Structural and optical characterization of MOVPE grown InGaP/GaAs MQWs for advanced photovoltaic devices (Articolo in rivista)

Type
Label
  • Structural and optical characterization of MOVPE grown InGaP/GaAs MQWs for advanced photovoltaic devices (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jcrysgro.2009.07.015 (literal)
Alternative label
  • M. Longo a; A.Parisini b;, L.Tarricone b; S.Vantaggio b; C.Bocchi c; F.Germini c; L. Lazzarini c (2009)
    Structural and optical characterization of MOVPE grown InGaP/GaAs MQWs for advanced photovoltaic devices
    in Journal of crystal growth
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M. Longo a; A.Parisini b;, L.Tarricone b; S.Vantaggio b; C.Bocchi c; F.Germini c; L. Lazzarini c (literal)
Pagina inizio
  • 4293 (literal)
Pagina fine
  • 4300 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 311 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a CNR-INFM, Dipartimento di Fisica,Universita di Parma,Viale G.P.Usberti,7/A,43100 Parma, Italy b CNISM, Dipartimento di Fisica, Universita di Parma, Viale G.P. Usberti,7/A, 43100 Parma, Italy c CNR-IMEM Parco Area delle Scienze 37/A, 43010 Loc.Fontanini-Parma, Italy (literal)
Titolo
  • Structural and optical characterization of MOVPE grown InGaP/GaAs MQWs for advanced photovoltaic devices (literal)
Abstract
  • The optimization of the electronic properties of InGaP/GaAsMQWs,to be inserted in multilayers heterostructure fo rnovel photovoltaic devices,was performed by structural,optical and photoelectrical measurements. Different sequences of nominally undoped InGaP and GaAs alternated layers were grown by low-pressure metalorganic vapour phase epitaxy, employing tertiarybutylarsine and tertiarybutylphosphine as metalorganic precursors for theV-group elements. In order to minimize the As/P exchange effect, the interface In segregation,and to control the whole lattice matching, single and multi-quantum wells (MQWs) with different: (i) periods, (ii) well widths, (iii) growth temperatures, (iv) gas-switching sequences at the interfaces and (v) indium concentrations in the InGaP alloy,were prepared and investigated.The interface sharpness and the compositional fluctuation of thick MQW region containing up to 40 well-barrier sequences were investigated for the modelling, realization and evaluation of test structures based on low-dimensional systems for third generation solar cells. (literal)
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