Stabilizing 2D Pt‐Based Halide Perovskites via Solvent Lone Pair Donation
Huilong Liu,
Maitreyo Biswas,
Walter J. Smith
et al.
Abstract:Platinum‐based halide perovskites exhibit promising optoelectronic properties along with merits of low‐temperature processing and stability. Current research on Pt halide perovskites is limited to 0D A2BX6 structure as the ABX3 3D structure is thermodynamically unstable. Herein, the study reports the stabilization of the ABX3 structure into a 2D layered phase, CsPtI3(DMSO), that is stable up to 181.5 °C. The 2D phase shows an excitonic peak at the absorption edge of 600 nm, indicating quantum confinement. It a… Show more
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