AI Article Synopsis
- - The study focuses on creating a new all-inorganic layered perovskite, Rb CdCl I, which emits "warm" white light with a high color rendering index of 88, distinguishing it as the first of its kind.
- - Rb CdCl I is thermally stable at temperatures up to 575 K, and its white-light emission is attributed to the deformation of the lattice associated with the [CdCl I] octahedra due to differing ionic radii of the chlorine and iodine halogens.
- - First-principles calculations indicate that both Cl and I significantly influence the electronic properties of Rb CdCl I, suggesting that blending halogens can lead to innovative single-component white-light-em
Article Abstract
Most of single-component white-light-emitting materials focus on organic-inorganic hybrid perovskites, metal-organic frameworks, as well as all-inorganic semiconductors. In this work, we successfully assembled an all-inorganic layered perovskite by mixing two halogens of distinct ionic radii, namely, Rb CdCl I , which emits "warm" white light with a high color rendering index of 88. To date, Rb CdCl I is the first single-component white-light-emitting material with an all-inorganic layered perovskite structure. Furthermore, Rb CdCl I is thermally highly stable up to 575 K. A series of luminescence measurements show that the white-light emission arises from the lattice deformation, which are closely related to the [CdCl I ] octahedra with high distortion from the distinct ionic radii of Cl and I. The first-principles calculations reveal that both the Cl and I components make significant contributions to the electronic band structures of Rb CdCl I . These findings indicate that mixing halogens is an effective route to design and synthesize new single-component white-light-emitting materials.
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| http://dx.doi.org/10.1002/chem.201802056 | DOI Listing |
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