A review on advances in photoelectrochemical (PEC-type) photodetectors: A trending thrust research area

In the realm of photodetector technology, self-powered photoelectrochemical photodetectors, or PEC-PDs, have emerged as a compelling area of research, captivating attention due to their inherent advantages. Central to their advancement are functional nanostructured materials, pivotal in enhancing the transport and separation of photoexcited electron-hole pairs, thereby bolstering device efficiency. This review delves into the diverse landscape of nanostructures employed in PEC-PDs, examining their performance through the dimensions of 1-D, 2-D, and 3-D nanostructures. Emphasizing analytical performance, the study critically evaluates the morphological effects of these materials. Additionally, a groundbreaking exploration is undertaken, spotlighting a novel category of PEC detectors grounded in innovative 2D materials. Concluding, the review not only outlines future trajectories and existing challenges in this domain but also provides a unique perspective. By offering a comprehensive overview, this review elucidates the prevailing research trends in PEC PDs, shedding light on the most pioneering and potentially transformative avenues in this dynamic field.