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Rapid synthesis of hybrid methylammonium lead iodide perovskite quantum dots and rich MnI₂ substitution favouring Pb-free warm white LED applications.

ABSTRACT: We present a facile room temperature synthesis of CH₃NH₃Pb_1-x Mn _x I₃ perovskite quantum dots (PQDs) substituting manganese (Mn²⁺) at the lead (Pb²⁺) sites to minimize environmental pollution and make it commercially feasible. By varying the concentration of Mn²⁺ from 0 to 60%, the PQDs exhibit strong color tunability from red to orange color suggesting successful energy transfer due to Mn²⁺ inclusion. We observed a high external photoluminescence quantum yield (PLQY) of 98% for unsubstituted CH₃NH₃PbI₃ and >50% for up to 15% Mn²⁺ substituted PQDs. The average lifetime of PQDs was found to shorten with increasing Mn²⁺ replac

SUBMITTER: Singh RK

PROVIDER: S-EPMC9419008 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Rapid synthesis of hybrid methylammonium lead iodide perovskite quantum dots and rich MnI₂ substitution favouring Pb-free warm white LED applications.

OmicsDI is part of the ELIXIR infrastructure

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Rapid synthesis of hybrid methylammonium lead iodide perovskite quantum dots and rich MnI2 substitution favouring Pb-free warm white LED applications.

OmicsDI is part of the ELIXIR infrastructure

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Rapid synthesis of hybrid methylammonium lead iodide perovskite quantum dots and rich MnI₂ substitution favouring Pb-free warm white LED applications.