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Recent Advances in Photodiode-Type Organic Photodetectors: From Polymer Design to Applications
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DOI：10.1016/j.progpolymsci.2026.102122.png)
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Abstract
En 中文
Organic photodetectors (OPDs) offer intrinsic advantages over their inorganic counterparts, including mechanical flexibility, lightweight and deformable device architectures compatible with wearable and stretchable electronics, and broad tunability of optoelectronic properties enabled by molecular-level design. These features position OPDs as versatile and complementary photodetection platforms for both broadband and color-selective light sensing. This review presents a focused overview of polymer-based OPDs, with particular emphasis on photodiode-type devices based on p–n heterojunction (HJ) and photomultiplication (PM)-type OPDs, which have experienced especially rapid progress in recent years, achieving substantial improvements in sensitivity, noise characteristics, and response speed. We first summarize the fundamental operating principles and key figures of merit governing both static and dynamic OPD performance. For HJ-type OPDs, recent advances in molecular design strategies enabling visible, near-infrared (NIR), and short-wave infrared (SWIR) photodetection are discussed, with particular attention to polymer modification approaches that realize color-selective absorption and improved device performance. We then review recent developments in high-gain PM-type OPDs, focusing on polymer host design and charge-trapping modulation strategies for PM. Finally, current challenges and future perspectives for next-generation OPDs are discussed, with an outlook toward their integration into advanced optoelectronic systems.
Keywords:
Organic photodetectors
Polymer-based OPDs
p–n heterojunction
Photomultiplication
Color-selective absorption
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26.1
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1.4K
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3.0W
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