Rice is one of the most important food crops in the world, and its yield restricts global food security. However, various diseases and pests of rice pose a great threat to food security. Among them, bacterial leaf blight (BLB) caused by
Considering low photoluminescence quantum yield (PLQY < 5%) of blue emissive CsPbCl3 bulk crystal and the high toxicity of Pb2+, it is significant to explore new single crystalline lead-free perovskites with highly efficient blue light emission. Herein, two new zero-dimensional (0D) hybrid indium halides of [H2EP]2InCl6·Cl·H2O·C3H6O and [H3AEP]InCl6··H2O (EP = 1-ethylpiperazine, AEP = N-aminoethyl piperazine) were prepared. Remarkably, these 0D indium halides display unusual blue light emissions (about 430 nm) with a highest PLQY of 13.44%. To the best of our knowledge, this work represents one of the first higher energy blue light emitters in hybrid indium perovskites, which would advance the research on lead-free hybrid halides for next-generation luminescent materials.
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Abstract Despite remarkable luminescent performance of 0D lead halide perovskites, achieving highly efficient blue light emission is extremely challenging and crucial for this domain. Considering the high toxicity of Pb 2+ ion, it is significant to explore water‐stable lead‐free 0D halides as highly efficient and stable blue emitting materials. To address these issues, a family of 0D hybrid zinc halides of AZnBr 4 (A = EP, BP, and TMPDA) based on discrete [ZnBr 4 ] 2− tetrahedrons is herein reported as desirable blue light emitters. The wide band gaps enable these 0D halides to display highly efficient blue light emissions (452–485 nm) with highest photoluminescence quantum yield (PLQY) of 35.47%. More importantly, all these 0D halides present extraordinary chemical stabilities in humid air and water for one month, and are also capable of withstanding extreme pH conditions in the range of 0–14, likely the widest observed pH range for perovskites. Notably, the ultrahigh chemical stabilities of 0D zinc halides are nearly unmatchable among all known literature perovskite materials to the best of the authors’ knowledge. Combined superiorities of unusual blue light emission, promising PLQY, ultrahigh stability, and non‐toxicity highlight the potential optoelectronic applications in wide chemical environments for these 0D zinc halides.
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