Cd<sub>5</sub>As<sub>2</sub>Br<sub>4</sub>: A Ternary Arsenide with Nonlinear Optical Property
In this research, a new ternary arsenide, Cd5As2Br4, with a nonlinear optical (NLO) property has been synthesized. Cd5As2Br4 possesses a noncentrosymmetric structure with a space group belonging to the orthorhombic crystal system, specifically Pna21. The structure of Cd5As2Br4 is formed by the interconnection of three one-dimensional structures, resulting in a three-dimensional structure. The diffuse reflectance spectrum reveals that Cd5As2Br4 has a direct band gap of 1.91 eV. NLO performance tests indicate that at a particle size range of 20–50 μm, the second harmonic generation (SHG) intensity of Cd5As2Br4 is 0.7 times that of AgGaS2 (AGS), and it exhibits nonphase-matching behavior at 2090 nm. Additionally, at a particle size range of 125–150 μm, the laser-induced damage threshold (LIDT) of Cd5As2Br4 is equal to that of AGS. Finally, theoretical calculations elucidate that Cd5As2Br4 possesses a calculated maximum SHG coefficient d15 of −11.66 pm/V.
Authors
- Pifu Gong (ORCID: https://orcid.org/0000-0002-4656-1554)
- Wenhao Xing (ORCID: https://orcid.org/0000-0003-1258-419X)
- Jiyong Yao
- Qiang Liu (ORCID: https://orcid.org/0000-0002-1269-7779)
- Chunxiao Li (ORCID: https://orcid.org/0000-0002-9959-5029)
- Bohui Xu (ORCID: https://orcid.org/0009-0009-8135-0099)
- Guili Wang (ORCID: https://orcid.org/0000-0002-2306-4176)
Institutions
- Chinese Academy of Sciences (CN)
- Crystal Research (United States) (US)
- Technical Institute of Physics and Chemistry (CN)
- Henan Institute of Science and Technology (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Crystal Growth & Design
- Published
- 2025-02-12
- DOI
- https://doi.org/10.1021/acs.cgd.5c00059
- Primary Topic
- Crystal Structures and Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China