CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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A theoretical investigation of the band alignment of type-I direct band gap dilute nitride phosphide alloy of GaNxAsyP1-x-y/GaP quantum wells on GaP substrates |
Ö L Ünsal, B Gönül, M Temiz |
Department of Engineering Physics, University of Gaziantep, 27310 Gaziantep, Turkey |
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Abstract The GaP-based dilute nitride direct band gap material Ga(NAsP) is gaining importance due to the monolithic integration of laser diodes on Si microprocessors. The major advantage of this newly proposed laser material system is the small lattice mismatch between GaP and Si. However, the large threshold current density of these promising laser diodes on Si substrates shows that the carrier leakage plays an important role in Ga(NAsP)/GaP QW lasers. Therefore, it is necessary to investigate the band alignment in this laser material system. In this paper, we present a theoretical investigation to optimize the band alignment of type-I direct band gap GaNxAsyP1-x-y/GaP QWs on GaP substrates. We examine the effect of nitrogen (N) concentration on the band offset ratios and band offset energies. We also provide a comparison of the band alignment of type-I direct band gap GaNxAsyP1-x-y/GaP QWs with that of the GaNxAsyP1-x-y/AlzGa1-zP QWs on GaP substrates. Our theoretical calculations indicate that the incorporations of N into the well and Al into the barrier improve the band alignment compared to that of the GaAsP/GaP QW laser heterostructures.
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Received: 24 December 2013
Revised: 14 January 2014
Accepted manuscript online:
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PACS:
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71.20.-b
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(Electron density of states and band structure of crystalline solids)
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71.55.Eq
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(III-V semiconductors)
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73.21.Fg
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(Quantum wells)
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Corresponding Authors:
Ö L Ünsal
E-mail: omerlutfiunsal@gmail.com
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About author: 71.20.-b; 71.55.Eq; 73.21.Fg |
Cite this article:
Ö L Ünsal, B Gönül, M Temiz A theoretical investigation of the band alignment of type-I direct band gap dilute nitride phosphide alloy of GaNxAsyP1-x-y/GaP quantum wells on GaP substrates 2014 Chin. Phys. B 23 077104
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[1] |
Kondow M, Uomi K, Niwa A, Kitatani T, Watahiki S and Yazawa Y 1996 Jpn. J. Appl. Phys. 35 1273
|
[2] |
Vurgaftman I and Meyer J R 2003 J. Appl. Phys. 94 3675
|
[3] |
Kurtz S R, Allerman A A, Jones E D, Gee J M, Banas J J and Hammons B E 1999 Appl. Phys. Lett. 74 729
|
[4] |
Chamings J, Ahmed S, Adams A, Sweeney S J, Odnoblyudov V A, Tu C W, Kunert B and Stolz W 2009 Phys. Status Solidi B 246 527
|
[5] |
Yonezu H 2002 Semicond. Sci. Technol. 17 762
|
[6] |
Kunert B, Volz K, Koch J and Stolz W 2006 Appl. Phys. Lett. 88 182108
|
[7] |
Kunert B, Reinhard S, Koch J, Lampalzer M, Volz K and Stolz W 2006 Phys. Status Solidi C 3 614
|
[8] |
Borck S, Chatterjee S, Kunert B, Volz K, Stolz W, Heber J and Rühle W W 2006 Appl. Phys. Lett. 89 031102
|
[9] |
Hossain N, Jin S R, Liebich S, Zimprich M, Volz K, Kunert B, Stolz W and Sweeney S J 2012 Appl. Phys. Lett. 101 011107
|
[10] |
Perkins J D, Mascarenhas A, Zhang Y, Geisz J F, Friedman D J, Olson J M and Kurtz S R 1999 Phys. Rev. Lett. 82 3312
|
[11] |
Shan W, Walukiewicz W, Ager Ⅲ J W, Haller E E, Geisz J F, Friedman D J, Olson J M and Kurtz S R 1999 Phys. Rev. Lett. 82 1221
|
[12] |
Chamings J, Adams A R, Sweeney S J, Kunert B, Volz K and Stolz W 2008 Appl. Phys. Lett. 93 101108
|
[13] |
Zhang Y, Fluegel B, Hanna M C, Geisz J F, Wang L W and Mascarenhas A 2003 Phys. Status Solidi B 240 396
|
[14] |
Robert C, Perrin M, Cornet C, Even J and Jancu J M 2012 Appl. Phys. Lett. 100 111901
|
[15] |
Kunert B, Volz K and Stolz W 2007 Phys. Status Solidi B 244 2730
|
[16] |
Kasap S and Capper P 2006 Handbook of Electronic and Photonic Materials (Würzburg: Springer) pp. 736-737
|
[17] |
Vurgaftman I, Meyer J R and Ram-Mohan L R 2001 J. Appl. Phys. 89 5815
|
[18] |
Piprek J 2003 Semiconductor Optoelectronic Devices: Introduction to Physics and Simulation (California: Academic Press) p. 43
|
[19] |
Gönül B, Köksal K and Bakır E 2006 Physica E 31 148
|
[20] |
Gönül B, Bakır E and Köksal K 2006 Semicond. Sci. Technol. 21 876
|
[21] |
Köksal K and Gönül B 2011 Physica E 43 919
|
[22] |
Gönül B, Koçak F, Toktamış H and Oduncuoğlu M 2004 Chin. J. Phys. 42 764
|
[23] |
Minch J, Park S H, Keating T and Chuang S L 1999 IEEE J. Quantum Electron 35 771
|
[24] |
Matthews J W and Blakeslee A E 1974 J. Cryst. Growth 27 118
|
[25] |
VanDeWalle C 1989 Phys. Rev. B 39 1871
|
[26] |
Kunert B, Volz K, Nemeth I and Stolz W 2006 J. Lumin. 121 361
|
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