Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Analysis of C-V and Frequency Characteristics of the ZnO nano-powder Varistors

ZnO 나노파우더 바리스터의 C-V 및 주파수 특성 분석

  • Wang, Min-Sung (Wonkwang Univ. School of Electrical Electronic and Information Engineering) ;
  • Jeong, Jong-Yub (Wonkwang Univ. School of Electrical Electronic and Information Engineering) ;
  • Song, Min-Jong (Kwangju Health Coll) ;
  • Park, Choon-Bae (Wonkwang Univ. School of Electrical Electronic and Information Engineering)
  • 왕민성 (원광대학교 전기전자 및 정보공학부) ;
  • 정종엽 (원광대학교 전기전자 및 정보공학부) ;
  • 송민종 (광주보건대학) ;
  • 박춘배 (원광대학교 전기전자 및 정보공학부)
  • Published : 2005.11.10
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Abstract

In this study, our varistors based on M.Matsuoke's composition were fabricated with ZnO nano-powder whose sizes were 50nm and 100nm. Electrical properties of ZnO nano-powder varistors were obtained by capacitance-voltage and frequency-real impedance. nano-powder varistors are indicated the change of the interface defects density $N_t$ at the grain boundaries and the donor concentration $N_d$ in the ZnO grains. Frequency analysis was accomplished to understand the equivalent circuit.

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