The properties of organic photocatalysts play a crucial role in their effectiveness for HER. The absorption of visible light, due to their narrow bandgaps, allows organic materials to utilize a broader spectrum of sunlight, increasing their potential efficiency. Additionally, low-cost synthesis methods, along with the ability to modify their structure at the molecular level, enable fine-tuning of their electronic properties for enhanced photocatalytic activity . The charge carrier dynamics, such as efficient charge separation and transfer, are optimized through the careful design of organic materials, allowing for better hydrogen production rates . Furthermore, heteroatom doping, such as introducing nitrogen or sulfur into the organic structure, has been shown to significantly improve the electronic properties and the stability of the photocatalysts, enabling long-term hydrogen evolution without significant degradation .