Dual-mode 0D/2D spatial asymmetry optoelectronic device enabled by in situ microzone femtosecond laser deposition

Zehua Li; Guisheng Zou; Jinpeng Huo; Jin Peng; Tianming Sun; Yu Xiao; Jiali Huo; Bin Feng; Lei Liu

doi:10.1038/s41377-026-02195-8

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Dual-mode 0D/2D spatial asymmetry optoelectronic device enabled by in situ microzone femtosecond laser deposition

Original Articles

- Dual-mode 0D/2D spatial asymmetry optoelectronic device enabled by in situ microzone femtosecond laser deposition
- Light: Science & Applications Vol. 15, Issue 5, Pages: 1690-1702(2026)
- Affiliations：
  
  1.State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
  2.Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Beijing 100084, China
  3.School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Center of Hydrogen Science, Shanghai Key Lab of Electrical Insulation & Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, China
  4.Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore
- Author bio：
  
  Jinpeng Huo (huojp@tsinghua.edu.cn)
  Lei Liu (liulei@tsinghua.edu.cn)
- Funds：
- DOI：10.1038/s41377-026-02195-8
  CLC：
- Received：23 July 2025，
  
  Revised：2025-12-20，
  
  Accepted：13 January 2026，
  
  Online First：06 March 2026，
  
  Published：31 May 2026
- Accepted：
Scan QR Code
Li, Z. H. et al. Dual-mode 0D/2D spatial asymmetry optoelectronic device enabled by in situ microzone femtosecond laser deposition. Light: Science & Applications, 15, 1690-1702 (2026).
DOI：

Li, Z. H. et al. Dual-mode 0D/2D spatial asymmetry optoelectronic device enabled by in situ microzone femtosecond laser deposition. Light: Science & Applications, 15, 1690-1702 (2026). DOI： 10.1038/s41377-026-02195-8.

摘要

Abstract

To develop artificial intelligence and humanoid robotics

it is crucial to fabricate advanced vision systems with high efficiency and versatility. A key challenge is the functional integration of high-speed photodetectors (PD) and neuromorphic vision sensors (NVS) into a single device

as current studies suffer from complex architectures or fabrication processes. Hence

we propose a universal Microzone Femtosecond Laser Deposition (M-FLD) technique that enables the localized

in situ deposition of zero-dimensional (0D) black phosphorus (BP) nanoparticles onto a two-dimensional (2D) MoS

channel by ablating a micro-scale solid-state target. By M-FLD and h-BN nanomask

we fabricated a spatial asymmetric 0D/2D heterostructure for highly integrated dual-mode optoelectronic device. By changing the direction of

the device can be converted from PD to NVS. Under the PD mode

the device can sense high-frequency optical signals up to 3030 Hz. Under the NVS mode

the device’s optical energy consumption per activity is only 191.2 pJ. Based on the sensing and memory capabilities

the device is simulated for MNIST handwritten digit recognition

achieving an accuracy of up to 96.20%. This work provides a flexible and powerful platform for fabricating complex heterostructures

paving the way for highly integrated and reconfigurable neuromorphic vision systems.

关键词

Keywords

references

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