Memorias de investigación
Research Publications in journals:
Influence of GaInP ordering on the electronic quality of concentrator solar cells
Year:2008
Research Areas
  • Electronics engineering
Information
Abstract
The orderingphenomenonproducesareductioninthebandgapoftheGaInPmaterial.Thougha drawbackformanyoptoelectronicapplications,orderingcanbeusedasanadditionaldegreeofmaterial and deviceengineeringfreedom.TheperformanceoftherecordefficiencyGaInP/GaAs/Gemultijunction solar cellsdependsonthequalityanddesignoftheGaInPtopcell,whichcanbeaffectedalsoby ordering. Thetradeoffexistingbetweenbandgapandminoritycarrierproperties,andthepossibilityof creating abacksurfacefield(BSF)structurebasedonanorder¿disorderGaInPheterostructuremakes the studyoftheorderingappealingforsolarcellapplications.Inthiswork,theorderingdependency with thegrowthconditionsandsubstrateorientationisstudied.Theresultsobtainedarepresentedto enrich andextendthedataavailableintheliterature.Thenthepropertiesoforder¿disorderGaInP heterostructuresareassessedbyusingthemasBSFinGaInPconcentratorsolarcells.Theexternal quantumefficiency(EQE)showsagoodbehavioroftheseBSFlayers,butunexpectedlypoorelectronic qualityintheactivelayers.Althoughtheexactoriginofthisproblemremainstobeknown,itis attributedtotrapsintroducedbytheordered/disordereddomainsmatrixorgrowthnativedefects.EQE measurementswithbiaslightshowarecoveryoftheminoritycarrierproperties,presumablyduetothe saturation ofthetraps.
International
Si
JCR
Si
Title
JOURNAL OF CRYSTAL GROWTH
ISBN
0022-0248
Impact factor JCR
1,95
Impact info
Volume
310
Journal number
23
From page
5209
To page
5213
Month
ENERO
Ranking
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Semiconductores III-V
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física