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Significant Progress in the Development of Miniature Spectrometer IC Devices Using SDJU Developed InSe Crystals

05/06/2026

Recently, Professor Jin Min’s Advanced Functional Materials Team (AFMT), in collaboration with Professor Han Lin’s research team at Shandong University, has made significant research progress in the development of integrated circuit (IC) devices for miniature spectrometers based on InSe crystals independently developed by SDJU. The relevant findings have been published in the computer science journal Infoscience.

Optoelectronic detectors are widely used in advanced imaging, in-sensor memory, artificial synapses, and integrated sensing-memory-computing systems, playing a vital role in communications, automation, aerospace, industrial applications, and defense technologies. However, conventional spectrometers rely on bulky optical components, resulting in large size and high cost, which limits their application in compact and lightweight systems. Therefore, miniaturizing spectrometers represents a crucial step toward expanding their use in various portable applications.

In recent years, advanced mathematical algorithms have been widely applied to spectral reconstruction. The integration of novel materials with advanced algorithms is expected to enable the development of high-performance miniature spectrometers. The InSe crystals developed by AFMT are two-dimensional layered materials featuring dangling-bond-free surfaces, layer-dependent bandgaps, atomically sharp interfaces, strong light–matter interactions, and electrically tunable photo responses. These unique properties demonstrate great potential for integration with mathematical algorithms to fabricate high-performance, ultra-compact computational spectrometers.

In recent years, SDJU has actively aligned its efforts with national strategies and regional development priorities by promoting organized S&T innovation in key areas, including critical common technologies for strategic industries and frontier technologies driving emerging industries. Our university has continuously strengthened the dynamic alignment between academic disciplines and industrial demands. This research highlights the deep interdisciplinary integration of electronic information materials and IC technologies. These two fields mutually empower each other, representing not only a natural convergence of cutting-edge disciplines but also reflecting SDJU’s distinctive approach of strengthening development through industry integration and promoting collaborative innovation among materials, devices, and systems.