Nanoresonance Cavity and Localized Surface Plasmon Resonance Enhanced Broad-Spectral Photodetector for Versatile Applications DOI

Shanshui Lian,

Zhongyu Liu, Xiaolan Fu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

To overcome the limitations inherent in traditional silicon (Si)-based photodetectors, particularly low light absorption and complex carrier dynamics, this study proposes fabricates situ three-dimensional (3D) graphene/Si Schottky junctions integrated with WS2 quantum dots (QDs). The introduction of QDs enables heterojunction to realize "double-enhanced absorption" by synergistic effect natural nanoresonant cavity surface plasmon resonance (LSPR) QDs. Photodetectors constructed from QDs/3D-graphene/Si demonstrate a broadband, self-powered response 440 1850 nm, maintaining stable operation at 1550 nm for 4 months. They exhibit high-frequency modulation (2 kHz), responsivity up 83 A/W, specific detectivity 5.6 × 1011 Jones, rapid response/recovery times 139 μs/145 μs multifunctionality image acquisition, information encryption, logic operations. This research lays foundation high-performance, photodetectors light-controlled circuits communications imaging.

Language: Английский

Enhanced light-driven ion transport via graphene oxide composite membranes for ionic power harvesting DOI
Yue Leon Guo, Xinyi Du, Junchao Liu

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132017 - 132017

Published: Feb. 1, 2025

Language: Английский

Citations

1
Nanoresonance Cavity and Localized Surface Plasmon Resonance Enhanced Broad-Spectral Photodetector for Versatile Applications DOI

Shanshui Lian,

Zhongyu Liu, Xiaolan Fu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

To overcome the limitations inherent in traditional silicon (Si)-based photodetectors, particularly low light absorption and complex carrier dynamics, this study proposes fabricates situ three-dimensional (3D) graphene/Si Schottky junctions integrated with WS2 quantum dots (QDs). The introduction of QDs enables heterojunction to realize "double-enhanced absorption" by synergistic effect natural nanoresonant cavity surface plasmon resonance (LSPR) QDs. Photodetectors constructed from QDs/3D-graphene/Si demonstrate a broadband, self-powered response 440 1850 nm, maintaining stable operation at 1550 nm for 4 months. They exhibit high-frequency modulation (2 kHz), responsivity up 83 A/W, specific detectivity 5.6 × 1011 Jones, rapid response/recovery times 139 μs/145 μs multifunctionality image acquisition, information encryption, logic operations. This research lays foundation high-performance, photodetectors light-controlled circuits communications imaging.

Language: Английский

Citations

0