Zhicheng Xie

Recent Advances in Infrared‐to‐Visible Upconversion Photodetectors: From Multi‐Dimensional Innovations to Future Perspectives

ABSTRACT Thin‐film infrared‐to‐visible upconversion photodetectors (UCDs) have emerged as a cost‐effective, pixel‐less paradigm for infrared (IR) visualization. This review first elucidates mainstream upconversion modalities, device configurations, and the physical principles of...