- As-Te-Si-Ge 유리질 반도체의 전기전도에 관한 연구
- ㆍ 저자명
- 박창엽,왕진석,정홍배,Park. Chang-Yeub,Wang. Jin-Seok,Jeong. Hong-Bae
- ㆍ 간행물명
- 電子工學會誌
- ㆍ 권/호정보
- 1975년|12권 2호|pp.18-23 (6 pages)
- ㆍ 발행정보
- 대한전자공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
As-Te.Si-Ge 유리질 반도체의 직류 펀도도는 실온에서 3x10-7Ω-1cm-1∼1.5x10-8Ω-1cm-1이었고 각 시료의 온도 인화에 따른 전도특성은 상전이 온도(Tg) 이하에서 o=ooexp(-△E/kT)로 표시할 수 있었다. 또한 실온에서 각 시료의 교류 전도도의 주파수 의존도는 거의 같았으며 직류 전도도에 비해 상당치 높게 나타나서 o(w)=oo+Awn으로 표시할 수 있었다. 200KHz 경우에 교류 펀도도는 295。K∼473。K에서 온도에 무관하고 200Hz 경우에는 433。K에서 부터 심하게 증가하였다. 각 시fy는 기억스위칭 현상은 없었고 문지받스위칭 현상만 관찰할 수 있었다. The dc conductivity, ac conductivity and switching effect of As·Te-Si·Ge have beon investigated. The dc conductivity ranged from 3x10-7Ω-1cm-1∼1.5x10-8Ω-1cm-1 at room temperature and was found to be expressed by o=ooexp(-△E/kT) below the phase transition temperature Tg. The ac conductivity was much higher than dc conductivity and this result is consistent to experimental formula o(w)=oo+Awn. In the temperature range of 298。K∼147。K, the ac conductivity was independent of temperature at 200KHs. At lower frequencies the ac conductivity increased strong1y with temperature. Also, it has been found that all samples showed a threshold switching, but not a memory switching.
The dc conductivity, ac conductivity and switching effect of As.Te-Si.Ge have beon investigated. The dc conductivity ranged from $3{ imes}10^{-7}{Omega}^{-1}cm^{-1}$ to $1.5{ imes}10^{-8}{Omega}^{-1}cm^{-1}$ at room temperature and was found to be expressed by ${sigma}$ = ${sigma}_0$exp(-${Delta}$E/kT) below the phase transition temperature Tg. The ac conductivity was much higher than dc conductivity and this result is consistent to experimental formula ${sigma}$(w)=${sigma}_0+Aw^n$. In the temperature range of 298$^{circ}K$ ~ $473^{circ}K$ the ac conductivity was independent of temperature at 200KHs. At lower frequencies the ac conductivity increased strong1y with temperature. Also, it has been found that all samples showed a threshold switching, but not a memory switching.