Photoluminescence and band offsets of AlInAs/InP
Identifieur interne : 01C393 ( Main/Repository ); précédent : 01C392; suivant : 01C394Photoluminescence and band offsets of AlInAs/InP
Auteurs : RBID : Pascal:96-0047626Descripteurs français
- Pascal (Inist)
- Photoluminescence, Interface solide solide, Etat impureté, Accepteur, Etat localisé, Energie liaison, Discontinuité bande, Autocohérence, Matériau semiconducteur, Composé binaire, Composé ternaire, Indium phosphure, Indium arséniure, Aluminium arséniure, Etude expérimentale, Décomposition niveau énergie, 7866F.
English descriptors
- KwdEn :
Abstract
We report the temperature dependence of Al0.46In0.54As photoluminescence (PL) transition energies and Al0.46In0.54As/InP interface staggered line-up luminescence (SLL) energy. The S shape appearing from 4 to 90 K on the energy versus temperature curves of these PL energies is due to extrinsic recombinations. In particular, the S shape of the SLL energy curve versus temperature is probably due to acceptor impurities localized in AllnAs, at the interface (on-edge impurities). The binding energy of on-edge impurities is lower than its value in the bulk material. This explains why the S shape is less pronounced on the SLL than on the AllnAs PL curve. The band offsets were determined by solving the Schrödinger-Poisson equation system with a self-consistent calculation program. At 4.5 K, the conduction and valence band offsets of the Al0.46In0.54As/InP interface were respectively 0.384 eV and 0.295 eV. This is in agreement with the already reported value of 410 meV for the conduction band offset of the lattice-matched Al0.48In0.52As/InP heterostructure. The temperature dependence of the conduction and valence band offsets is shown to be important : respectively 35 meV and 23 meV between 4.5 and 300 K. The Van Vechten-Malloy model (following a thermodynamic approach) for the temperature dependence of the band offsets is compared with our results. The comparison shows only a qualitative agreement.
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<author><name sortKey="Abraham, P" uniqKey="Abraham P">P. Abraham</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>CNRS Univ. Claude Bernard Lyon, URA 116 lab. physico chimie minérale</s1>
<s2>69622 Villeurbanne</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
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<country>France</country>
<placeName><region type="region" nuts="2">Rhône-Alpes</region>
<settlement type="city">Villeurbanne</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Garcia Perez, M A" uniqKey="Garcia Perez M">M. A. Garcia Perez</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>CNRS, INSA, URA 358 lab. physique matériaux</s1>
<s2>69621 Villeurbanne</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<author><name sortKey="Benyattou, T" uniqKey="Benyattou T">T. Benyattou</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>CNRS, INSA, URA 358 lab. physique matériaux</s1>
<s2>69621 Villeurbanne</s2>
<s3>FRA</s3>
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<settlement type="city">Villeurbanne</settlement>
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<author><name sortKey="Guillot, G" uniqKey="Guillot G">G. Guillot</name>
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<s2>69621 Villeurbanne</s2>
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<settlement type="city">Villeurbanne</settlement>
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<author><name sortKey="Sacilotti, M" uniqKey="Sacilotti M">M. Sacilotti</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Univ. Bourgogne, inst. univ. technologie-GMP</s1>
<s2>21004 Dijon</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
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<placeName><region type="region" nuts="2">Bourgogne</region>
<settlement type="city">Dijon</settlement>
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<author><name sortKey="Letartre, X" uniqKey="Letartre X">X. Letartre</name>
<affiliation wicri:level="3"><inist:fA14 i1="04"><s1>CNRS Ecole cent. Lyon, URA 848 lab. electronique</s1>
<s2>69131 Ecully</s2>
<s3>FRA</s3>
<sZ>6 aut.</sZ>
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<term>Aluminium arsenides</term>
<term>Band offset</term>
<term>Binary compounds</term>
<term>Binding energy</term>
<term>Energy-level splitting</term>
<term>Experimental study</term>
<term>Impurity states</term>
<term>Indium arsenides</term>
<term>Indium phosphides</term>
<term>Localized states</term>
<term>Photoluminescence</term>
<term>Self consistency</term>
<term>Semiconductor materials</term>
<term>Solid-solid interfaces</term>
<term>Ternary compounds</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Photoluminescence</term>
<term>Interface solide solide</term>
<term>Etat impureté</term>
<term>Accepteur</term>
<term>Etat localisé</term>
<term>Energie liaison</term>
<term>Discontinuité bande</term>
<term>Autocohérence</term>
<term>Matériau semiconducteur</term>
<term>Composé binaire</term>
<term>Composé ternaire</term>
<term>Indium phosphure</term>
<term>Indium arséniure</term>
<term>Aluminium arséniure</term>
<term>Etude expérimentale</term>
<term>Décomposition niveau énergie</term>
<term>7866F</term>
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<front><div type="abstract" xml:lang="en">We report the temperature dependence of Al<sub>0.46</sub>
In<sub>0.54</sub>
As photoluminescence (PL) transition energies and Al<sub>0.46</sub>
In<sub>0.54</sub>
As/InP interface staggered line-up luminescence (SLL) energy. The S shape appearing from 4 to 90 K on the energy versus temperature curves of these PL energies is due to extrinsic recombinations. In particular, the S shape of the SLL energy curve versus temperature is probably due to acceptor impurities localized in AllnAs, at the interface (on-edge impurities). The binding energy of on-edge impurities is lower than its value in the bulk material. This explains why the S shape is less pronounced on the SLL than on the AllnAs PL curve. The band offsets were determined by solving the Schrödinger-Poisson equation system with a self-consistent calculation program. At 4.5 K, the conduction and valence band offsets of the Al<sub>0.46</sub>
In<sub>0.54</sub>
As/InP interface were respectively 0.384 eV and 0.295 eV. This is in agreement with the already reported value of 410 meV for the conduction band offset of the lattice-matched Al<sub>0.48</sub>
In<sub>0.52</sub>
As/InP heterostructure. The temperature dependence of the conduction and valence band offsets is shown to be important : respectively 35 meV and 23 meV between 4.5 and 300 K. The Van Vechten-Malloy model (following a thermodynamic approach) for the temperature dependence of the band offsets is compared with our results. The comparison shows only a qualitative agreement.</div>
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<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<fA14 i1="03"><s1>Univ. Bourgogne, inst. univ. technologie-GMP</s1>
<s2>21004 Dijon</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
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<fA14 i1="04"><s1>CNRS Ecole cent. Lyon, URA 848 lab. electronique</s1>
<s2>69131 Ecully</s2>
<s3>FRA</s3>
<sZ>6 aut.</sZ>
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<fC01 i1="01" l="ENG"><s0>We report the temperature dependence of Al<sub>0.46</sub>
In<sub>0.54</sub>
As photoluminescence (PL) transition energies and Al<sub>0.46</sub>
In<sub>0.54</sub>
As/InP interface staggered line-up luminescence (SLL) energy. The S shape appearing from 4 to 90 K on the energy versus temperature curves of these PL energies is due to extrinsic recombinations. In particular, the S shape of the SLL energy curve versus temperature is probably due to acceptor impurities localized in AllnAs, at the interface (on-edge impurities). The binding energy of on-edge impurities is lower than its value in the bulk material. This explains why the S shape is less pronounced on the SLL than on the AllnAs PL curve. The band offsets were determined by solving the Schrödinger-Poisson equation system with a self-consistent calculation program. At 4.5 K, the conduction and valence band offsets of the Al<sub>0.46</sub>
In<sub>0.54</sub>
As/InP interface were respectively 0.384 eV and 0.295 eV. This is in agreement with the already reported value of 410 meV for the conduction band offset of the lattice-matched Al<sub>0.48</sub>
In<sub>0.52</sub>
As/InP heterostructure. The temperature dependence of the conduction and valence band offsets is shown to be important : respectively 35 meV and 23 meV between 4.5 and 300 K. The Van Vechten-Malloy model (following a thermodynamic approach) for the temperature dependence of the band offsets is compared with our results. The comparison shows only a qualitative agreement.</s0>
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