Hybrid Double Perovskite Derived Halides Based on Bi and Alkali Metals (K, Rb): Diverse Structures, Tunable Optical Properties and Second Harmonic Generation Responses

Zhou，Jiaqian1; Xie，Peiran1; Wang，Chao2; Bian，Tieyuan3; Chen，Jian1; Liu，Yang1; Guo，Zhu1; Chen，Congcong1; Pan，Xin1; Luo，Min2; Yin，Jun3; Mao，Lingling1

2023-08-28

10.1002/anie.202307646

Angewandte Chemie - International Edition   Impact Factor & Quartile

1433-7851

1521-3773

Double perovskites (DP) have attracted extensive attention due to their rich structures and wide application prospects in the field of optoelectronics. Here, we report 15 new Bi-based double perovskite derived halides with the general formula of ABBiX (A=organic cationic ligand, B=K or Rb, X=Br or I). These materials are synthesized using organic ligands to coordinate with metal ions with a sp oxygen, and diverse structure types have been obtained with distinct dimensionalities and connectivity modes. The optical band gaps of these phases can be tuned by changing the halide, the organic ligand and the alkali metal, varying from 2.0 to 2.9 eV. The bromide phases exhibit increasing photoluminescence (PL) intensity with decreasing temperature, while the PL intensity of iodide phases changes nonmonotonically with temperature. Because the majority of these phases are non-centrosymmetric, second harmonic generation (SHG) responses are also measured for selected non-centrosymmetric materials, showing different particle-size-dependent trends. Our findings give rise to a series of new structural types to the DP family, and provide a powerful synthetic handle for symmetry breaking.

Double Perovskite Electronic Structure Halides Photoluminescence Second Harmonic Generation

SCI

English

NI Journal Papers

First ; Corresponding

National Natural Science Foundation of China[22275077];

Chemistry

Chemistry, Multidisciplinary

WOS:001031268600001

WILEY-V C H VERLAG GMBH

CHEMISTRY

2-s2.0-85165256920

Scopus

1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Key Laboratory of Optoelectronic Materials Chemistry and Physics,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian,350002,China
3.Department of Applied Physics,The Hong Kong Polytechnic University,Hung Hom, Kowloon,999077,Hong Kong

Zhou，Jiaqian,Xie，Peiran,Wang，Chao,et al. Hybrid Double Perovskite Derived Halides Based on Bi and Alkali Metals (K, Rb): Diverse Structures, Tunable Optical Properties and Second Harmonic Generation Responses[J]. Angewandte Chemie - International Edition,2023,62(35).

Zhou，Jiaqian.,Xie，Peiran.,Wang，Chao.,Bian，Tieyuan.,Chen，Jian.,...&Mao，Lingling.(2023).Hybrid Double Perovskite Derived Halides Based on Bi and Alkali Metals (K, Rb): Diverse Structures, Tunable Optical Properties and Second Harmonic Generation Responses.Angewandte Chemie - International Edition,62(35).

Zhou，Jiaqian,et al."Hybrid Double Perovskite Derived Halides Based on Bi and Alkali Metals (K, Rb): Diverse Structures, Tunable Optical Properties and Second Harmonic Generation Responses".Angewandte Chemie - International Edition 62.35(2023).