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Title: Compositionally Graded Multilayer Ceramic Capacitors

Journal Article · · Scientific Reports
 [1];  [2];  [3]; ORCiD logo [4];  [2]; ORCiD logo [4]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Center for Energy Harvesting Materials and System (CEHMS) and Bio-Inspired Materials and Devices Lab. (BMDL); Korea Inst. of Science and Technology (KIST), Seoul (Korea, Republic of). Center for Electronic Materials
  2. Michigan Technological Univ., Houghton, MI (United States). Dept. of Materials Science and Engineering
  3. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Center for Energy Harvesting Materials and System (CEHMS) and Bio-Inspired Materials and Devices Lab. (BMDL)
  4. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Center for Energy Harvesting Materials and System (CEHMS), Bio-Inspired Materials and Devices Lab. (BMDL) and Inst. for Critical Technology and Applied Science (ICTAS)

Multilayer ceramic capacitors (MLCC) are widely used in consumer electronics. In this paper, we provide a transformative method for achieving high dielectric response and tunability over a wide temperature range through design of compositionally graded multilayer (CGML) architecture. Compositionally graded MLCCs were found to exhibit enhanced dielectric tunability (70%) along with small dielectric losses (<2.5%) over the required temperature ranges specified in the standard industrial classifications. The compositional grading resulted in generation of internal bias field which enhanced the tunability due to increased nonlinearity. The electric field tunability of MLCCs provides an important avenue for design of miniature filters and power converters.

Research Organization:
Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Defense Advanced Research Projects Agency (DARPA); National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); AVX Corporation, Fountain Inn, SC (United States)
Grant/Contract Number:
FG02-06ER46290; N00014-16-1-3043
OSTI ID:
1430122
Journal Information:
Scientific Reports, Vol. 7, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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A novel multilayer composite structured thermoelectric module with high output power journal January 2020

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