Ti₃C₂T_x MXene for organic/perovskite optoelectronic devices

Abstract

MXenes are emerging two-dimensional (2D) nanomaterials composed of transition metal carbides and/or nitrides and possess unique layered structures with abundant surface functional groups, which enable them with excellent and tunable properties. MXenes films can be solution-processed in polar solvents and are very suitable for optoelectronic device applications. Especially, Ti₃C₂T_x MXene with the clear advantages of facile synthesis, flexible surface controlling, easily tunable work function, high optical transmittance and excellent conductivity shows great potential for applications in organic/perovskite optoelectronic devices. Therefore, this review briefly introduces the mainstream synthesis methods, optical and electrical properties of MXenes, and comprehensively summarizes the versatile applications of Ti₃C₂T_x MXene in different functional layers (electrode, interface layer and active layer) of organic/perovskite optoelectronic devices including solar cells and light-emitting diodes. Finally, the current application characteristics and the future possibilities of MXenes in organic/perovskite optoelectronic devices are concluded and discussed.

Keywords

Ti₃C₂T_x MXene / organic/perovskite solar cells / organic/perovskite light-emitting diodes / electrode / interface layer / active layer

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