2D Bi₂Te₃ Thin-Film Spectral-Spatial Sensor

Synchronous spectral-spatial sensing

Captures and fuses spectral and spatial information at the hardware level, eliminating band-by-band scanning and post-processing to directly output fused features.

Zhang, Na · Ouyang, Decai · Liu, Wei · Li, Yuan · Zhai, Tianyou

Advanced Materials 2026

Specifications

Enhancement ratio

{'zh': '20', 'en': '20'}

Recognition accuracy

{'zh': '91.12', 'en': '91.12'} %

Advantages

Multiwavelength enhancement

Synaptic behavior is enhanced under multi-wavelength stimuli, with a maximum enhancement ratio over 20, improving feature discriminability and recognition efficiency.

High recognition accuracy

Leveraging synergistic enhancement, achieves 91.12% accuracy on Indian Pines for topography recognition, surpassing conventional methods.

Applications

• Hyperspectral imaging：Replaces band-by-band scanning, synchronously acquires spectral-spatial data and reduces redundancy.
• Remote sensing：Real-time fusion of spectral and spatial features on airborne or spaceborne platforms improves recognition efficiency.
• Machine vision：Front-end sensor directly outputs fused features, simplifying vision system processing.