Fig. 1: Preferential horizontal and vertical orientation of LDP thin films. | Nature Communications

Fig. 1: Preferential horizontal and vertical orientation of LDP thin films.

From: Vertically oriented low-dimensional perovskites for high-efficiency wide band gap perovskite solar cells

Fig. 1

a Schematic representation of the fabrication method for TMA2MAPb2I7 LDP thin films. b GIWAXS results and c crystal structure orientation of horizontal LDP thin films. Crystal planes are oriented along the [010] direction. d Schematic representation of the fabrication method for TMA2MAPb2I7 LDP thin films fabricated by substituting 70% of MAI with MACl. e GIWAXS results and f crystal structure orientation of vertical LDP thin films. Crystal planes are oriented along two different directions, namely [101] and [001], both of which are perpendicular to the substrate. g PF images for horizontal (at the top) and vertical (at the bottom) LDPs for (202) lattice plane and Wulff stereographic projections for the [010] and [101] orientations.

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