caa a22 4500 445370815 CHVBK 20180317142946.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s00340-011-4511-6 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4511-6 Two-dimensional heterostructures based on ZnO [Elektronische Daten] [A. Lotin, O. Novodvorsky, L. Parshina, E. Khaydukov, D. Zuev, O. Khramova, V. Panchenko] The multiple quantum wells (MQW) Mg0.27Zn0.73O/ZnO have been grown by the pulsed laser deposition method with different well widths L w . The interface roughness of quantum wells was inherited from the bottom one and did not exceed 1 nm. We observed the quantum confinement effect showing up in the blue shift of the exciton peak in the low temperature (8K) photoluminescence and absorption spectra at well width reduction. The exciton binding energy of the two-dimensional structures Mg0.27Zn0.73O/ZnO was two times higher in comparison with the bulk ZnO. It has been established that Einstein's characteristic temperature Θ E sharp increase with reduction of well width L w up to L w =2.6nm. It has been revealed that the discontinuity ratio of conduction and valence bands in the heterostructure Mg0.27Zn0.73O/ZnO is 0.65/0.35. We demonstrated the abrupt increase in quantum efficiency at a reduction of the well width that allowed us to observe the optically excited stimulated emission in ZnO quantum wells with the excitation threshold of ∼210kW/cm2. Springer-Verlag, 2011 Lotin A. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut Novodvorsky O. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut Parshina L. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut Khaydukov E. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut Zuev D. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut Khramova O. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut Panchenko V. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut Applied Physics B Springer-Verlag 105/3(2011-11-01), 565-572 0946-2171 105:3<565 2011 105 340 https://doi.org/10.1007/s00340-011-4511-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4511-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lotin A. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut NATIONALLICENCE 700 1- Novodvorsky O. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut NATIONALLICENCE 700 1- Parshina L. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut NATIONALLICENCE 700 1- Khaydukov E. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut NATIONALLICENCE 700 1- Zuev D. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut NATIONALLICENCE 700 1- Khramova O. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut NATIONALLICENCE 700 1- Panchenko V. Institute on Laser and Information Technologies, Russian Academy of Sciences (ILIT RAS), 1 Svyatoozerskaya St., 140700, Shatura, Moscow Region, Russia aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 105/3(2011-11-01), 565-572 0946-2171 105:3<565 2011 105 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer