Nanomaterials are materials, with at least one of their dimensions in the nanoscale (i.e., in a length range from 1 nm to 100 nm). They have remarkable or unconventional properties when compared with bulk materials.
These materials are currently used in many applications; however, new potential uses are being investigated. In this sense, there is a large interest in their use in medicine, electronic devices, production and storage of energy, composite materials, etc. The production of nanomaterials is addressed through physical and/or chemical methods; however, most of these methods exhibit low reproducibility or a low production rate or make use of toxic chemicals. In order to avoid most of these drawbacks, laser-based synthesis of nanomaterials has emerged as an alternative to overcome these limitations. This family of methods uses a laser beam to produce different nanomaterials (e.g., nanoparticles, nanowires or 2D materials) using diverse approaches. Techniques such as those based on laser ablation, laser vaporization, pulsed laser deposition (PLD), laser–chemical vapor deposition (LCVD), etc. are being explored, at present, to fabricate these nanoscale materials with a controlled size and shape.
In the Laser4Mat laboratory we research on the development of new laser-based processes for the production of nanomaterials and in their application to produce new nanomaterials (nanoparticles, nanofibres and nanosheets), especially for biomedical applications.