Mono- and Bi-Dentate Chiral Ligands Lead to Efficient Circularly Polarized Luminescence in 0D and 3D Semiconducting Copper(I) Iodides

Ji，Xiaoqin1; Liu，Yang1; Li，Ruiqian1; Zhang，Zixuan2; Zhang，Xuanyu3; Chen，Congcong1; Chen，Jian1; Lu，Haipeng2; Chen，Rui3; Mao，Lingling1

2023

10.1002/adom.202300541

Advanced Optical Materials   影响因子和分区

2195-1071

2195-1071

Chiral hybrid Cu(I)-based iodides with d closed shell demonstrate great potential for circularly polarized luminescence (CPL) because of high photoluminescence quantum yield (PLQY). Herein, by incorporating mono- or bi-dentate coordination mode ligands as chiral source, the self-assembly of four pairs of chiral hybrid Cu(I)-based iodides, namely, (R/S)-CuI(Hmpy)·HO (R/S-1), (R/S)-CuI(3Hpy) (R/S-2), (R/S)-CuI(2MePI) (R/S-3), and (R/S)-CuI(3AD) (R/S-4) (where R/S-Hmpy = R/S-2-pyrrolidinemethanol, R/S-3Hpy = R/S-3-hydroxypyrrolidine, R/S-2MePI = R/S-2-methylpiperazine, and R/S-3AD = R/S-3-aminopiperidine), are reported. With the monodentate and bidentate ligands, these materials belong to two different structural types: 0D molecular clusters (R/S-1, R/S-2) and 3D porous metal–organic frameworks (R/S-3, R/S-4). These materials all crystallize in non-centrosymmetric space groups containing similar basic CuI cubane tetramer building units but with different coordination modes. They are also semiconductors, with optical bandgaps ranging from 2.70 to 2.94 eV. The photoluminescence (PL) and circularly polarized luminescence (CPL) emissions are further characterized, where the highest PLQY of ≈95% and CPL dissymmetry factor (g) of ≈7 × 10 are achieved in R/S-1. This work offers a systematic comparison between different structural types with similar building blocks, bridging by the flexible chiral ligands, and shows that the hybrid copper iodides are highly promising candidates for next-generation optoelectronics and chiroptics.

chiral materials circularly polarized luminescence copper iodide photoluminescence quantum yield

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China (NSFC)[22275077] ; Stable Support Plan Program of Shenzhen Natural Science Fund[20220814233319001]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:000985722600001

WILEY-V C H VERLAG GMBH

20232014089609

Circular polarization ; Ligands ; Photoluminescence ; Quantum yield

Electricity: Basic Concepts and Phenomena:701.1 ; Electromagnetic Waves:711 ; Light/Optics:741.1 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2

2-s2.0-85159104738

Scopus

1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Department of Chemistry,The Hong Kong University of Science and Technology,Kowloon,999077,Hong Kong
3.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Ji，Xiaoqin,Liu，Yang,Li，Ruiqian,et al. Mono- and Bi-Dentate Chiral Ligands Lead to Efficient Circularly Polarized Luminescence in 0D and 3D Semiconducting Copper(I) Iodides[J]. Advanced Optical Materials,2023,11.

Ji，Xiaoqin.,Liu，Yang.,Li，Ruiqian.,Zhang，Zixuan.,Zhang，Xuanyu.,...&Mao，Lingling.(2023).Mono- and Bi-Dentate Chiral Ligands Lead to Efficient Circularly Polarized Luminescence in 0D and 3D Semiconducting Copper(I) Iodides.Advanced Optical Materials,11.

Ji，Xiaoqin,et al."Mono- and Bi-Dentate Chiral Ligands Lead to Efficient Circularly Polarized Luminescence in 0D and 3D Semiconducting Copper(I) Iodides".Advanced Optical Materials 11(2023).