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Resonant Band-Edge Emissive States in Strongly Confined CsPbBr3 Perovskite Nanoplatelets

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Summary: Lead halide perovskites show potential for light-emitting devices, with reduced-dimensional perovskite materials exhibiting enhanced photoluminescence due to large exciton binding energy. However, nanocrystals with smaller sizes may have increased surface defects, leading to faster photoluminescence decay. A study on quasi-1D CsPbBr3 perovskite nanoplatelets discovered fast photoluminescence decay and proposed a model to confirm shallow traps, as well as revealed the presence of deep trap states in aged nanoplatelets.

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