Royal Society of Chemistry

Figure 1.17

Plane-view SEM images of CH3NH3PbI3 formed by a two-step spin coating method using a solution of CH3NH3I in IPA (35 mg in 5 mL) with (a) 10 µL DMF, (b) 50 µL DMF, (c) 100 µL DMF and (d) without DMF. CH3NH3PbI3 was deposited on a 100 nm-thick mesoporous TiO2 (diameter of about 40 nm) layer. Scale bars: 1 µm (200 nm in insets).Reproduced with permission from J.-H. Im, J. Luo, M. Franckevicius, N. Pellet, P. Gao, T. Moehl, S. M. Zakeeruddin, M. K. Nazeeruddin, M. Grätzel and N.-G. Park, Nano Lett., 2015, 15, 2120–2126. Copyright (2015) American Chemical Society.30

Plane-view SEM images of CH₃NH₃PbI₃ formed by a two-step spin coating method using a solution of CH₃NH₃I in IPA (35 mg in 5 mL) with (a) 10 µL DMF, (b) 50 µL DMF, (c) 100 µL DMF and (d) without DMF. CH₃NH₃PbI₃ was deposited on a 100 nm-thick mesoporous TiO₂ (diameter of about 40 nm) layer. Scale bars: 1 µm (200 nm in insets).Reproduced with permission from J.-H. Im, J. Luo, M. Franckevicius, N. Pellet, P. Gao, T. Moehl, S. M. Zakeeruddin, M. K. Nazeeruddin, M. Grätzel and N.-G. Park, Nano Lett., 2015, 15, 2120–2126. Copyright (2015) American Chemical Society.³⁰

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