Development of Mixed‐Cation CsxRb1–xPbX3 Perovskite Quantum Dots and Their Full‐Color Film with High Stability and Wide Color Gamut
Source abstract
Abstract
Abstract Mixed‐cation CsxRb1–xPbX3 (X = Cl, Br, I) perovskite quantum dots (PeQDs) are developed and show high quantum yields of 93% and 86% for green and blue wavelengths, respectively. The stability is significantly improved under heat, UV, and water aging conditions. These improved properties are explained by the increased defect formation resistance and exciton binding energy with Rb incorporation. Perovskite films are fabricated using CsxRb1–xPbX3 PeQDs and cyclic olefin copolymer. The films have a wide color gamut covering up to 104.15% of the BT.2020‐defined color space, with the white light color coordinates of (0.33, 0.32), luminance of 68.86 Cd m−2, and correlated color temperature of 5299 K at 20 mA.
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Research context
OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Organic Light-Emitting Diodes Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Nanomaterials Laboratory Department of Molecular Science and Technology Ajou University Suwon 16499 Republic of Korea
X‐Task Department of CTO LG Innotek LG Science Park Seoul 07796 Republic of Korea
Department of Chemical and Biological Engineering Korea University Seoul 17104 Republic of Korea
Department of Materials Science and Engineering Hanbat National University Daejeon 34158 Republic of Korea
Funding
National Research Foundation of Korea · Ministry of Science, ICT and Future Planning
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