<P>Various GaxIn1-xP strain barriers were evaluated for their ability to compensate for the strain of lattice mismatched InGaAs/GaAs MQWs structures. A GaxIn1-xP (chi = 0.53) tensile strain barrier, which was inserted between the n-confinement a...
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https://www.riss.kr/link?id=A107429058
Lee, H.J. ; Jang, I.K. ; An, W.C. ; Kwac, L.K. ; Kim, H.G. ; Kwak, J.S.
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2017
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KCI등재,SCIE,SCOPUS
학술저널
1582-1588(7쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>Various GaxIn1-xP strain barriers were evaluated for their ability to compensate for the strain of lattice mismatched InGaAs/GaAs MQWs structures. A GaxIn1-xP (chi = 0.53) tensile strain barrier, which was inserted between the n-confinement a...
<P>Various GaxIn1-xP strain barriers were evaluated for their ability to compensate for the strain of lattice mismatched InGaAs/GaAs MQWs structures. A GaxIn1-xP (chi = 0.53) tensile strain barrier, which was inserted between the n-confinement and InGaAs/GaAs multi-quantum well (MQW) active region, was effective in reducing the compressive strain caused by In0.07GaAs in multiple quantum wells (MQWs). Importantly, a remarkably enhanced PL intensity was obtained by retuning the strain of In0.07GaAs QWs based on a Ga0.53InP tensile strain barrier. A fabricated IR-LED chip, having retuned In0.08GaAs/GaAs MQWs with a Ga0.53InP tensile strain barrier, yielded double the light output power of the IR-LED chip without a Ga0.53InP strain barrier. This suggests that the use of a Ga0.53InP tensile strain barrier is essential for compensating for the compressive strain of lattice-mismatched InGaAs/GaAs MQWs with a 940 nm emitting wavelength, followed by the improved output power of the IR-LED chips. (C) 2017 Elsevier B.V. All rights reserved.</P>
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