Understanding the structural and dynamic factors that govern the formation of covalent and non-covalent organic 2D crystalline materials is key to controlling their quality, including defect density and lateral dimensions. Gaining such insight enables the rational tuning of their physicochemical properties.
In this contribution, we showcase how scanning probe microscopy—particularly scanning tunneling microscopy (STM) and atomic force microscopy (AFM)—can be leveraged to investigate the structure and evolution of substrate-supported metal–organic frameworks (sMOFs) and covalent organic frameworks (sCOFs) at the liquid–solid interface.
We outline approaches for tracking and steering the growth of sMOFs and sCOFs across diverse scenarios: from achiral to chiral, from single layers to multilayer architectures, and from monocomponent to multicomponent systems. Beyond offering high-resolution visualization, scanning probe microscopy can also play an active role in directing on-surface growth processes, with very high spatial resolution.
Precisely tailoring the macroscopic morphology of covalent organic frameworks (COFs) fundamentally drives their physicochemical properties. However, the robust and highly directional nature of covalent bonds makes such control at the single-crystal level a formidable challenge. Resolving this bottleneck, we establish a...
Shijiao Fan, Chenyang Yan, Hanzhen Liu et al.· Journal of the American Chem...· 1 citation
The on-surface synthesis of atomically precise carbon nanomaterials has emerged as a powerful strategy to overcome the limitations of solution-based chemistry, enabling the fabrication of low-dimensional polymers and networks with unprecedented structural control. In particular, the development of single-layer two-dime...
Ana Barragán, Elena Pérez Elvira, Diego J. Vicent et al.· ECS Meeting Abstracts· 0 citations
ABSTRACT Metal–organic frameworks (MOFs) provide powerful templates for constructing porous inorganic materials, yet the nanoscale thermal conversion pathways remain unclear. We reveal the mechanistic origins of structure–property emergence during thermal transformation of Cu‐BTC (HKUST‐1 MOF) into nanoporous copper ox...
The multilevel assembly of conjugated polymers critically determines their electronic performance. However, establishing a direct correlation from molecular-level interactions to macroscopic morphology and charge transport properties remains challenging. In this work, advanced characterization techniques were employe...
Nai-Fu Liu, Li Ding, Xiao-Yan Zhang et al.· Macromolecules· 0 citations
Silver nanocubes have emerged as a model system for understanding how surface chemistry governs shape-controlled synthesis and shape preservation, in addition to their widespread use in a range of applications. This review discusses our recent progress in directly probing the surface of Ag nanocubes, with emphasis on s...
Qijia Huang, Younan Xia· Journal of Materials Researc...· 0 citations
The advancement of stretchable organic photovoltaics is hindered by a fundamental trade-off between high optoelectronic performance and mechanical durability, in particular, a challenge rooted in the complex microstructure of conjugated polymers and their blends. This review addresses a critical literature gap on the m...
Meng-Yuan Gao, Jun-Jiang Wu, Yanhou Geng et al.· Advances in Materials· 0 citations
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