期刊
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
卷 102, 期 3, 页码 611-614出版社
SPRINGER
DOI: 10.1007/s00339-010-6162-6
关键词
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资金
- Millimeter-wave Innovation Technology Research Center (MINT), Dongguk University, Republic of Korea
In this paper, we show negative differential resistance (NDR) in CdSe quantum dot/MEH-PPV based nanocomposite multi-layer heterostructures at room temperature. The four-layer structure exhibited a maximum peak-to-valley ratio of current of 1190 at room temperature, while two-layer structures show a value of 4. Two-, three- and four-layer structures are studied. Each device configuration exhibits different kind of negative differential resistance. The possible mechanism is explained on the basis of tunneling phenomena.
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