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. Author manuscript; available in PMC: 2018 Sep 28.
Published in final edited form as: J Mater Chem A Mater. 2017 Aug 23;5(36):19485–19490. doi: 10.1039/c7ta06338e

Fig. 1.

Fig. 1

(a) Device structure of the inverted PSC using α-DMEC70, mix-DMEC70, or PC71BM as the ETM. (b) Schematic illustration of the estimated HOMO and LUMO energy levels, calculated from CV and UV-vis. (c) Top-view SEM image of CH3NH3PbI3 deposited on PEDOT:PSS. (d) Cross-sectional SEM image of an inverted PSC.