Journal
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
Volume 214, Issue 10, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssa.201700268
Keywords
CH3NH3PbI3-xClx; copper; perovskite; photovoltaics
Funding
- Super Cluster Program of Japan Science and Technology Agency (JST)
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This paper presents the effects of copper (Cu) addition on the photovoltaic properties of perovskite CH3NH3PbI3-xClx solar cells. The effects were investigated by measuring the current density-voltage (J-V) characteristics and external quantum efficiency. In the present work, CuBr and CuBr2 were used as additives. The photovoltaic properties of the CuBr-added CH3NH3PbI3-xClx devices showed a clear improvement. Structural and optical properties of the CuBr- and CuBr2-added CH3NH3PbI3-xClx films were also investigated. Based on the present results, the changes in the photovoltaic properties were discussed.
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