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Improved optoelectronic properties of rapid thermally annealed dilute nitride GaInNAs photodetectors

Tan, SL, Hunter, CJ, Zhang, S, Tan, LJJ, Goh, YL, Ng, JS, David, JPR, Marko, IP, Sweeney, SJ, Adams, AR and Allam, J (2012) Improved optoelectronic properties of rapid thermally annealed dilute nitride GaInNAs photodetectors Journal of Electronic Materials, 41 (12). pp. 3393-3401.

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Abstract

We investigate the optical and electrical characteristics of GaInNAs/GaAs long-wavelength photodiodes grown under varying conditions by molecular beam epitaxy and subjected to postgrowth rapid thermal annealing (RTA) at a series of temperatures. It is found that the device performance of the nonoptimally grown GaInNAs p-i-n structures, with nominal compositions of 10% In and 3.8% N, can be improved significantly by the RTA treatment to match that of optimally grown structures. The optimally annealed devices exhibit overall improvement in optical and electrical characteristics, including increased photoluminescence brightness, reduced density of deep-level traps, reduced series resistance resulting from the GaAs/GaInNAs heterointerface, lower dark current, and significantly lower background doping density, all of which can be attributed to the reduced structural disorder in the GaInNAs alloy.© 2012 TMS.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmailORCID
Tan, SLUNSPECIFIEDUNSPECIFIED
Hunter, CJUNSPECIFIEDUNSPECIFIED
Zhang, SUNSPECIFIEDUNSPECIFIED
Tan, LJJUNSPECIFIEDUNSPECIFIED
Goh, YLUNSPECIFIEDUNSPECIFIED
Ng, JSUNSPECIFIEDUNSPECIFIED
David, JPRUNSPECIFIEDUNSPECIFIED
Marko, IPUNSPECIFIEDUNSPECIFIED
Sweeney, SJUNSPECIFIEDUNSPECIFIED
Adams, ARUNSPECIFIEDUNSPECIFIED
Allam, JUNSPECIFIEDUNSPECIFIED
Date : December 2012
Identification Number : 10.1007/s11664-012-2245-9
Additional Information : © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 25 Jan 2013 09:23
Last Modified : 09 Jun 2014 13:39
URI: http://epubs.surrey.ac.uk/id/eprint/745030

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