Highly Sensitive Polarization Photodetection Using a Pseudo-One Dimensional Nb((1-x))TixS3 Alloy

Yang, Shengxue1; Wu, Minghui2; Shen, Wanfu3; Huang, Li2; Tongay, Sefaattin4; Wu, Kedi4; Wei, Bin5; Qin, Ying4; Wang, Zhongchang5; Jiang, Chengbao1; Hu, Chunguang3

2019-01-23

10.1021/acsami.8b19050

ACS Applied Materials & Interfaces   影响因子和分区

1944-8244

1944-8252

Low-symmetry layered two-dimensional (2D) materials with strong in-plane optical anisotropy can potentially be applied for polarization photodetection. This is especially true for those 2D materials with a direct band gap, which can efficiently absorb light with specific axial polarization. However, discovering such new anisotropic 2D materials with a direct band structure is still extremely challenging. Here, we fabricate a photodetector using a pseudo-one-dimensional (pseudo-1D) Nb((1-x))TixS3 alloy device and demonstrate that it is highly sensitive to the polarized light because of the strong in-plane optical anisotropy and direct band gap of the alloy by combining angle-resolved polarization Raman spectroscopy, azimuth-dependent reflectance difference microscopy, polarization-dependent absorption spectroscopy, and hybrid functional theory calculations. As a consequence, the polarization photodetector of the Nb((1-x))TixS3 alloy shows a large photocurrent anisotropic ratio and a high photoresponse. The choice of a low-symmetry layered pseudo-1D Nb((1-x))TixS3 alloy in polarization photodetection might open up new functionalities for novel optoelectronic device applications.

Nb((1-x))TixS3 ternary alloy low-symmetry structure pseudo-one-dimensional materials in-plane optical anisotropy polarization-sensitive photodetector

SCI ; EI

英语

其他

NSF[DMR-1552220]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000457067300089

AMER CHEMICAL SOC

20190306392269

Absorption spectroscopy ; Energy gap ; Optical anisotropy ; Optoelectronic devices ; Photodetectors ; Photons ; Semiconductor quantum wells ; Ternary alloys

Semiconductor Devices and Integrated Circuits:714.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Atomic and Molecular Physics:931.3

Web of Science

1.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518005, Peoples R China
3.Tianjin Univ, State Key Lab Precis Measuring Technol & Instrume, Weijin Rd, CN-300072 Tianjin, Peoples R China
4.Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA
5.Int Iberian Nanotechnol Lab INL, Dept Quantum & Energy Mat, Ave Mestre Jose Veiga S-N, P-4715330 Braga, Portugal

Yang, Shengxue,Wu, Minghui,Shen, Wanfu,et al. Highly Sensitive Polarization Photodetection Using a Pseudo-One Dimensional Nb((1-x))TixS3 Alloy[J]. ACS Applied Materials & Interfaces,2019,11(3):3342-3350.

Yang, Shengxue.,Wu, Minghui.,Shen, Wanfu.,Huang, Li.,Tongay, Sefaattin.,...&Hu, Chunguang.(2019).Highly Sensitive Polarization Photodetection Using a Pseudo-One Dimensional Nb((1-x))TixS3 Alloy.ACS Applied Materials & Interfaces,11(3),3342-3350.

Yang, Shengxue,et al."Highly Sensitive Polarization Photodetection Using a Pseudo-One Dimensional Nb((1-x))TixS3 Alloy".ACS Applied Materials & Interfaces 11.3(2019):3342-3350.