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2012•Electronics LettersRequires access

Fabrication of In 0.53 Ga 0.47 AsN 0.01 /AlAs 0.56 Sb 0.44 resonant tunnelling diodes grown on InP by molecular beam epitaxy

Yuichi Kawamura, K. Mitsuyoshi

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Abstract

An In0.53Ga0.47AsN0.01/AlAs0.56Sb0.44 resonant tunnelling diode (RTD) has been fabricated by molecular beam epitaxy on InP substrates for the first time. A clear negative differential resistance (NDR) characteristic was observed at room temperature, where the peak/valley (P/V) ratio is as high as 19.6. This result indicates that the use of an InGaAsN layer in the RTD structure is very effective on obtaining an NDR characteristic with high P/V ratio.

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What this paper is about

An In0.53Ga0.47AsN0.01/AlAs0.56Sb0.44 resonant tunnelling diode (RTD) has been fabricated by molecular beam epitaxy on InP substrates for the first time. A clear negative differential resistance (NDR) characteristic was observed at room temperature, where the peak/valley (P/V) ratio is as high as 19.6. This result indicates that the use of an InGaAsN layer in the RTD structure is very effective on obtaining an NDR characteristic with high P/V ratio.

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Available abstract

An In0.53Ga0.47AsN0.01/AlAs0.56Sb0.44 resonant tunnelling diode (RTD) has been fabricated by molecular beam epitaxy on InP substrates for the first time. A clear negative differential resistance (NDR) characteristic was observed at room temperature, where the peak/valley (P/V) ratio is as high as 19.6. This result indicates that the use of an InGaAsN layer in the RTD structure is very effective on obtaining an NDR characteristic with high P/V ratio.

Key concepts: Molecular beam epitaxy, Quantum tunnelling, Resonant-tunneling diode, Optoelectronics, Diode, Fabrication, Materials science, Tunnel diode

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