Research shows improved green light detection performance in photodetectors using subphthalocyanine derivatives, indicating their potential for advanced applications.
In this article, two subphthalocyanines (SubPcs) derivatives are synthesized and characterized. By photophysical and electrochemical characterisation, the two materials exhibit good green light detection and charge transporting properties. Solution-processed organic photodetectors with a structure of indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/SubPc:poly(9-vinylcarbazole) (PVK)/C60/LiF/Al were prepared. Under 520 nm illumination, the optimal device achieved promising performance metrics, including a specific detectivity (D*) of 1.65 × 1012 Jones and an external quantum efficiency (EQE) of up to 28.34%. This work demonstrates the potential of structurally engineered SubPcs for high-performance monochromatic green light detection.
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Tian et al. (2026) studied this question.
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