Correction to “Hybridization of Single Nanocrystals of Cs4PbBr6 and CsPbBr3”
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■ REFERENCES (1) Tizei, L. H. G.; Lin, Y.-C.; Mukai, M.; Sawada, H.; Lu, A.-Y.; Li, L.J.; Kimoto, K.; Suenaga, K. Exciton Mapping at subwavelength scales in two-dimensional materials. Phys. Rev. Lett. 2015, 114, 107601. (2) Sasaki, T.; Sawada, H.; Hosokawa, F.; Sato, Y.; Suenaga, K. Aberration-corrected STEM/TEM imaging at 15kV. Ultramicroscopy 2014, 145, 50−55. (3) Velaźquez, M.; Ferrier, A.; Pećhev, S.; Gravereau, P.; Chaminade, J. P.; Portier, X.; Moncorge,́ R. Growth and characterization of pure and Pr3+-doped Cs4PbBr6 crystals. J. Cryst. Growth 2008, 310, 5458−5463. (4) Andrews, R. H.; Clark, S. J.; Donaldson, J. D.; Dewan, J. C.; Silver, J. Solid-state properties of materials of the type Cs4MX6 (where M = Sn or Pb and X = Cl or Br). J. Chem. Soc., Dalton Trans. 1983, 4, 767−770.
منابع مشابه
Hybridization of Single Nanocrystals of Cs4PbBr6 and CsPbBr3
Nanocrystals of all-inorganic cesium lead halide perovskites (CsPbX3, X = Cl, Br, I) feature high absorption and efficient narrow-band emission which renders them promising for future generation of photovoltaic and optoelectronic devices. Colloidal ensembles of these nanocrystals can be conveniently prepared by chemical synthesis. However, in the case of CsPbBr3, its synthesis can also yield na...
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Lead halide perovskite nanocrystals (NCs) have emerged as attractive nanomaterials owing to their excellent optical and optoelectronic properties. Their intrinsic instability and soft nature enable a post-synthetic controlled chemical transformation. We studied a ligand mediated transformation of presynthesized CsPbBr3 NCs to a new type of lead-halide depleted perovskite derivative nanocrystal,...
متن کاملPostsynthesis Transformation of Insulating Cs4PbBr6 Nanocrystals into Bright Perovskite CsPbBr3 through Physical and Chemical Extraction of CsBr
Perovskite-related Cs4PbBr6 nanocrystals present a "zero-dimensional" crystalline structure where adjacent [PbBr6]4- octahedra do not share any corners. We show in this work that these nanocrystals can be converted into "three-dimensional" CsPbBr3 perovskites by extraction of CsBr. This conversion drastically changes the optoelectronic properties of the nanocrystals that become highly photolumi...
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A binary ligand system composed of aliphatic carboxylic acids and primary amines of various chain lengths is commonly employed in diverse synthesis methods for CsPbBr3 nanocrystals (NCs). In this work, we have carried out a systematic study examining how the concentration of ligands (oleylamine and oleic acid) and the resulting acidity (or basicity) affects the hot-injection synthesis of CsPbBr...
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We have developed a colloidal synthesis of nearly monodisperse nanocrystals of pure Cs4PbX6 (X = Cl, Br, I) and their mixed halide compositions with sizes ranging from 9 to 37 nm. The optical absorption spectra of these nanocrystals display a sharp, high energy peak due to transitions between states localized in individual PbX64- octahedra. These spectral features are insensitive to the size of...
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