Solution-processed two-dimensional materials for next-generation photovoltaics

Abstract

Solution-processed graphene and related two-dimensional materials enable the next-generation photovoltaics.

Defect Engineering Strategies Toward Controlled Functionalization of Solution‐Processed Transition Metal Dichalcogenides

“…In light of such limitations, during the last decade, solution processing (also referred to as liquid-phase exfoliation (LPE)) has become the prime alternative to obtain highconcentration and high-volume TMD inks, thereby offering an efficient and versatile production of 2D structures. [25,26] The different possible approaches can be classified as bottom-up and topdown: in the former, TMDs are synthesized starting from suitable chemical precursors and by binding atoms to each other, whereas in the latter, TMDs are exfoliated from the respective bulk crystals under specific conditions. The top-down approaches (Figure 1) guarantee a higher throughput and the best trade-off among key parameters that can be assessed when evaluating production protocols in 2DM science, such as cost, purity, scalability, yield, and so on.…”

“…[41] The recent advances on deposition techniques of solution-processed TMDs have further promoted their use in the form of colloidal dispersions, coating, and thin films produced by inkjet-printing, spray coating, roll-to-roll, screen printing, spin-coating, drop-casting, etc. [17,25] Finally, due to its scalability and cost-effectiveness, LPE can efficiently provide TMDs in massive quantities, paving the way for their application in several research fields.…”

Two‐Dimensional Cathode Materials for Aqueous Rechargeable Zinc‐Ion Batteries†

“…[ 52 ] The surfactants play an important role in maintaining the stability and the morphology of 2D materials. [ 53 ] However, the residual surfactants on these 2D materials are usually difficult to be removed, which hinders their applications in ZIBs. The bottom‐up methods rely on the chemical reaction of precursors under specific reaction conditions.…”

Spontaneous formation of gold nanoparticles on MoS2 nanosheets and its impact on solution-processed optoelectronic devices

“…Among synthetic protocols, solution routes offer significant advantages through scalability, ambient processability, speedy, and additive manufacturability, and are less demanding compared to traditional techniques ( Bonaccorso et al., 2016 ; Hassan et al., 2020 ; Nicolosi et al., 2013 ; Varrla et al., 2015 ). In this regard, the protocol of liquid-phase exfoliation has enabled the processing of numerous 2D materials ( Bellani et al., 2021 ; Bonaccorso et al., 2016 ; Cao et al., 2016 ; Coleman et al., 2011 ; Ma and Sasaki, 2015 ). Detailed investigations have probed the underlying aspects of solvent suitability, and suggest a predominant role of Hansen solubility parameters and surface tension components to enable stable and concentrated nanosheet dispersions ( Coleman et al., 2011 ; O’Neill et al., 2012 ; Wang et al., 2017 ; Zhou et al., 2011 ).…”