Publication

Facile synthesis and high performance of a new carbazole-based hole-transporting material for hybrid perovskite solar cells

Facile synthesis and high performance of a new carbazole-based hole-transporting material for hybrid perovskite solar cells
H. Wang, A.D. Sheikh, Q. Feng, F. Li, Y. Chen, W. Yu, E. Alarousu, C. Ma, M.A. Haque, D. Shi, Z.-S. Wang, O.F. Mohammed, O.M. Bakr, and T. Wu
ACS Photonics, 2 (7), pp 849–855, (2015)
H. Wang, A.D. Sheikh, Q. Feng, F. Li, Y. Chen, W. Yu, E. Alarousu, C. Ma, M.A. Haque, D. Shi, Z.-S. Wang, O.F. Mohammed, O.M. Bakr, and T. Wu
Perovskite solar cell, Carbazole, Hole-transporting material, Hole mobility
2015
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 materials. 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.



DOI: 10.1021/acsphotonics.5b00283