Bioinspired Organic Photodetectors for Multispectral Vision

Achieving robust high-resolution multispectral imaging in the near-infrared regime is crucial for advanced bioimaging, medical diagnostics, and intelligent sensing. Conventional photodetectors often require rigid, bulky filters and lack the adaptive spectral selectivity needed for miniaturized, flexible, or conformal devices. Inspired by biological vision systems that adapt both to illumination and spectral composition, we present a new class of bias-switchable, dual-mode spectral selective organic photodetector. The devices utilize a back-to-back stacked double bulk heterojunction architecture, enabling electrically switchable, crosstalk-free detection in distinct bands. This architecture facilitates self-aligned imaging, mimics orthogonal adaptation found in nature, and opens new avenues for adaptive multispectral vision in next-generation imaging systems.