Splitting of valance subbands in the wurtzite c-plane InGaN/GaN quantum well structure

Song, Yu; Chen, Dong; Wang, Lai; Li, Hongtao; Xi, Guangyi; Jiang, Yang
October 2008
Applied Physics Letters;10/20/2008, Vol. 93 Issue 16, p161910
Academic Journal
Peak splitting in the low temperature photoluminescence (PL) spectra of c-plane InGaN/GaN single quantum well samples was observed. For the k∥c configuration, the splitting peaks show a variation in relative intensity as the excitation power is tuned. For the k⊥c configuration, a strong polarization dependence of the luminescence distribution and intensity was spotted. The PL spectra was analyzed with a calculation model based on the k·p effective mass theory, and the splitting peaks were identified as free-exciton transitions between the conduction subband C1 and two groups of valence subbands, the {HH1,LH1} and the {HH2,LH2,CH1}, respectively.


Related Articles

  • Polarization in the Quasielastic Scattering of 1-GeV/c Protons on Light Nuclei. Miklukho, O. V.; Aleshin, N. P.; Belostotski, S. L.; Grebenyuk, O. G.; Fedorov, O. Ya.; Izotov, A. A.; Kisselev, A. Yu.; Naryshkin, Yu. G.; Nelyubin, V. V.; Prokofiev, A. N.; Prokofiev, D. A.; Shcheglov, Yu. A.; Shvedchikov, A. V.; Vikhrov, V. V.; Zhgun, A. A.; Zhdanov, A. A. // Physics of Atomic Nuclei;May2000, Vol. 63 Issue 5, p824 

    Polarization measurements in the A(p, 2p)B reactions on [sup 6]Li, [sup 7]Li, and [sup 28]Si nuclei at a proton-beam energy of 1 GeV were performed in a kinematically complete experiment. By using a two-arm magnetic spectrometer, two secondary protons were recorded in coincidence at asymmetric...

  • Rapid degradation of CdSe/ZnS colloidal quantum dots exposed to gamma irradiation. Withers, Nathan J.; Sankar, Krishnaprasad; Akins, Brian A.; Memon, Tosifa A.; Gu, Tingyi; Gu, Jiangjiang; Smolyakov, Gennady A.; Greenberg, Melisa R.; Boyle, Timothy J.; Osinski, Marek // Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p173101 

    Effects of 137Cs gamma irradiation on photoluminescent properties of CdSe/ZnS colloidal quantum dots are reported. Optical degradation is evaluated by tracking the dependence of photoluminescence intensity on irradiation dose. CdSe/ZnS quantum dots show poor radiation hardness, and severely...

  • Biexciton emission from sol-gel ZnMgO nanopowders. Chia, C. H.; Lai, Y. J.; Hsu, W. L.; Han, T. C.; Chiou, J. W.; Hu, Y. M.; Lin, Y. C.; Fan, W. C.; Chou, W. C. // Applied Physics Letters;5/10/2010, Vol. 96 Issue 19, p191902 

    We studied the power-dependent photoluminescence of Zn1-xMgxO nanopowders grown by sol-gel method, at temperature T=100 K. At moderate optical pumping intensity, a nonlinear emission band due to the radiative recombination of free biexcitons was detected. We found that the free biexciton binding...

  • Radiation intensity fluctuations of an exciton Bose condensate in GaAs/Al0.33Ga0.67As double quantum wells. Kuz'min, R. V.; Krivolapchuk, V. V.; Moskalenko, E. S.; Mezdrogina, M. M. // Physics of the Solid State;Jun2010, Vol. 52 Issue 6, p1260 

    Fluctuations in time of the intensity of indirect exciton photoluminescence in GaAs/Al0.33Ga0.67As double quantum wells have been studied. An analysis of the behavior of the intensity fluctuations under variation in external control parameters, such as the temperature and the voltage applied...

  • A Search for the Effects of Nuclear Matter in Backward Pion�Deuteron Quasielastic Scattering by [sup 6]Li. Abramov, B. M.; Borodin, Yu. A.; Bulychjov, S. A.; Dukhovskoi, I. A.; Krutenkova, A. P.; Kulikov, V. V.; Matsyuk, M. A.; Radkevich, I. A.; Turdakina, E. N.; Khanov, A. I. // JETP Letters;11/10/2001, Vol. 74 Issue 9, p449 

    Results of a kinematically complete experiment on backward p[sup �]d quasielastic scattering by [sup 6]Li are presented. The experiment was carried out at the ITEP 3-m magnetic spectrometer with pion beams of momenta 0.72, 0.88, and 1.28GeV/c. The Fermi-motion parameters of a quasideuteron...

  • Self-diffusion of potassium on ultra-thin epitaxial potassium layers. Fuhrmann, D.; Hulpke, E. // Journal of Chemical Physics;2/22/1997, Vol. 106 Issue 8, p3407 

    Focuses on the self-diffusion of potassium layers supported by a nickel substrate using quasielastic helium atom scattering. Activation energy for surface diffusion; Suggestion of a jump diffusion mechanism from the way in which the energy broadening depends on the transfer of parallel momentum.

  • Theory of quasielastic light scattering of a ternary solution consisting of two homopolymers with... Wang, C.H. // Journal of Chemical Physics;9/1/1997, Vol. 107 Issue 9, p3675 

    Explains the theory of quasielastic light scattering of a ternary solution consisting of two homopolymers with arbitrary optical, hydrodynamic and thermodynamic properties. Dynamic structure factors in concentrated solution; Solutions with one polymer isorefractive with the solvent; Bimodal...

  • Liquidlike structures in dilute suspensions of charged liposomes. Haro-Pérez, C.; Quesada-Pérez, M.; Callejas-Fernández, J.; Casals, E.; Estelrich, J.; Hidalgo-Álvarez, R. // Journal of Chemical Physics;3/15/2003, Vol. 118 Issue 11, p5167 

    Electrostatically stabilized aqueous dispersions of both slightly and highly charged liposomes have been analyzed by quasielastic light scattering. The obtained static structure factor S(q) revealed a liquidlike ordering due to long range electrostatic interactions. The fit of S(q) assuming a...

  • Connection between quasielastic Raman scattering and free volume in ploymeric glasses and... Novikov, V.N.; Sokolov, A.P. // Journal of Chemical Physics;7/22/1997, Vol. 107 Issue 4, p1057 

    Measures quasielastic light scattering in some polymers. Description of the spectra using a model of the fast picosecond relaxation processes responsible for the quasielastic light scattering; Raman scattering results; Proportionality of the intensity of the fast relaxation process to the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics