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Applications of defect engineering in InP-based structures
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Functional Electronic Materials.ORCID iD: 0000-0002-6405-9509
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Functional Electronic Materials.ORCID iD: 0000-0001-7155-7103
2000 (English)Conference paper, Published paper (Refereed)
Abstract [en]

 Recent developments in defect engineered InP-based structures, by grown-in intrinsic defects, are reviewed. We demonstrate that n-type doping or modulation doping in InP-based structures can be realized by an intentional introduction of PIn antisites during off-stoichiometric growth of InP at low temperatures (LT) (not, vert, similar260-350°C) by gas source molecular beam epitaxy (GS-MBE), without requiring an external shallow impurity doping source. We shall first summarize our present understanding of the mechanism responsible for the n-type conductivity of LT-InP, which is attributed to the auto-ionization of PIn antisites via the (0/+) level resonant with the conduction band. The PIn antisites are shown to exhibit properties meeting basic requirements for a dopant: (1) known chemical identification; (2) known electronic structure; (3) a control of doping concentration by varying growth temperature. We shall also provide a review of recent results from defect engineering, by utilizing the intrinsic n-type dopants of PIn antisites for modulation doping in InP-based heterostructures. Important issues such as doping efficiency, electron mobility, thermal stability, etc., will be addressed, in a close comparison with the extrinsically doping method by shallow dopants. 

Place, publisher, year, edition, pages
Mat. Sci. Eng. B, Vol. 75: Elsevier , 2000. 103-109 p.
Series
Materials Science and Engineering: B, ISSN 0921-5107 ; 2-3
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-45134DOI: 10.1016/S0921-5107(00)00342-1Local ID: 79782OAI: oai:DiVA.org:liu-45134DiVA: diva2:265996
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-03-27

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Chen, WeiminBuyanova, Irina

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  • apa
  • harvard1
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