中国物理B ›› 2024, Vol. 33 ›› Issue (6): 68101-068101.doi: 10.1088/1674-1056/ad36ba
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 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
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 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
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.
中图分类号: (Other semiconductors)
- 81.05.Hd