); CH3NH3PbI3; Perovskite; PEDOT:PSS
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Funding
- Ministry of Science and Technology of the Republic of China [MOST 105-2221-E-027-055-, MOST 105-2218-E-027-009-]
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Inverted-type perovskite solar cells offer the potential of fabrication by low-temperature solution processing as an alternative to conventional-type perovskite solar cells. PEDOT:PSS is commonly used as the hole transport layer (HTL), but its acidic nature may damage the reliability and stability of the photovoltaic device. In this study, we demonstrate the use of MoOx and WOx HTLs as an alternative to PEDOT: PSS for planar CH3NH3PbI3 perovskite solar cells. Furthermore, the MoOx and WOx HTLs are treated using a UV-ozone treatment to improve the surface coverage of the perovskite layer. The resultant conversion efficiency (PCE) for the best cells at AM1.5G illumination with a shadow mask was 13.1%. (C) 2016 Elsevier Ltd. All rights reserved.
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