- Nanotechnology 6
- Artificial Intelligence 4
- Characterization and Evaluation of Materials 4
- Condensed Matter Physics 4
- Electrochemistry 4
- Energy Storage 4
- Optical and Electronic Materials 4
- Physical Chemistry 4
- Renewable and Green Energy 4
- Inorganic Chemistry 3
- Molecular Medicine 3
- Nanochemistry 3
- Nanoscale Science and Technology 3
- Nanotechnology and Microengineering 3
- Optics, Lasers, Photonics, Optical Devices 3
- Algorithm Analysis and Problem Complexity 2
- Computational Intelligence 2
- Computer Communication Networks 2
- Computers and Education 2
- Information Storage and Retrieval 2