Controllable-assembled functional monolayers by the Langmuir–Blodgett technique for optoelectronic applications

Abstract

Preparation of high-quality functional films with nanoscale thickness and tunable layers is highly preferable and indispensable for optoelectronic applications, and has drawn enormous attention from research communities. Constructing dense self-assembled monolayer films is an ideal route to realize highly ordered functional films of optoelectronic devices. Moreover, the self-assembly technique can be used to construct elaborated micro/nanoarchitecture for multifunctional and integrated devices by further incorporating patterning methods. A review bridging the controllable-assembled-monolayer technique and functional optoelectronic devices is highly desirable, which would boost the device's performance and even enable emerging applications like ultrahigh-resolution devices. Here we overview the primary mechanism, material systems, transfer methods, and device applications of the controllable-assembled-monolayers. We highlight the high-quality quasi-lattice monolayer films and corresponding potential optoelectronic applications. A systematic review of the controllable-assembled-monolayer technique will help further our understanding of its potential in constructing functional films and optoelectronic devices.