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Proceedings Paper

Light-emitting and photovoltaic devices based on quantum well-dots hybrid nanostructures
Author(s): Alexey M. Nadtochiy; Mikhail V. Maximov; Sergey A. Mintairov; Nikolay A. Kalyuzhnyy; Yuri M. Shernyakov; Alexey S. Payusov; Alexey E. Zhukov; Sergei Rouvimov; Artem V. Savelyev
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Paper Abstract

We report on optoelectronic devices based on novel type of active region - quantum well-dots (QWD) hybrid nanostructures. This hybrid type of the active region can be described as a quantum well, which has an ultradense array of narrow-gap In-rich regions with the size of 20-30 nm, which serve as the localization centers of charge carriers. Such QWD structures can be formed spontaneously during the MOVPE (metalorganic vapor phase epitaxy) deposition of InxGa1-xAs (0.3<; x<0.5) on GaAs substrate. Optimal average thickness and composition of InxGa1-xAs to achieve maximal PL intensity and photocurrent in QWD structures are determined. Characteristics of edge-emitting lasers based on 5 QWD layers are described. Advantages of using QWD medium in light-emitting and photovoltaic devices are discussed.

Paper Details

Date Published: 20 February 2017
PDF: 9 pages
Proc. SPIE 10114, Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XIV, 101140Y (20 February 2017); doi: 10.1117/12.2249867
Show Author Affiliations
Alexey M. Nadtochiy, St. Petersburg Academic Univ. (Russian Federation)
Solar Dots Ltd. (Russian Federation)
Mikhail V. Maximov, St. Petersburg Academic Univ. (Russian Federation)
Sergey A. Mintairov, Ioffe Institute (Russian Federation)
St. Petersburg Academic Univ. (Russian Federation)
Nikolay A. Kalyuzhnyy, Ioffe Institute (Russian Federation)
St. Petersburg Academic Univ. (Russian Federation)
Yuri M. Shernyakov, Ioffe Institute (Russian Federation)
St. Petersburg Academic Univ. (Russian Federation)
Alexey S. Payusov, Ioffe Institute (Russian Federation)
St. Petersburg Academic Univ. (Russian Federation)
Alexey E. Zhukov, St. Petersburg Academic Univ. (Russian Federation)
Sergei Rouvimov, Univ. of Notre Dame (United States)
Artem V. Savelyev, St. Petersburg Academic Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10114:
Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XIV
Diana L. Huffaker; Holger Eisele, Editor(s)

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