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. 2018 Aug 28;6:381. doi: 10.3389/fchem.2018.00381

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Copyright © 2018 Yu, Tian, Xu, Wang, Zhang, Niu and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Schematic illustration of the QLEDs with a multilayered structure, consisting of ITO/HIL/HTL/perovskite CsPbBr₃ QDs/BCP/LiF/Al. (B) AFM measurement shows the surface roughness of the spin-coated CsPbBr₃ QDs films (Rq = 0.53 nm) in the device configuration. (C) Surface SEM image of uniformly, compactly packed CsPbBr₃ QDs.