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  Carrier relaxation dynamics in annealed and hydrogenated (GaIn)(NAs)∕GaAs quantum wells

Hantke, K., Heber, J. D., Chatterjee, S., Klar, P. J., Volz, K., Stolz, W., et al. (2005). Carrier relaxation dynamics in annealed and hydrogenated (GaIn)(NAs)∕GaAs quantum wells. Applied Physics Letters, 87(25): 252111. doi:10.1063/1.2149154.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-B567-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-B5AC-E
Genre: Journal Article

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 Creators:
Hantke, Kristian1, Author              
Heber, J. D., Author
Chatterjee, S., Author
Klar, P. J., Author
Volz, K., Author
Stolz, W., Author
Rühle, W. W., Author
Polimeni, A., Author
Capizzi, M., Author
Affiliations:
1Group Nonlinear laser spectroscopy, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063305              

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 Abstract: We measured time-resolved photoluminescence on as-grown, annealed, as well as annealed and hydrogenated (Ga0.7In0.3)(N0.006As0.994)∕GaAs quantum-well structures. The postgrowth treatment changes not only the photoluminescence decay time but also the intensity of photoluminescence directly after excitation. This initial luminescence intensity is determined by a competition between relaxation of electrons into nitrogen related potential fluctuations in the conduction band and their capture by deep traps. In contrast, the decay of the photoluminescence is mainly determined by the competition between radiative and nonradiative recombination, which are both influenced by localization. Annealing decreases localization effects and nonradiative recombination. Hydrogenation also reduces localization effects but increases nonradiative recombination.

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Language(s): eng - English
 Dates: 2005
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1063/1.2149154
BibTex Citekey: hantke_carrier_2005
 Degree: -

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Title: Applied Physics Letters
Source Genre: Journal
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Publ. Info: Melville, NY : American Institute of Physics
Pages: 3 Volume / Issue: 87 (25) Sequence Number: 252111 Start / End Page: - Identifier: Other: 0003-6951
CoNE: /journals/resource/954922836223