High‐Performance Perovskite‐Based Blue Light‐Emitting Diodes with Operational Stability by Using Organic Ammonium Cations as Passivating Agents

Blue emissive perovskites can be prepared by incorporating chlorine into bromine‐based perovskites to tune their bandgap. However, mixed‐halide perovskites exhibit intrinsic phase instability, particularly under electrical potential, owing to halide migration. To achieve high‐performance blue perovs...

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Veröffentlicht in:	Advanced functional materials 2021-01, Vol.31 (5), p.n/a
Hauptverfasser:	Kim, Yun Cheol, An, Hee Ju, Kim, Do Hoon, Myoung, Jae‐Min, Heo, Ye Jin, Cho, Jeong Ho
Format:	Artikel
Sprache:	eng
Schlagworte:	blue emission Bromine Cations Chlorine halide migration Materials science organic ammonium cations passivating agents perovskite light‐emitting diodes Perovskites Quantum efficiency Spectral emittance Stability
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