Yiyun Zhang

ORCID: 0009-0006-5842-502X
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About
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Research Areas
  • Plasmonic and Surface Plasmon Research
  • Photonic Crystals and Applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • High-Voltage Power Transmission Systems
  • Urban Heat Island Mitigation
  • Metamaterials and Metasurfaces Applications
  • Photonic and Optical Devices
  • Thermal Radiation and Cooling Technologies
  • Power Systems and Technologies
  • Building Energy and Comfort Optimization
  • Mechanical and Optical Resonators
  • Nonlinear Optical Materials Studies
  • Smart Grid and Power Systems

Zhejiang University
2023-2025

Jinhua Academy of Agricultural Sciences
2024-2025

Zhejiang University of Science and Technology
2024

Zhejiang University-University of Edinburgh Institute
2024

Jilin Electric Power Research Institute (China)
2012

Abstract Two-dimensional single crystal metals, in which the behavior of highly confined optical modes is intertwined with quantum phenomena, are sought after for next-generation technologies. Here, we report large area (>10 4 μm 2 ), two-dimensional gold flakes (2DGFs) thicknesses down to a nanometer level, employing an atomic-level precision chemical etching approach. The decrease thickness such scales leads quantization electronic states, endowing 2DGFs quantum-confinement-augmented...

10.1038/s41467-024-47133-7 article EN cc-by Nature Communications 2024-04-02

Abstract In the realm of photonic integrated circuit design, on‐chip absorbers are imperative for preventing signal degradation caused by unintended stray photons, which induce crosstalk and operational errors. An ideal optical absorber is expected to have a superior absorption capability across wide range frequencies while maintaining minimal footprint. However, widely employed thin‐film suffer from limited due inherent refractive index mismatches short light‐matter interaction lengths....

10.1002/lpor.202401839 article EN Laser & Photonics Review 2025-01-24

The very fast transient overvoltage (VFTO) generated during switching of disconnector in HGIS or GIS may affect the safe and stable operation electric equipment, especially with large-scale application electronic equipment intelligent substation, impact will be more serious. test system method external VFTO TEV on is comprehensive introduced this paper. It texted 500kV substation that first completely substation. With compared results, waveform characters frequency components whole process...

10.1109/imccc.2012.89 article EN 2012-12-01

Two-dimensional single-crystal metals are highly sought after for next-generation technologies. Here, we report large-area (>10^4 {\mu}m2), two-dimensional gold with thicknesses down to a single-nanometer level, employing an atomic-level-precision chemical etching approach. The ultrathin thickness and quality endow unique properties including significantly quantum-confinement-augmented optical nonlinearity, low sheet resistance, high transparency excellent mechanical flexibility. By...

10.48550/arxiv.2311.07858 preprint EN cc-by arXiv (Cornell University) 2023-01-01

Passive cooling is regarded as the desired method for interior temperature regulation due to its advantage of energy consumption reduction. An ideal passive-cooling window expected exhibit a high emissivity in mid-infrared (MIR, 8–13 μm) spectral range and low transmittance near-infrared (NIR, 780–2100 nm) reducing heat flow, while presenting visible (VIS, 400–780 daylighting. However, material structures that meet these requirements often come with demands precision manufacturing elevated...

10.1021/acsami.4c14473 article EN ACS Applied Materials & Interfaces 2024-10-10
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