Metal chalcogenide/oxide-based quantum dots decorated functional materials for energy-related applications: Synthesis and preservation

Abstract

In this review, we provided a systematic progress which focused on the synthesis of metal chalcogenide/oxide-based QD-decorated functional materials for photoelectrocatalysis and photovoltaic cells application. First, a brief introduction about the surface characteristics of QDs was elaborated. Then, based on the general synthesis mechanism and strategies for QDs, a comprehensive analysis on the present situation for the fabrication of metal chalcogenide/oxide-based QD-decorated functional materials was provided from three new perspectives, namely, in-situ growth of QDs onto pre-fabricated functional materials, post-synthesis assembly of QDs on functional materials, and co-growth of QDs and substrate materials. Moreover, the pros and cons of each strategy were discussed. Particularly, the QD-based heterophase junction structures were described separately due to their special configuration. From the perspective of photoelectric performance, the controllability and importance of QDs loading were emphasized. Further, a comprehensive analysis for the protection of QDs in modified functional materials was conducted from the perspective of passivation. Additionally, based on the synthesis strategy, a systematic classification and analysis of the roles of QDs in the decorated functional materials was provided. Finally, we concluded by providing an insight for future development of QD-based functional materials in photoelectrochemistry.