Authors
Yuke Yang, Di Xue, Feng Ding, Yao Yin, Jie Lu, Yuran Xiao, Zi Wang, Lifeng Chi, Lizhen Huang
Published in
Nanoscale. Jul 27, 2026. Epub Jul 27, 2026.
Abstract
Phototransistors capable of both photodetection and photomemory functions are highly desirable for overcoming the latency and power consumption bottlenecks inherent in traditional von Neumann architectures. However, integrating photodetection and photomemory functions into a single broadband device presents a challenge due to the inherent discrepancy in their photoresponse kinetics, where the former demands a fast response while the latter requires a long retention time. Herein, we construct an organic-inorganic hybrid heterojunction phototransistor based on InGaO and F16CuPc, which exhibits a broadband photoresponse across the UV to near-infrared region (365-740 nm) and, notably, demonstrates a distinct wavelength-dependent dual-mode photoresponse behavior. Under short-wavelength excitation (365-420 nm), the device manifests a persistent photoconductivity (PPC) effect, successfully emulating neuromorphic synaptic behaviors. In contrast, under long-wavelength excitation (520-740 nm), the device switches to a volatile photoswitching mode characterized by fast recovery. By modulating the light wavelength, seamless switching between nonvolatile photomemory and volatile photoswitching functions within a single broadband phototransistor is achieved in this work, offering a new pathway for the development of multispectral neuromorphic vision systems and intelligent optoelectronic logic systems.
PMID:
42504578
Bibliographic data and abstract were imported from PubMed on 27 Jul 2026.
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