2022
DOI: 10.1002/ange.202212668
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Dotierungs‐/Legierungswege zu bleifreien Halogenid‐Perowskiten mit ultimativen Photolumineszenz‐Quantenausbeuten

Abstract: Maßgeschneiderte Modifizierungen bleifreier Halogenid-Perowskite (BHP) durch Dotierung/Legierung mit Metallkationen gelten als vielversprechender Weg zu hocheffizienten anorganischen Leuchtstoffen mit Photolumineszenz (PL)-Quantenausbeuten von bis zu 100 %. Solche Materialien weisen typischerweise eine selektive Empfindlichkeit gegen UV-Licht, einen breiten PL-Bereich, lange PL-Lebensdauern und eine einzigartige Variabilität und Stabilität der Zusammensetzung auf -eine ideale Kombination für viele Lichtsammela… Show more

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Cited by 3 publications
(3 citation statements)
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“…18 In fact, it is well known that metal ion doping in all-inorganic perovskites is useful for modifying their optical and electronic properties. 19–21 However, STEs can hardly be obtained in 3D all-inorganic perovskites with cubic phase crystal structures, in spite of the size mismatch between the dopant and substituted atoms. The main obstacle is the difficulty of lattice distortion in 3D perovskites because octahedrons are firmly connected with each other through vertices.…”
Section: Introductionmentioning
confidence: 99%
“…18 In fact, it is well known that metal ion doping in all-inorganic perovskites is useful for modifying their optical and electronic properties. 19–21 However, STEs can hardly be obtained in 3D all-inorganic perovskites with cubic phase crystal structures, in spite of the size mismatch between the dopant and substituted atoms. The main obstacle is the difficulty of lattice distortion in 3D perovskites because octahedrons are firmly connected with each other through vertices.…”
Section: Introductionmentioning
confidence: 99%
“…[8][9][10][11][12][13][14][15] While a handful of approaches have been reported to alleviate the toxic concerns, such as the involvement of divalent tin (Sn 2+ ) or germanium (Ge 2+ ) ions doping, these methods would bring an additional challenge in LHP systems: the severe oxidation-related working instability in ambient. [16][17][18][19][20][21][22] Alternatively, a new invention of halide double perovskites (HDPs) of A 2 B + B 3+ X 6 (B + is monovalent cations, i.e., silver (Ag + ), sodium (Na + ), potassium (K + ); B 3+ is trivalent cations, i.e., indium (In 3+ ), bismuth (Bi 3+ ); X is monovalent halogen, i.e. bromine (Br -) and chlorine (Cl -)) has inspired a rich group of new materials and novel processing methods to effectively tackle the aforementioned issues.…”
Section: Introductionmentioning
confidence: 99%
“…[ 8–15 ] While a handful of approaches have been reported to alleviate the toxic concerns, such as the involvement of divalent tin (Sn 2+ ) or germanium (Ge 2+ ) ions doping, these methods would bring an additional challenge in LHP systems: the severe oxidation‐related working instability in ambient. [ 16–22 ]…”
Section: Introductionmentioning
confidence: 99%