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<p>The von Neumann architecture faces significant limitations,including low transmission efficiency and high energy consumption, whenhandling large-scale data and unstructured problems. Benefiting from theinherent merits of optical signals including high bandwidth, near-zeroJoule heating, fast transmission speed, and immunity to electromagneticinterference, photonics provides a powerful pathway for high-speed neuromorphiccomputing. Together with the mechanical flexibility and largeareamanufacturability of organic semiconductors, organic phototransistor(OPT)-based photonic synapses have therefore attracted extensive attentionin recent years. This review provides a comprehensive overview of recentadvances in OPT-based photonic synapses, covering operational principles,active materials, advances in bidirectional photoresponse process, as wellas cutting-edge applications. Finally, the current challenges and opportunitiesin this field are highlighted. Distinct from previous reviews, this review emphasizes an in-depth exploration of bidirectional photoresponsemechanisms, a systematic dissection of material–structure–function correlations enabling integrated sensing-memory technology, and emerging.</p> Graphical abstract

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Organic Phototransistor Photonic Synapses for Artificial Vision

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月12日

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  • Feng Ding,
  • Di Xue,
  • Lifeng Chi,
  • Lizhen Huang

摘要

The von Neumann architecture faces significant limitations,including low transmission efficiency and high energy consumption, whenhandling large-scale data and unstructured problems. Benefiting from theinherent merits of optical signals including high bandwidth, near-zeroJoule heating, fast transmission speed, and immunity to electromagneticinterference, photonics provides a powerful pathway for high-speed neuromorphiccomputing. Together with the mechanical flexibility and largeareamanufacturability of organic semiconductors, organic phototransistor(OPT)-based photonic synapses have therefore attracted extensive attentionin recent years. This review provides a comprehensive overview of recentadvances in OPT-based photonic synapses, covering operational principles,active materials, advances in bidirectional photoresponse process, as wellas cutting-edge applications. Finally, the current challenges and opportunitiesin this field are highlighted. Distinct from previous reviews, this review emphasizes an in-depth exploration of bidirectional photoresponsemechanisms, a systematic dissection of material–structure–function correlations enabling integrated sensing-memory technology, and emerging.

Graphical abstract