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PDCBT is used as the hole transport layer in a perovskite solar cell (PSC) to enhance its performance (PCE = 21.2%) and its stability (95% of peak efficiency retained after 1000 hours). This high-bandgap polymer can also be used in an organic photovoltaic device (OPV) as a p-type material with a non-fullerene acceptor to achieve a PCE > 10%.

[1]PSC: Hou, Y.; Du, X.; Scheiner, S.; McMeekin, D. P.; Wang, Z.; Li, N.; Killian, M. S.; Chen, H.; Richter, M.; Levchuk, I.; Schrenker, N.; Spiecker, E.; Stubhan, T.; Luechinger, N. A.; Hirsch, A.; Schmuki, P.; Steinrück, H.-P.; Fink, R. H.; Halik, M.; Snaith, H. J.; Brabec, C. J.Science 2017, 358, 1192-1197.

[2]OPV: Qin, Y.; Uddin, M. A.; Chen, Y.; Jang, B.; Zhao, K.; Zheng, Z.; Yu, R.; Shin, T. J.; Woo, H. Y.; Hou, J. Adv. Mater. 2016, 28, 9416-9422.

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