The low-cost, efficient photoelectrosensitive electrodes as an alternative to expensive and complex rigid systems are yet in demand for advanced photoresponsive technology. Here, the light-induced efficiency of electrochemically exfoliated TaS₂ nanosheets for hydrogen generation catalysis and photodetectors was demonstrated. Mutual twisting of the exfoliated 2H-TaS₂ flakes leads to the redistribution of charge density induced by interlayer interaction of the individual nanosheets. External light irradiation on the TaS₂ surface influences its conductivity making the material feasible for photoelectrocatalysis and photodetection. The TaS₂-based photoelectrocatalyst demonstrates high hydrogen evolution reaction (HER) activity with the onset overpotential below 575 mV vs. reversible hydrogen electrode (RHE). The TaS₂-integrated photodetector in the acidic medium represents its broadband response with the highest photoresponsivity (0.62 mA W⁻¹) toward 420 nm light illumination. This finding will pave the way to a new realization of exfoliated twist-angle stacked TaS₂ for photo-induced electrochemistry and sensing.

作为昂贵且复杂的刚性系统的替代品，低成本、高效的光电敏感电极仍然需要先进的光响应技术。在这里，证明了电化学剥离的 TaS ₂纳米片在产氢催化和光电探测器中的光诱导效率。剥离的 2H-TaS ₂薄片的相互扭曲导致由单个纳米片的层间相互作用引起的电荷密度的重新分布。TaS ₂表面上的外部光照射会影响其导电性，使该材料可用于光电催化和光电检测。TaS ₂基于的光电催化剂表现出高析氢反应 (HER) 活性，与可逆氢电极 (RHE) 相比，起始过电位低于 575 mV。酸性介质中的 TaS ₂集成光电探测器代表其宽带响应，对 420 nm 光照射具有最高光响应性 (0.62 mA W ^-1 )。这一发现将为新实现用于光诱导电化学和传感的剥离扭曲角堆叠 TaS ₂铺平道路。