Turn‐on Circularly Polarized Luminescence in Chiral Indium Chlorides by 5s2 Metal Centers DOI Creative Commons
Zhiyu Wang, Xiaoming Wang, Zhongwei Chen

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(17)

Published: Dec. 17, 2022

Introducing chirality into the metal-halide hybrids has enabled many emerging properties including chiroptical activity, spin-dependent transport, and ferroelectricity. However, most of chiral to date are non-emissive, underlying mechanism remains elusive. Here, we show a new strategy turn on circularly polarized luminescence (CPL) in hybrids. We demonstrate that alloying Sb3+ indium-chloride dramatically increases photoluminescence quantum yield two series indium-antimony chlorides. These materials exhibit strong CPL signals with tunable energy high dissymmetry factor up 1.5×10-2 . Mechanistic studies reveal emission originates from self-trapped excitons centered 5s2 Moreover, near-ultraviolet pumped white light is demonstrated polarization 6.0 %. Our work demonstrates strategies towards highly luminescent

Language: Английский

Materials for chiral light control DOI
Jeanne Crassous, Matthew J. Fuchter, Danna E. Freedman

et al.

Nature Reviews Materials, Journal Year: 2023, Volume and Issue: 8(6), P. 365 - 371

Published: March 13, 2023

Language: Английский

Citations

113
High-performance metal halide perovskite transistors DOI
Ao Liu, Huihui Zhu, Sai Bai

et al.

Nature Electronics, Journal Year: 2023, Volume and Issue: 6(8), P. 559 - 571

Published: Aug. 7, 2023

Language: Английский

Citations

68
The rise of halide perovskite semiconductors DOI Creative Commons
Chenlu He, Xiaogang Liu

Light Science & Applications, Journal Year: 2023, Volume and Issue: 12(1)

Published: Jan. 15, 2023

Advances in metal-halide perovskite semiconductors have significantly influenced light-current conversion technologies. The excellent structural and compositional tunability of perovskites, coupled with their exceptional quantum yields for photoluminescence, make them a promising candidate optoelectronic devices.

Language: Английский

Citations

64
Fundamentals, Advances, and Artifacts in Circularly Polarized Luminescence (CPL) Spectroscopy DOI Creative Commons
Winald R. Kitzmann, J. Freudenthal, Antti‐Pekka M. Reponen

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(44)

Published: Sept. 1, 2023

Objects are chiral when they cannot be superimposed with their mirror image. Materials can emit light an excess of right- or left-handed circular polarization. This circularly polarized luminescence (CPL) is key to promising future applications, such as highly efficient displays, holography, sensing, enantiospecific discrimination, synthesis drugs, quantum computing, and cryptography. Here, a practical guide CPL spectroscopy provided. First, the fundamentals technique laid out detailed account recent experimental advances achieve sensitive accurate measurements given, including all corrections required obtain reliable results. Then most common artifacts pitfalls discussed, especially for study thin films, example, based on molecules, polymers, halide perovskites, opposed dilute solutions emitters. To facilitate adoption by others, custom operating software made publicly available, equipping reader tools needed successful determination.

Language: Английский

Citations

48
Bright Circularly Polarized Mechanoluminescence from 0D Hybrid Manganese Halides DOI
Xin He,

Yuantian Zheng,

Zhishan Luo

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(15)

Published: Jan. 17, 2024

Hybrid metal halides (HMHs) with efficient circularly polarized luminescence (CPL) have application prospects in many fields, due to their abundant host-guest structures and high photoluminescence quantum yield (PLQY). However, CPLs HMHs are predominantly excited by light or electricity, limiting use multivariate environments. It is necessary explore a novel excitation method extend the of chiral as smart stimuli-responsive optical materials. In this work, an enantiomeric pair 0D hybrid manganese bromides, [H

Language: Английский

Citations

26
Room-temperature spin injection across a chiral perovskite/III–V interface DOI
Matthew P. Hautzinger, Xin Pan, Steven C. Hayden

et al.

Nature, Journal Year: 2024, Volume and Issue: 631(8020), P. 307 - 312

Published: June 19, 2024

Language: Английский

Citations

23
Green Spin Light-Emitting Diodes Enabled by Perovskite Nanocrystals in Situ Modified with Chiral Ligands DOI Creative Commons
Desui Chen, Bing Tang, A. A. Sergeev

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 815 - 821

Published: Jan. 15, 2025

Spin-polarized light-emitting diodes (spin-LEDs) hold promise for next-generation technologies across optical communication, biological imaging, and quantum information processing. Chiral metal halide perovskites, which combine advantageous optoelectronic properties with chirality, are promising materials high-performance spin-LEDs. However, such spin-LEDs still suffer from low efficiency limited brightness, as they often rely on low-dimensional chiral perovskites rather inferior charge-transport spin filter layers. Herein, we demonstrate bright efficient green based perovskite nanocrystals emitters. We employed an in situ ligand modification using R-/S-1-(4-bromophenyl)-ethylammonium bromide to imprint chirality onto CsPbBr3 nanocrystals, exhibited both a high photoluminescence yield of 89% improved relaxation lifetime. A remarkable spin-polarization 88% was observed the nanocrystal films. Consequently, our without commonly used layer simultaneously achieved maximum brightness 12,800 cd m–2, record-high peak external 15.4%, circularly polarized electroluminescence dissymmetry factor 2.16 × 10–3 at room temperature, setting new benchmarks perovskite-based

Language: Английский

Citations

2
Revealing the Intrinsic Chiroptical Activity in Chiral Metal-Halide Semiconductors DOI
Zixuan Zhang, Zhiyu Wang, Herman H. Y. Sung

et al.

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(48), P. 22242 - 22250

Published: Nov. 18, 2022

The combination of chirality and semiconducting properties has enabled chiral metal-halide semiconductors (MHS) to be promising candidates for spin- polarization-resolved optoelectronic devices. Although several MHS with rich chemical structural diversity have been reported lately, the macroscopic origin chiroptical activity remains elusive. Here, combining spectroscopic measurements Mueller matrix analysis, we discover that previously "apparent" anisotropy factor measured from circular dichroism (CD) in thin films is not an intrinsic property, but rather, arising interference between film's linear birefringence (LB) (LD). We verify presence LB LD effects both one-dimensional zero-dimensional films. establish methods decouple genuine CD other spurious contributions, which allows a quantitative comparison across different MHS. relationship structure then uncovered, well described by chirality-induced spin-orbit coupling structures. Our study unveils provides design principles obtaining high anisotropic factors future applications.

Language: Английский

Citations

69
Free Halogen Substitution of Chiral Hybrid Metal Halides for Activating the Linear and Nonlinear Chiroptical Properties DOI

Junjie Guan,

Yongshen Zheng,

Puxin Cheng

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(49), P. 26833 - 26842

Published: Dec. 1, 2023

Halogen substitution has been proven as an effective approach to the band gap engineering and optoelectronic modulation of organic–inorganic hybrid metal halide (OIHMH) materials. Various high-performance mixed OIHMH film materials have primarily obtained through coordinated halogens in their inorganic octahedra. Herein, we propose a new strategy free halogen outside octahedra for constructing single crystals with chiral structures, resulting boost linear nonlinear chiroptical properties. The from DMA4[InCl6]Cl (DMA = dimethylammonium) DMA4[InCl6]Br facile antisolvent vaporization method produces centimeter-scale high thermal stability along quantum yield photoluminescence, conspicuous circularly polarized luminescence, greatly enhanced second harmonic generation (SHG). In particular, crystal features intrinsic structure, exhibiting significant SHG circular dichroism (SHG-CD) response highest reported anisotropy factor (gSHG-CD) 1.56 among enhancements both properties are directly attributed octahedral distortion. by confine introduced within sites lattice, thereby ensuring compositions successful employment such may broaden horizon regulation structures

Language: Английский

Citations

36
Chiral Inorganic Nanomaterials for Photo(electro)catalytic Conversion DOI
Wenlong Fu, Lili Tan, Pengpeng Wang

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(17), P. 16326 - 16347

Published: Aug. 4, 2023

Chiral inorganic nanomaterials due to their unique asymmetric nanostructures have gradually demonstrated intriguing chirality-dependent performance in photo(electro)catalytic conversion, such as water splitting. However, understanding the correlation between chiral characteristics and process remains challenging. In this perspective, we first highlight chirality source of briefly introduce photo(electro)catalysis systems. Then, delve into an in-depth discussion effects exerted by photo-electrochemistry properties, while emphasizing emerging for conversion. Finally, challenges opportunities conversion are prospected. This perspective provides a comprehensive overview potential which is beneficial further research area.

Language: Английский

Citations

30