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학술지 Frequency-Controllable Room-Temperature Electrical Oscillation in Two-Terminal Device Based on VO2 Thin Film
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저자
이용욱, 김봉준, 최성열, 김현탁
발행일
200907
출처
Journal of the Korean Physical Society, v.55 no.1, pp.134-139
ISSN
0374-4884
출판사
한국물리학회 (KPS)
DOI
https://dx.doi.org/10.3938/jkps.55.134
협약과제
09MB2300, 전기적 점프(Current Jump)를 이용한 신소자 기술, 김현탁
초록
For simple generation of an electrical oscillation without inductive components, electrical materials with a negative differential resistance, including perovskite and organic insulating materials, have been extensively studied. However, the implementation employing those materials was realizable only at very low temperature, and the oscillation frequency was at most tens of kHz and even fixed as ~40 Hz in the case of organic materials. Here we show a frequency-controllable roomtemperature electrical oscillation, whose frequency can be tuned and increased up to >1 MHz by simply adjusting one of the circuit components (voltage source, resistor, and capacitor), in vanadium dioxide thin films.
KSP 제안 키워드
Electrical materials, Electrical oscillation, Low temperature(LT), Negative differential resistance(NDR), Organic insulating materials, Organic materials, Oscillation Frequency, Room-temperature, Two-terminal device, Vanadium dioxide thin film, Voltage source