One-Dimensional Chiral Copper Iodide Chain-Like Structure Cu4I4(R/S-3-quinuclidinol)(3) with Near-Unity Photoluminescence Quantum Yield and Efficient Circularly Polarized Luminescence

Chen, Jian1; Pan, Xin1; Zhang, Xuanyu2; Sun, Chen1; Chen, Congcong1; Ji, Xiaoqin1; Chen, Rui2; Mao, Lingling1

2023-03-01

10.1002/smll.202300938

SMALL   Impact Factor & Quartile

1613-6810

1613-6829

Chiral organic-inorganic hybrid metal halide materials have shown great potential for circularly polarized luminescence (CPL) related applications for their tunable structures and efficient emissions. Here, this work combines the highly emissive Cu4I4 cubane cluster with chiral organic ligand R/S-3-quinuclidinol, to construct a new type of 1D Cu-I chains, namely Cu4I4(R/S-3-quinuclidinol)(3), crystallizing in noncentrosymmetric monoclinic P2(1) space group. These enantiomorphic hybrids exhibit long-term stability and show bright yellow emission with a photoluminescence quantum yield (PLQY) close to 100%. Due to the successful chirality transfer from the chiral ligands to the inorganic backbone, the enantiomers show intriguing chiroptical properties, such as circular dichroism (CD) and CPL. The CPL dissymmetry factor (g(lum)) is measured to be approximate to 4 x 10(-3). Time-resolved photoluminescence (PL) measurements show long averaged decay lifetime up to 10 mu s. The structural details within the Cu4I4 reveal the chiral nature of these basic building units, which are significantly different than in the achiral case. This discovery provides new structural insights for the design of high performance CPL materials and their applications in light emitting devices.

chirality chiroptics circularly polarized luminescence hybrid copper(I) halides photoluminescence quantum yield

SCI

English

First ; Corresponding

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

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000949377500001

WILEY-V C H VERLAG GMBH

Web of Science

1.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Guangdong, Peoples R China

Chen, Jian,Pan, Xin,Zhang, Xuanyu,et al. One-Dimensional Chiral Copper Iodide Chain-Like Structure Cu4I4(R/S-3-quinuclidinol)(3) with Near-Unity Photoluminescence Quantum Yield and Efficient Circularly Polarized Luminescence[J]. SMALL,2023.

Chen, Jian.,Pan, Xin.,Zhang, Xuanyu.,Sun, Chen.,Chen, Congcong.,...&Mao, Lingling.(2023).One-Dimensional Chiral Copper Iodide Chain-Like Structure Cu4I4(R/S-3-quinuclidinol)(3) with Near-Unity Photoluminescence Quantum Yield and Efficient Circularly Polarized Luminescence.SMALL.

Chen, Jian,et al."One-Dimensional Chiral Copper Iodide Chain-Like Structure Cu4I4(R/S-3-quinuclidinol)(3) with Near-Unity Photoluminescence Quantum Yield and Efficient Circularly Polarized Luminescence".SMALL (2023).