Over the past few decades, low-dimensional nanomaterials (LDNM) have witnessed their family expanding and have been garnering tremendous interest worldwide. Since LDNM dramatically differ from their bulk counterparts in terms of electronic, optical, mechanical, and magnetic properties, relevant studies have ranged from fundamental nanoscience to functional applications.

According to the specific confinement characteristics of electron wave function, LDNM can be classified into zero-dimensional (0D, e.g., quantum dots, nanoparticles), one-dimensional (1D, e.g., nanotubes, nanowires) and two-dimensional (2D, e.g., nanosheets, nanowalls) types. Strongly depending on shape, scale, morphology, and dimensionality, the ultimate features and performance of LDNM can be different and amendable. Therefore, it is of great significance to obtain LDNM with controlled configurations, discover intrinsic properties, and explore appropriate applications with particular metrics.

Accordingly, this Special Issue aims to present various topics centered on LDNM from 0D to 2D, including theoretical simulation, synthesis and growth, material characterizations, and especially potential applications in the fields of chemical sensing, energy conversion and storage, optoelectronics, and photonics. Both original research and review papers are welcome for the possible publication.

Potential topics include but are not limited to the following:

• Nanotechnologies, theory, simulation, and nanofabrication
• Physics and chemistry studies
• Growth, synthesis methods and material characterizations
• Microscopies and spectroscopies
• Devices for chemical sensing, energy conversion, and storage
• Applications in electronics, plasmonics, photonics, and optoelectronics