This review focuses on the recent research efforts devoted to Ti₃C₂ MXene nanostructures with respect to their synthesis methods, fundamental properties, theoretical description and optoelectronic applications.

An air-stable and deep-ultraviolet-sensitive photodetector was fabricated using a solution-processed ternary copper halide Cs₃Cu₂I₅ thin film as the light absorber.

For the first time, Cs ₄ MnBi ₂ Cl ₁₂ single crystals were employed for photocatalytic degradation of organic pollutants. Joint experiment–theory characterizations reveal the good stability, high recovery and utilization rates of Cs ₄ MnBi ₂ Cl ₁₂ .

Zero-dimensional Cs ₃ InX ₆ QDs with broadband blue emission were synthesized at room-temperature. A white LED was further fabricated by using Cs ₃ InX ₆ QDs powder as down-conversion phosphor, demonstrating a remarkable working stability.