中国物理B ›› 2024, Vol. 33 ›› Issue (6): 68101-068101.doi: 10.1088/1674-1056/ad36ba

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Linear dichroism transition and polarization-sensitive photodetector of quasi-one-dimensional palladium bromide

Wan-Li Zhu(朱万里)1,2, Wei-Li Zhen(甄伟立)1,†, Rui Niu(牛瑞)1, Ke-Ke Jiao(焦珂珂)1, Zhi-Lai Yue(岳智来)1, Hui-Jie Hu(胡慧杰)1, Fei Xue(薛飞)3, and Chang-Jin Zhang(张昌锦)1,4,‡   

  1. 1 Anhui Key Laboratory of Low-energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    2 Science Island Branch, Graduate School of University of Science and Technology of China, Hefei 230026, China;
    3 School of Physics, Hefei University of Technology, Hefei 230601, China;
    4 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • 收稿日期:2023-12-18 修回日期:2024-02-28 接受日期:2024-03-22 出版日期:2024-06-18 发布日期:2024-06-18
  • 通讯作者: Wei-Li Zhen, Chang-Jin Zhang E-mail:wlzhen@mail.ustc.edu.cn;zhangcj@hmfl.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2022YFA1403203 and 2021YFA1600201), the National Natural Science Foundation of China (Grant No. 12274414), and the Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures (Contract No. JZHKYPT-2021-08).

Linear dichroism transition and polarization-sensitive photodetector of quasi-one-dimensional palladium bromide

Wan-Li Zhu(朱万里)1,2, Wei-Li Zhen(甄伟立)1,†, Rui Niu(牛瑞)1, Ke-Ke Jiao(焦珂珂)1, Zhi-Lai Yue(岳智来)1, Hui-Jie Hu(胡慧杰)1, Fei Xue(薛飞)3, and Chang-Jin Zhang(张昌锦)1,4,‡   

  1. 1 Anhui Key Laboratory of Low-energy Quantum Materials and Devices, High Magnetic Field Laboratory, HFIPS, Chinese Academy of Sciences, Hefei 230031, China;
    2 Science Island Branch, Graduate School of University of Science and Technology of China, Hefei 230026, China;
    3 School of Physics, Hefei University of Technology, Hefei 230601, China;
    4 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
  • Received:2023-12-18 Revised:2024-02-28 Accepted:2024-03-22 Online:2024-06-18 Published:2024-06-18
  • Contact: Wei-Li Zhen, Chang-Jin Zhang E-mail:wlzhen@mail.ustc.edu.cn;zhangcj@hmfl.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant Nos. 2022YFA1403203 and 2021YFA1600201), the National Natural Science Foundation of China (Grant No. 12274414), and the Basic Research Program of the Chinese Academy of Sciences Based on Major Scientific Infrastructures (Contract No. JZHKYPT-2021-08).

摘要: Perpendicular optical reversal of the linear dichroism transition has promising applications in polarization-sensitive optoelectronic devices. We perform a systematical study on the in-plane optical anisotropy of quasi-one-dimensional PdBr$_{2}$ by using combined measurements of the angle-resolved polarized Raman spectroscopy (ARPRS) and anisotropic optical absorption spectrum. The analyses of ARPRS data validate the anisotropic Raman properties of the PdBr$_{2}$ flake. And anisotropic optical absorption spectrum of PdBr$_{2}$ nanoflake demonstrates distinct optical linear dichroism reversal. Photodetector constructed by PdBr$_{2}$ nanowire exhibits high responsivity of 747A$\cdot$W$^{-1}$ and specific detectivity of 5.8$\times10^{12}$Jones. And the photodetector demonstrates prominent polarization-sensitive photoresponsivity under 405-nm light irradiation with large photocurrent anisotropy ratio of 1.56, which is superior to those of most of previously reported quasi-one-dimensional counterparts. Our study offers fundamental insights into the strong optical anisotropy exhibited by PdBr$_{2}$, establishing it as a promising candidate for miniaturization and integration trends of polarization-related applications.

关键词: linear dichroism reversal, polarization sensitivity, anisotropy, polarized photodetector

Abstract: Perpendicular optical reversal of the linear dichroism transition has promising applications in polarization-sensitive optoelectronic devices. We perform a systematical study on the in-plane optical anisotropy of quasi-one-dimensional PdBr$_{2}$ by using combined measurements of the angle-resolved polarized Raman spectroscopy (ARPRS) and anisotropic optical absorption spectrum. The analyses of ARPRS data validate the anisotropic Raman properties of the PdBr$_{2}$ flake. And anisotropic optical absorption spectrum of PdBr$_{2}$ nanoflake demonstrates distinct optical linear dichroism reversal. Photodetector constructed by PdBr$_{2}$ nanowire exhibits high responsivity of 747A$\cdot$W$^{-1}$ and specific detectivity of 5.8$\times10^{12}$Jones. And the photodetector demonstrates prominent polarization-sensitive photoresponsivity under 405-nm light irradiation with large photocurrent anisotropy ratio of 1.56, which is superior to those of most of previously reported quasi-one-dimensional counterparts. Our study offers fundamental insights into the strong optical anisotropy exhibited by PdBr$_{2}$, establishing it as a promising candidate for miniaturization and integration trends of polarization-related applications.

Key words: linear dichroism reversal, polarization sensitivity, anisotropy, polarized photodetector

中图分类号:  (Other semiconductors)

  • 81.05.Hd
81.07.Gf (Nanowires) 85.30.De (Semiconductor-device characterization, design, and modeling) 85.60.Gz (Photodetectors (including infrared and CCD detectors))