White-light emission in a chiral one-dimensional organic–inorganic hybrid perovskite

Abstract

A chiral one-dimensional organic–inorganic hybrid perovskite exhibits white-light emission with ultrahigh CRI.

Spintronics of Hybrid Organic–Inorganic Perovskites: Miraculous Basis of Integrated Optoelectronic Devices

“…Through the use of long organic cations, the work indicates that we can attain wide‐ranging white light emission in low‐dimensional perovskites. A very recent study has similarly obtained white light emission in a 1D perovskite material . Self‐trapped excitons cooperate with the organic part of the perovskite in a wire‐like chiral structure, to which the emission is attributed, along with an ultrahigh color rendering index (CRI) (93.9).…”

“…In 2006, Billing et al described the synthesis of chiral 2D perovskite single crystals that contained chiral ligands, while in 2017, Ahn et al reported the preparation of chiral 2D perovskite films that were subsequently subjected to spin‐polarized light absorption tests . In 2018, Yu Peng et al reported a chiral white‐light‐emissive 1D hybrid perovskite, C 5 H 14 N 2 PbCl 4 · H 2 O, with a CRI as high as 93.9 that almost meets the requirements for white‐light‐emissive materials . In 2018, Yuan et al crystallized a new lead halide perovskite material into nanowires by introducing chiral amines as organic components.…”

“…Copyright 2012, Springer Nature. e–g) Reproduced with permission . Copyright 2018, The Royal Society of Chemistry.…”

Chiral Perovskites: Promising Materials toward Next‐Generation Optoelectronics

“…e) Photoluminescence photographs and corresponding CIE chromaticity coordinates of 1 excited at 330, 344, and 360 nm, respectively. Reproduced with permission . Copyright 2018, Royal Society of Chemistry.…”

“…In addition, such chiral structures provide new opportunities for the precise regulation like color tuning and structure control, promoting the discovery and development of novel white‐light emission materials with high performance. Peng et al synthesized a 1D hybrid perovskite, C 5 H 14 N 2 PbCl 4 ·H 2 O, with a distinct quantum‐wire morphology . The photoluminescence of this perovskite material can be tuned from blue to yellow, and it showed a white‐light emission with a CIE chromaticity coordinate of (0.39, 0.37) at an excitation wavelength of 344 nm (Figure e).…”