As a promising and important carbon source, utilization of carbon dioxide (CO₂) can effectively solve the energy crisis caused by fossil resource consumption and the environmental problems arising from the emission of CO₂.

Recent progress about transitional metal sulfide–MoS₂ heterostructure composites are reviewed based on the view point of interface engineering.

For the first time, a new lead-free double perovskite Cs₂NaBiI₆ material was synthesized and applied to the perovskite solar cells.