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IDT-2Br is a medium-high bandgap NFA that can produce a high PCE of over 10% with the p-type polymer PTB7-Th. A prominent feature of this blend is the very small energy loss (< 0.6 eV) in the cell, which allows for a very high open-circuit voltage in the device (> 1 V). [1] Blends using the IDT-2BR have been found to be thermally stable at 150oC. [2] A ternary blend using both IDT-2BR and PC71BM has also reached a PCE over 12% and using PPDT2FBT as the donor polymer enables a very high Voc of 1.11 V. [3]

[1] Cheng, P.; Zhang, M.; Lau, T.-K.; Wu, Y.; Jia, B.; Wang, J.; Yan, C.; Qin, M.; Lu, X.; Zhan, X. Adv. Mater. 2017, 29, 1605216.
[2] Xiao, J.; Chen, Z.; Zhang, G.; Li, Q.-Y.; Yin, Q.; Jiang, X.-F.; Huang, F.; Xu, Y.-X.; Yip, H.-L.; Cao, Y. J. Mater. Chem. C, 2018, 6, 4457
[3] Kim, M.; Lee, J.; Sin, D. H.; Lee, H.; Woo, H. Y.; Cho, K. ACS Appl. Mater. Interfaces 2018, 10, 25570

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