Hybrid Germanium Bromide Perovskites with Tunable Second Harmonic Generation

Liu，Yang1; Gong，Ya Ping2; Geng，Shining3; Feng，Mei Ling4; Manidaki，Despoina5; Deng，Zeyu6; Stoumpos，Constantinos C.5; Canepa，Pieremanuele6,7; Xiao，Zewen3; Zhang，Wei Xiong2; Mao，Lingling1

2022

10.1002/anie.202208875

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   Impact Factor & Quartile

1433-7851

1521-3773

Ge-based hybrid perovskite materials have demonstrated great potential for second harmonic generation (SHG) due to the geometry and lone-pair induced non-centrosymmetric structures. Here, we report a new family of hybrid 3D Ge-based bromide perovskites AGeBr, A=CHNH (MA), CH(NH) (FA), Cs and FAGeSnBr, crystallizing in polar space groups. These compounds exhibit tunable SHG responses, where MAGeBr shows the strongest SHG intensity (5×potassium dihydrogen phosphate, KDP). Structural and theoretical analysis indicate the high SHG efficiency is attributed to the displacement of Ge along [111] direction and the relatively strong interactions between lone pair electrons of Ge and polar MA cations along the c-axis. This work provides new structural insights for designing and fine-tuning the SHG properties in hybrid metal halide materials.

Halide Perovskites Non-Centrosymmetric Structure Non-Linear Optics Second Harmonic Generation

SCI

English

NI Journal Papers

First ; Corresponding

SUSTech start-up grant[Y01216150] ; Singapore Ministry of Education Academic Fund Tier 1[R-284-000-186-133]

Chemistry

Chemistry, Multidisciplinary

WOS:000858306700001

WILEY-V C H VERLAG GMBH

CHEMISTRY

2-s2.0-85138836910

Scopus

1.Department of Chemistry,SUSTech Energy Institute for Carbon Neutrality,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.MOE Key Laboratory of Bioinorganic and Synthetic Chemistry,School of Chemistry,Sun Yat-Sen University,Guangzhou,Guangdong,510275,China
3.Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,Hubei,430074,China
4.State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian,350002,China
5.Department of Materials Science and Technology,University of Crete,Heraklion,70013,Greece
6.Department of Materials Science and Engineering,National University of Singapore,Singapore,117575,Singapore
7.Department of Chemical and Biomolecular Engineering,National University of Singapore,Singapore,117585,Singapore

Liu，Yang,Gong，Ya Ping,Geng，Shining,et al. Hybrid Germanium Bromide Perovskites with Tunable Second Harmonic Generation[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2022.

Liu，Yang.,Gong，Ya Ping.,Geng，Shining.,Feng，Mei Ling.,Manidaki，Despoina.,...&Mao，Lingling.(2022).Hybrid Germanium Bromide Perovskites with Tunable Second Harmonic Generation.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION.

Liu，Yang,et al."Hybrid Germanium Bromide Perovskites with Tunable Second Harmonic Generation".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022).