The field of van der Waals (vdWs) integrated systems has gained significant traction with the advent of graphene and other two-dimensional (2D) materials in electronics and optoelectronics. These systems offer unique advantages, such as clean interfaces, no lattice matching requirements, and the flexibility to integrate with any type of material surfaces, providing a vast array of options ad combinations for engineering application-specific systems. The integration of vdWs systems facilitates the creation of new materials with enhanced properties, leading to energy-efficient solutions. The integration of vdWs is seen as a promising pathway to create a universal technology platform to adapt 2D materials to the established silicon technology. Recently, there has been a growing interest in developing vdWs integration techniques and device schemes based on cross-, and multi-dimensional systems, including 2D materials, metallic thin films, semiconductor nanomembranes, and quantum dots with potential applications in electronics and optoelectronics.

Despite the progress made in vdWs systems, much of the research has been concentrated on 2D materials and their heterostructures. The exploration of cross-dimensional systems, which combine materials from different dimensions, presents unique benefits in terms of structural and optoelectronic properties. However, there remains a need for a deeper understanding of charge transport, optoelectrical responses, and scalable fabrication methods to ensure sustainable integration with existing bulk systems. This Research Topic aims to provide a comprehensive platform for exploring the interactions between cross- and multidimensional vdWs systems and their implications in electronics and optoelectronics. The primary objectives include investigating the charge transport models, optoelectronic properties, and large-scale fabrication techniques of these systems. By addressing these areas, this Topic will facilitate the integration of nanomaterials and low-dimensional systems with existing technologies, paving the way for future commercialization. Key questions include how cross-dimensional systems can enhance optoelectronic properties and what fabrication methods are most suitable for large-scale production.

To gather further insights into the integration of cross-dimensional vdWs systems, we welcome articles addressing, but not limited to, the following themes:

- Charge transport models in vdWs systems
- Interactions between cross-dimensional systems
- Large-scale fabrication and integration techniques of vdWs systems
- 2D vdWs heterostructures and devices
- Interfacial physics of cross- and multidimensional systems
- 0D-2D, 2D-2D, 2D-3D interfaces and charge transfer
- Optoelectronic properties of cross-dimensional systems
- VdWs systems for efficient energy transfer

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Frontiers in Nanotechnology

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