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Bi‐directional photodetection with positive and negative photoconductance (PPC/NPC) plays a critical role in building next‐generation artificial neuromorphic systems, visual information processing and optoelectronic logic gates of the future. However, the typical device configuration based on heterostructures with strict working principles restricts the diversity of material selection. In this work,...
Tunable Bidirectional Photoresponses
In article number 2205709, Yulong Liao, He Yu, Jun Wang, and co‐workers report the first observation of a tunable bidirectional photoresponse in hybrid PtSe2−x films based on precisely controllable selenization engineering. The unique photoresponse can be modulated by tuning the component for specific demand, which enables the device to mimic the fundamental functions...
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