The As flux effect on InAs quantum dots formed by gas source molecular beam epitaxy on lnP substrates, oriented following the (311)B crystallographic direction has been studied. Atomic force microscopy images show that the quantum dot (QD) density dramatically increases and quantum dot sizes decrease, when decreasing the As pressure. Moreover, the size dispersion is narrowed. Photoluminescence measurements on the high QD density samples is shifted to higher energy, toward the telecommunication important 1.55 mu m emission.
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Univ Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USA
Jung, Daehwan
Ironside, Daniel J.
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Univ Texas Austin, Elect & Comp Engn, Austin, TX 78705 USAUniv Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USA
Ironside, Daniel J.
Bank, Seth R.
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Univ Texas Austin, Elect & Comp Engn, Austin, TX 78705 USAUniv Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USA
Bank, Seth R.
Gossard, Arthur C.
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Univ Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USA
Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USA
Gossard, Arthur C.
Bowers, John E.
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Univ Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USA
Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Inst Energy Efficiency, Santa Barbara, CA 93106 USA
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Tohoku Univ, Inst Mat Res, Yao Lab, Aoba Ku, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, Yao Lab, Aoba Ku, Sendai, Miyagi 9808577, Japan
Koo, BH
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Hanada, T
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Makino, H
Chang, JH
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Tohoku Univ, Inst Mat Res, Yao Lab, Aoba Ku, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, Yao Lab, Aoba Ku, Sendai, Miyagi 9808577, Japan
Chang, JH
Yao, T
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Tohoku Univ, Inst Mat Res, Yao Lab, Aoba Ku, Sendai, Miyagi 9808577, JapanTohoku Univ, Inst Mat Res, Yao Lab, Aoba Ku, Sendai, Miyagi 9808577, Japan