Advanced III-nitride and CZTS-based green energy materials were widely applied in LEDs and solar cells fields because optical/electronic devices have undergone large amounts of significant research. Their roles have been well established in our science and society. However, growth of high-quality films is very difficult in terms of lattice mismatch, thermal mismatch, non- stoichiometric, and stress/strain etc.

With the unique structures and novel properties of nanomaterials, their applications cover a wide range of key components or products, such as light-emitting diodes (LED), solar cell devices, nanocomposites, optical materials, functional materials, and other related advanced nanomaterials. In addition, due to the progress of advanced process technology, future electronic and optoelectronic devices will be based not only on two-dimensional epi-wafers, but will use lateral patterning so that more sophisticated three-dimensional objects (quantum dots, wires) can be grown. This is a big challenge as the growth conditions are very different in this case, and the characterization of such structures is much more difficult.

This Special Issue will cover the significance of advanced materials for various growth technologies and material properties. This Issue aims at identifying the current status and anticipating the future directions of this emerging field via a fusion of civil engineering, environmental science, chemistry, materials science, and anti-ecotoxic technologies. Original research and review articles are welcome.

Potential topics include but are not limited to the following:

• Synthesis methods of nanomaterials for green energy applications
• Novel growth technique and characterization of III-nitride materials for optoelectronic applications
• Growth and applications of oxide materials for optoelectronic applications
• Nanoscale characterization of nanomaterials
• Nanophotonics