Optical in situ calibration of Sb to grow disordered GaInP by MOVPE

Barrigón Montañés, Enrique and Barrutia Poncela, Laura and Rey-Stolle Prado, Ignacio (2015). Optical in situ calibration of Sb to grow disordered GaInP by MOVPE. "Journal of Crystal Growth" ; ISSN 0022-0248. https://doi.org/10.1016/j.jcrysgro.2015.05.020.

Description

Title: Optical in situ calibration of Sb to grow disordered GaInP by MOVPE
Author/s:
  • Barrigón Montañés, Enrique
  • Barrutia Poncela, Laura
  • Rey-Stolle Prado, Ignacio
Item Type: Article
Título de Revista/Publicación: Journal of Crystal Growth
Date: 27 March 2015
Subjects:
Freetext Keywords: GaInP, Sb, Surfactant, Reflectance Anisotropy Spectroscopy
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Otro
UPM's Research Group: Semiconductores III-V
Creative Commons Licenses: None

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Abstract

Reflectance anisotropy spectroscopy (RAS) was employed to determine the optimal specific molar flow of Sb needed to grow GaInP with a given order parameter by MOVPE. The RAS signature of GaInP surfaces exposed to different Sb/P molar flow ratios were recorded, and the RAS peak at 3.02 eV provided a feature that was sensitive to the amount of Sb on the surface. The range of Sb/P ratios over which Sb acts as a surfactant was determined using the RA intensity of this peak, and different GaInP layers were grown using different Sb/P ratios. The order parameter of the resulting layers was measured by PL at 20 K. This procedure may be extensible to the calibration of surfactant-mediated growth of other materials exhibiting characteristic RAS signatures.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7283798NGCPVProf. Antonio Luque LópezA new generation of concentrator photovoltaic cells, modules and systems
Madrid Regional GovernmentS2009/ENE1477UnspecifiedUnspecifiedUnspecified
Government of SpainTEC2012-37286UnspecifiedUnspecifiedFabricación por MOVPE de células solares multiunión de semiconductores III-V sobre silicio
Government of SpainTEC2011-28639-C02-01UnspecifiedUnspecifiedCélulas solares para alta concentración con eficiencias superiores al 40%
Government of SpainIPT-2011-1408-420000UnspecifiedUnspecifiedUnspecified

More information

Item ID: 35540
DC Identifier: http://oa.upm.es/35540/
OAI Identifier: oai:oa.upm.es:35540
DOI: 10.1016/j.jcrysgro.2015.05.020
Official URL: https://www.sciencedirect.com/science/article/pii/S0022024815003838?via%3Dihub
Deposited by: Dr Ignacio Rey-Stolle
Deposited on: 08 Jun 2015 08:30
Last Modified: 30 May 2019 18:09
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