Chiral perovskite-CdSe/ZnS QDs composites with high circularly polarized luminescence performance achieved through additive-solvent engineering

Zhu，Hongmei1; Wang，Qingqian1,2; Chen，Wei3,4; Sun，Kun3; Zhong，Huaying3; Ye，Taikang1; Wang，Zhaojin1; Zhang，Wenda1; Müller-Buschbaum，Peter3,5; Sun，Xiao Wei1; Wu，Dan6; Wang，Kai1

2024-06-21

10.1063/5.0200692

Journal of Chemical Physics   影响因子和分区

0021-9606

1089-7690

Chiral perovskite materials are being extensively studied as one of the most promising candidates for circularly polarized luminescence (CPL)-related applications. Balancing chirality and photoluminescence (PL) properties is of great importance for enhancing the value of the dissymmetry factor (g), and a higher g value indicates better CPL. Chiral perovskite/quantum dot (QD) composites emerge as an effective strategy for overcoming the dilemma that achieving strong chirality and PL in chiral perovskite while at the same time achieving high g in this composite is very crucial. Here, we choose diphenyl sulfoxide (DPSO) as an additive in the precursor solution of chiral perovskite to regulate the lattice distortion. How structural variation affects the chiral optoelectronic properties of the chiral perovskite has been further investigated. We find that chiral perovskite/CdSe-ZnS QD composites with strong CPL have been achieved, and the calculated maximum |g| of the composites increased over one order of magnitude after solvent-additive modulation (1.55 × 10 for R-DMF/QDs, 1.58 × 10 for R-NMP-DPSO/QDs, −2.63 × 10 for S-DMF/QDs, and −2.65 × 10 for S-NMP-DPSO/QDs), even at room temperature. Our findings suggest that solvent-additive modulation can effectively regulate the lattice distortion of chiral perovskite, enhancing the value of g for chiral perovskite/CdSe-ZnS QD composites.

SCI ; EI

英语

第一 ; 通讯

CHEMISTRY

2-s2.0-85196362961

Scopus

1.Institute of Nanoscience and Applications,Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,Xueyuan Blvd. 1088,518055,China
2.Institute of Physics,Henan Academy of Sciences,Zhengzhou,Mingli Road,266-38,China
3.Technical University of Munich,TUM School of Natural Sciences,Department of Physics,Chair for Functional Materials,Garching,James-Franck-Str. 1,85748,Germany
4.Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology,Center for Advanced Material Diagnostic Technology,College of Engineering Physics,Shenzhen Technology University,Shenzhen,518118,China
5.Heinz Maier-Leibnitz Zentrum (MLZ),Technical University of Munich,Garching,Lichtenbergstr. 1,85748,Germany
6.College of New Materials and New Energies,Shenzhen Technology University (SZTU),Shenzhen,Lantian Road 3002, Pingshan,518055,China

Zhu，Hongmei,Wang，Qingqian,Chen，Wei,et al. Chiral perovskite-CdSe/ZnS QDs composites with high circularly polarized luminescence performance achieved through additive-solvent engineering[J]. Journal of Chemical Physics,2024,160(23).

Zhu，Hongmei.,Wang，Qingqian.,Chen，Wei.,Sun，Kun.,Zhong，Huaying.,...&Wang，Kai.(2024).Chiral perovskite-CdSe/ZnS QDs composites with high circularly polarized luminescence performance achieved through additive-solvent engineering.Journal of Chemical Physics,160(23).

Zhu，Hongmei,et al."Chiral perovskite-CdSe/ZnS QDs composites with high circularly polarized luminescence performance achieved through additive-solvent engineering".Journal of Chemical Physics 160.23(2024).