Current Status and Future of Organic–Inorganic Hybrid Perovskites for Photoelectrocatalysis Devices

Given the importance of positive impacts on the environment, it is necessary to evaluate the progress made thus far with water-splitting or electrocatalysis devices. Thus, this review aims to provide a broad picture of artificially developed hybrid materials, including organic (macro)molecules and perovskites, that can function in a synergistic manner and catalyze water-splitting events. This review highlights efficient hybrid organic–inorganic molecular systems integrated within an electrocatalysis device for the purpose of extracting energy from water, by splitting it in a cheaper way, with less energy input to initiate the pathway. The following review will highlight a large number of organic (macro)molecules, such as oligomers, polymers, and metal–organic frameworks, that have been introduced as tandem layers within a water-splitting device. The organic tandem layer is supposed to provide extra stability and enhance the photocatalytic activity. The review also discusses the drawbacks of existing devices based on hybrid organic–inorganic molecular systems to show what improvements are needed and what could be the future of these eco-friendly devices in a sustainable society on Earth and beyond.