Fig. 4: Optimisation of film fabrication methods. | Nature Communications

Fig. 4: Optimisation of film fabrication methods.

From: Advancing intercalation strategies in layered hybrid perovskites by bringing together synthesis and simulations

Fig. 4

a Schematic showing the direct spin-coating method. b Images of thin films from optical microscopy studies of [H3N(CH2)8NH3]PbI4·I2 when prepared using the direct spin-coating method. c Schematic showing the process of the post-synthetic intercalation method. d Corresponding PXRD patterns of [H3N(CH2)8NH3]PbI4·I2 and [H3N(CH2)8NH3]PbI4·I2 thin films. Images of thin films from optical microscopy studies of e [H3N(CH2)8NH3]PbI4 prepared using the direct spin-coating method and f [H3N(CH2)8NH3]PbI4·I2 prepared using the post-synthetic intercalation method. g Br2 intercalation and bromide ion exchange process in a [H3N(CH2)6NH3]PbI4 thin film prepared via a post-synthetic Br2 intercalation method.

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