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Fig. 6 | Nanoscale Research Letters

Fig. 6

From: Fundamental Study on the Fabrication of Inverted Planar Perovskite Solar Cells Using Two-Step Sequential Substrate Vibration-Assisted Spray Coating (2S-SVASC)

Fig. 6

CLSM images (above) and SEM images (below) of perovskite thin films prepared by a sequential spray coating on stationery substrate (run 7), b 2S-SVASC at a power of 5 W (run 6), c 2S-SVASC at a power of 10 W (run 8), d co-spray-on stationary substrate (run 9m), and (e) co-spray-on a vibrating substrate (run 10m). Run 9m has been performed by co-spray using the conditions of run 7, performed by sequential sprays, and run 10m has been performed by co-spray, using the conditions of run 6, performed by sequential sprays. The background small grain film detected in SEM images is PEDOT: PSS

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