Defect Engineering in Two Common Types of Dielectric Materials for Electromagnetic Absorption Applications
Nanyang Technological University · Nanjing University of Aeronautics and Astronautics · +4 more institutions
Abstract
Abstract Dielectric materials are greatly desired for electromagnetic absorption applications. Lots of research shows that conduction loss and polarization are two of the most important factors determining complex permittivity. However, the detailed dissipation mechanisms for the improved microwave absorption performance are often based on semiempirical rules, lacking practical data relationships between conduction loss/polarization and dielectric behaviors. Here, a strategy of introducing point defects is used to understand such underlying relationships, where polarizability and conductivity are adjustable by manipulating oxygen deficiency or heteroatoms. Based on first principles calculations and the applied…
Citation impact
- FWCI
- 26.86
- Percentile
- 100%
- References
- 38
Authors
9Topics & keywords
- Materials science
- Dielectric
- Permittivity
- Microwave
- Polarizability
- Polarization (electrochemistry)
- Dielectric loss
- Semiconductor
Funding
- NNNational Natural Science Foundation of ChinaAwards: 51602154, 11622218, 11575085, 11472131
- NUNanjing University of Aeronautics and AstronauticsAward: BCXJ 18‐07
- CSChina Scholarship CouncilAward: 201806830013
- NSNatural Science Foundation of Jiangsu ProvinceAward: BK20160037
- STSix Talent Peaks Project in Jiangsu ProvinceAward: XCL‐035