Two-dimensional Layered Perovskite (2DLP) crystals are an attractive alternative to three-dimensional counterparts due to their tunable properties, bright emission and in particular, their environmental stability. Due to the strong correlation with structural configuration, researchers have found many ways to tune the emission.1 Which includes producing crystals with different organic cations which induce distortions and different connectivity in the structure. Investigations for producing single source of white light, have been mostly explored by complex organic cations, halide combinations and doping. Interestingly, highly emitting broadband 2DLP emitters are mostly corrugated structures produced through complex synthetic routes. Considering this, we have explored the influence of reaction medium polarity for the tunability of emission in Lead based Ruddlesdon-Popper 2DLP with a simple fabrication method that was developed previously in our group.2 Our experiments shows that the reaction medium polarity has direct correlation in shape control of the crystals as well the emission color as the synthesis in relatively non-polar media yields broad-band emitting crystals having PLQY up to 15%.
Solvent Engineering of 2D Layered Perovskites for White Light Emission
Aarya Prabhakaran;Liberato Manna;
2023-01-01
Abstract
Two-dimensional Layered Perovskite (2DLP) crystals are an attractive alternative to three-dimensional counterparts due to their tunable properties, bright emission and in particular, their environmental stability. Due to the strong correlation with structural configuration, researchers have found many ways to tune the emission.1 Which includes producing crystals with different organic cations which induce distortions and different connectivity in the structure. Investigations for producing single source of white light, have been mostly explored by complex organic cations, halide combinations and doping. Interestingly, highly emitting broadband 2DLP emitters are mostly corrugated structures produced through complex synthetic routes. Considering this, we have explored the influence of reaction medium polarity for the tunability of emission in Lead based Ruddlesdon-Popper 2DLP with a simple fabrication method that was developed previously in our group.2 Our experiments shows that the reaction medium polarity has direct correlation in shape control of the crystals as well the emission color as the synthesis in relatively non-polar media yields broad-band emitting crystals having PLQY up to 15%.
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