Application Case | ATP5020P: Empowering Optical Research of 2D Materials and Facilitating Breakthroughs in Multifunctional PdSe Optoelectronic Devices

2026-01-28

In modern integrated optoelectronic devices, achieving multiple functions—such as photodetection, optical waveguiding, and modulation—on a single material platform is a key focus for both scientific research and industry. A significant study recently published in Nature Communications, titled "Multifunctional van der Waals PdSe₂ for light detection, guiding and modulation," utilized the Optosky ATP5020P spectrometer to provide reliable data support for unveiling the broadband optical properties of PdSe₂.

01 Research Background: The Multifunctional Optical Properties of PdSe₂

PdSe₂, a layered van der Waals material with an orthorhombic crystal structure, exhibits three distinct optical behaviors across different wavelength ranges: semiconducting, high-refractive-index dielectric, and quasi-metallic. This makes it an ideal platform for multifunctional optoelectronic integration. To comprehensively characterize its anisotropic optical constants, the research team employed polarization-resolved reflectance spectroscopy, with the ATP5020P fiber optic spectrometer serving as the core spectral acquisition instrument.

02 The Critical Role of ATP5020P in the Research

In this study, researchers assembled a customized polarization-resolved reflectance measurement system. By integrating a microscope, polarizers, and the ATP5020P spectrometer, they achieved precise reflectance measurements of PdSe₂ flakes under different polarization orientations across the 550-900 nm wavelength range.

This data formed the experimental foundation for subsequently extracting the complex refractive index (n + ik) of PdSe₂along different crystal axes.

03 ATP5020P’s Technical Advantages in Practice:

High Sensitivity & Broad Spectral Range: Covers visible to near-infrared wavelengths, meeting multi-dimensional optical characterization needs.
Modular Design: Allows flexible integration with optical components like microscopes and polarizers, suitable for both customized and integrated optical systems.
Polarization Resolution: Enables precise measurement of the optical response of anisotropic materials (like PdSe₂) along different crystal axes.
Micro-spot Measurement: When combined with high-magnification objectives, facilitates localized spectral acquisition from micron-scale samples.

04 Conclusion

Optosky ATP5020P spectrometer, with its high precision, flexible integration capabilities, and broad spectral coverage, has become an indispensable optical measurement tool in modern optoelectronic materials research. In studies of multifunctional van der Waals materials like PdSe₂, it provides a solid data foundation for understanding material properties and advancing device integration. We look forward to continuing our collaboration with research and industry partners, using advanced spectroscopic technology to illuminate the path of innovation in optoelectronic integration.

References

1. Slavich, A., Ermolaev, G., Pak, N. et al. Multifunctional van der Waals PdSe2 for light detection, guiding and modulation. Nat Commun 16, 9201 (2025). //doi.org/10.1038/s41467-025-64247-8

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