Electrical and optoelectronic anisotropy and surface electron accumulation in ReS<sub>2</sub> nanostructures

Bangolla, Hemanth Kumar; Yusuf Fakhri, Muhammad; Lin, Ching-Hsuan; Cheng, Cheng-Maw; Lu, Yi-Hung; Fu, Tsu-Yi; Selvarasu, Pushpa; Ulaganathan, Rajesh Kumar; Sankar, Raman; Chen, Ruei-San

doi:10.1039/d3nr04830f

Nanoscale

2023

DOI: 10.1039/d3nr04830f

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Electrical and optoelectronic anisotropy and surface electron accumulation in ReS₂ nanostructures

Hemanth Kumar Bangolla,

Muhammad Yusuf Fakhri,

Ching-Hsuan Lin

et al.

Abstract: Two interesting electronic transport properties including in-plane anisotropy and nonhomogeneous carrier distribution were observed in ReS2 nanoflakes. The electrical conductivity defined by the current parallel to the b-axis (∥b) is...

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High Performance Balanced Linear Polarization Photodetector Based on 2D ReS₂

Hu,

He,

Yan

et al. 2024

Laser & Photonics Reviews

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Conventional research on linear polarization photodetector for 2D materials has focused on the search for different anisotropic materials, combinations between materials, introducing plasmonic structures, and patterning 2D materials to improve performance. However, these methods provide limited improvement in polarization sensitivity. Here, a balanced photodetector structure is proposed that does not require an additional process and relies only on the presence of anisotropy in the material itself to substantially improve the polarization sensitivity. The balanced photodetector consists of two ReS2 photodetectors, where the single ReS2 photodetector exhibits excellent performance at 650 nm illumination, including a responsivity and detectivity of 0.28 A W−1 and 4.22 × 109 Jones. Benefiting from the anisotropy of ReS2, the single photodetector achieves excellent polarization sensitivity of 2.79 at 650 nm. The balanced photodetector system achieves an excellent performance of ≈20 dB linear polarization extinction ratio and 0.003° Hz−1/2 noise equivalent light polarization difference at 100 kHz. These performances can also be further optimized by adjusting the gate voltage. The results provide a basis for further development of high‐performance polarization photodetector for 2D materials.

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High Performance Balanced Linear Polarization Photodetector Based on 2D ReS₂

Hu,

He,

Yan

et al. 2024

Laser & Photonics Reviews

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Electrical and optoelectronic anisotropy and surface electron accumulation in ReS₂ nanostructures

Abstract: Two interesting electronic transport properties including in-plane anisotropy and nonhomogeneous carrier distribution were observed in ReS2 nanoflakes. The electrical conductivity defined by the current parallel to the b-axis (∥b) is...

Cited by 1 publication

References 70 publications

High Performance Balanced Linear Polarization Photodetector Based on 2D ReS₂

High Performance Balanced Linear Polarization Photodetector Based on 2D ReS₂

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Electrical and optoelectronic anisotropy and surface electron accumulation in ReS2 nanostructures

Abstract: Two interesting electronic transport properties including in-plane anisotropy and nonhomogeneous carrier distribution were observed in ReS2 nanoflakes. The electrical conductivity defined by the current parallel to the b-axis (∥b) is...

Cited by 1 publication

References 70 publications

High Performance Balanced Linear Polarization Photodetector Based on 2D ReS2

High Performance Balanced Linear Polarization Photodetector Based on 2D ReS2

Contact Info

Product

Resources

About

Electrical and optoelectronic anisotropy and surface electron accumulation in ReS₂ nanostructures

High Performance Balanced Linear Polarization Photodetector Based on 2D ReS₂

High Performance Balanced Linear Polarization Photodetector Based on 2D ReS₂