Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 4, Issue 38, Pages 9003-9008Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc03077g
Keywords
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Funding
- National Natural Science Foundation of China [51302137, 11174163, 11374168]
- K. C. Wang Magna Fund in Ningbo University of China
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Low-cost inorganic copper iodide (CuI) is introduced as a potential oxidizer for hole-transport material (HTM) in perovskite solar cells (PSCs). Characterization of oxidizability and energy levels indicates that the CuI can effectively oxidize spiro-MeOTAD. Through solvent engineering and concentration optimization, the CuI (20% mole ratio) doped spiro-MeOTAD gives higher power conversion efficiency (PCE) than that of the FK209 dopant. This work shows the promise of a state-of-the-art method using a low-cost dopant for hole transport material in perovskite solar cells.
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