Heavy p-type carbon doping of MOCVD GaAsP using CBrCl₃

CBrCl₃ is shown to be a useful precursor for heavy p-type carbon doping of GaAsxP1−x grown via metalorganic chemical vapor deposition (MOCVD) across a range of compositions. Structural and electrical properties of the GaAsP films were measured for various processing conditions. Use of CBrCl3 decreas...

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Bibliographic Details
Main Authors: Heidelberger, Christopher, Fitzgerald, Eugene A
Other Authors: Lincoln Laboratory
Format: Article
Language:en_US
Published: Elsevier 2018
Online Access:http://hdl.handle.net/1721.1/116757
https://orcid.org/0000-0002-2429-8943
https://orcid.org/0000-0002-1891-1959
Description
Summary:CBrCl₃ is shown to be a useful precursor for heavy p-type carbon doping of GaAsxP1−x grown via metalorganic chemical vapor deposition (MOCVD) across a range of compositions. Structural and electrical properties of the GaAsP films were measured for various processing conditions. Use of CBrCl3 decreased the growth rate of GaAsP by up to 32% and decreases x by up to 0.025. The dependence of these effects on precursor inputs is investigated, allowing C-doped GaAsP films to be grown with good thickness and compositional control. Hole concentrations of greater than 2×10¹⁹ cm−3 were measured for values of x from 0.76 to 0.90.