Publication date: 2nd November 2020
Two-dimensional (2D) organic-inorganic hybrid perovskites have been introduced as promising materials to be employed in light-emitting diodes (PeLED) because of their unique optoelectronic properties and high binding energy compared to their three-dimensional (3D) counterparts. Here, we demonstrate perovskite films by mixing the different ratios (0:1, 1:6, 1:4, 1:2, 1:1, and 1:0) of 2D and 3D perovskite solutions to obtain quasi-2D perovskite layers applicable for PeLEDs. In this report, by investigating the optoelectronic properties of layers, it reveals that adding an appropriate amount of 2D solution to a convenient 3D solution (up to a certain value (1:4)) does not convert the 3D structure to quasi-2D plates. In other words, the small amount of 2D solution in 3D perovskite solution acts as an additive to improve the surface morphology which in turn can enhance the device performance.
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