Journal
ACS PHOTONICS
Volume 2, Issue 7, Pages 849-855Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.5b00283
Keywords
perovskite solar cell; carbazole; hole-transporting material; hole mobility
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Funding
- King Abdullah University of Science and Technology (KAUST)
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Perovskite solar cells are very promising for practical applications owing to their rapidly rising power conversion efficiency and low cost of solution-based processing. 2,2',7,7'-Tetrakis(N,N-di-p-methoxyphenylamine) 9,9'-spirobifluorene (Spiro-OMeTAD) is most widely used as a hole-transporting material (HTM) in perovskite solar cells. However, the tedious synthesis and high cost of Spiro-OMeTAD inhibit its commercial-scale application in the photovoltaic industry. In this article, we report a carbazole-based compound (R01) as a new HTM in efficient perovskite solar cells. R01 is synthesized via a facile route consisting of only two steps from inexpensive commercially available Furthermore, R01 exhibits higher hole mobility and conductivity than the state-of-the-art Spiro-OMeTAD. Perovskite solar cells fabricated with R01 produce a power conversion efficiency of 12.03%, comparable to that obtained in devices using Spiro-OMeTAD in this study. Our findings underscore R01 as a highly promising HTM with high performance, and its facile synthesis and low cost may facilitate the large-scale applications of perovskite solar cells.
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