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Optical spectra and energy band structure of single crystalline CuGaS2 and CuInS2

Identifieur interne : 007390 ( Main/Repository ); précédent : 007389; suivant : 007391

Optical spectra and energy band structure of single crystalline CuGaS2 and CuInS2

Auteurs : RBID : Pascal:07-0533659

Descripteurs français

Pascal (Inist)
- Structure bande, Spectre réflexion, Rayonnement polarisé, Analyse Kramers Kronig, Fonction diélectrique, Bande interdite, Indice réfraction, Indice extinction, Coefficient absorption, Monocristal, Cuivre sulfure, Indium sulfure, Chalcopyrite, Gallium sulfure, CuGaS2, CuInS2.

English descriptors

KwdEn :
- Absorption coefficients, Band structure, Chalcopyrite, Copper sulfides, Dielectric function, Energy gap, Extinction index, Gallium sulfides, Indium sulfides, Kramers Kronig analysis, Monocrystals, Polarized radiation, Reflection spectrum, Refractive index.

Abstract

The reflection spectroscopy of chalcopyrite CuGaS₂ and CuInS₂single crystals has been applied for light polarized perpendicular (E ⊥ c) and parallel (E ⁄ c) to the optical axis in the photon energy range between 1.5 and 6 eV at 77 K. By using the Kramers-Kronig relations, the spectral dependences of the real ε₁ and imaginary ε₂ components of the complex dielectric function ε(E) = ε₁ (E) + iε₂(E) have been calculated for the investigated materials. As a result, the energy band structure of CuGaS₂ and CuInS₂ at photon energies higher than the fundamental band gap is derived from the analysis of the structures observed in ε(ω) spectra. Additionally, the spectral dependences of the complex refractive index, extinction coefficient and absorption coefficient s of CuGaS₂ and CuInS₂ single crystals are determined in the 1.5-6 eV photon energy range.

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Pascal:07-0533659

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Optical spectra and energy band structure of single crystalline CuGaS<sub>2</sub>
 and CuInS<sub>2</sub>
</title>
<author><name sortKey="Levcenko, S" uniqKey="Levcenko S">S. Levcenko</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Applied Physics, Academy of Sciences of Moldova</s1>
<s2>Chisinau, MD 2028</s2>
<s3>MDA</s3>
<sZ>1 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Moldavie</country>
<wicri:noRegion>Chisinau, MD 2028</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Syrbu, N N" uniqKey="Syrbu N">N. N. Syrbu</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Technical University of Moldova</s1>
<s2>Chisinau, MD-2004</s2>
<s3>MDA</s3>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Moldavie</country>
<wicri:noRegion>Technical University of Moldova</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Tezlevan, V E" uniqKey="Tezlevan V">V. E. Tezlevan</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Applied Physics, Academy of Sciences of Moldova</s1>
<s2>Chisinau, MD 2028</s2>
<s3>MDA</s3>
<sZ>1 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Moldavie</country>
<wicri:noRegion>Chisinau, MD 2028</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Arushanov, E" uniqKey="Arushanov E">E. Arushanov</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Applied Physics, Academy of Sciences of Moldova</s1>
<s2>Chisinau, MD 2028</s2>
<s3>MDA</s3>
<sZ>1 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Moldavie</country>
<wicri:noRegion>Chisinau, MD 2028</wicri:noRegion>
</affiliation>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Hahn-Meitner Institut GmbH, Glienicker Strasse 100</s1>
<s2>14109 Berlin</s2>
<s3>DEU</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<placeName><region type="land" nuts="3">Berlin</region>
<settlement type="city">Berlin</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Doka Yamigno, S" uniqKey="Doka Yamigno S">S. Doka-Yamigno</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Hahn-Meitner Institut GmbH, Glienicker Strasse 100</s1>
<s2>14109 Berlin</s2>
<s3>DEU</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<placeName><region type="land" nuts="3">Berlin</region>
<settlement type="city">Berlin</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Schedel Niedrig, Th" uniqKey="Schedel Niedrig T">Th. Schedel-Niedrig</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Hahn-Meitner Institut GmbH, Glienicker Strasse 100</s1>
<s2>14109 Berlin</s2>
<s3>DEU</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<placeName><region type="land" nuts="3">Berlin</region>
<settlement type="city">Berlin</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Lux Steiner, M Ch" uniqKey="Lux Steiner M">M. Ch. Lux-Steiner</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Hahn-Meitner Institut GmbH, Glienicker Strasse 100</s1>
<s2>14109 Berlin</s2>
<s3>DEU</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<placeName><region type="land" nuts="3">Berlin</region>
<settlement type="city">Berlin</settlement>
</placeName>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="inist">07-0533659</idno>
<date when="2007">2007</date>
<idno type="stanalyst">PASCAL 07-0533659 INIST</idno>
<idno type="RBID">Pascal:07-0533659</idno>
<idno type="wicri:Area/Main/Corpus">007084</idno>
<idno type="wicri:Area/Main/Repository">007390</idno>
</publicationStmt>
<seriesStmt><idno type="ISSN">0953-8984</idno>
<title level="j" type="abbreviated">J. phys., Condens. matter : (Print)</title>
<title level="j" type="main">Journal of physics. Condensed matter : (Print)</title>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption coefficients</term>
<term>Band structure</term>
<term>Chalcopyrite</term>
<term>Copper sulfides</term>
<term>Dielectric function</term>
<term>Energy gap</term>
<term>Extinction index</term>
<term>Gallium sulfides</term>
<term>Indium sulfides</term>
<term>Kramers Kronig analysis</term>
<term>Monocrystals</term>
<term>Polarized radiation</term>
<term>Reflection spectrum</term>
<term>Refractive index</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Structure bande</term>
<term>Spectre réflexion</term>
<term>Rayonnement polarisé</term>
<term>Analyse Kramers Kronig</term>
<term>Fonction diélectrique</term>
<term>Bande interdite</term>
<term>Indice réfraction</term>
<term>Indice extinction</term>
<term>Coefficient absorption</term>
<term>Monocristal</term>
<term>Cuivre sulfure</term>
<term>Indium sulfure</term>
<term>Chalcopyrite</term>
<term>Gallium sulfure</term>
<term>CuGaS2</term>
<term>CuInS2</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">The reflection spectroscopy of chalcopyrite CuGaS<sub>2</sub>
 and CuInS<sub>2</sub>
single crystals has been applied for light polarized perpendicular (E ⊥ c) and parallel (E ⁄ c) to the optical axis in the photon energy range between 1.5 and 6 eV at 77 K. By using the Kramers-Kronig relations, the spectral dependences of the real ε<sub>1</sub>
 and imaginary ε<sub>2</sub>
 components of the complex dielectric function ε(E) = ε<sub>1</sub>
 (E) + iε<sub>2</sub>
(E) have been calculated for the investigated materials. As a result, the energy band structure of CuGaS<sub>2</sub>
 and CuInS<sub>2</sub>
 at photon energies higher than the fundamental band gap is derived from the analysis of the structures observed in ε(ω) spectra. Additionally, the spectral dependences of the complex refractive index, extinction coefficient and absorption coefficient s of CuGaS<sub>2</sub>
 and CuInS<sub>2</sub>
 single crystals are determined in the 1.5-6 eV photon energy range.</div>
</front>
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<fA11 i1="07" i2="1"><s1>LUX-STEINER (M. Ch.)</s1>
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<fA14 i1="01"><s1>Institute of Applied Physics, Academy of Sciences of Moldova</s1>
<s2>Chisinau, MD 2028</s2>
<s3>MDA</s3>
<sZ>1 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<fA14 i1="02"><s1>Technical University of Moldova</s1>
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<s3>MDA</s3>
<sZ>2 aut.</sZ>
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<fA14 i1="03"><s1>Hahn-Meitner Institut GmbH, Glienicker Strasse 100</s1>
<s2>14109 Berlin</s2>
<s3>DEU</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
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<fC01 i1="01" l="ENG"><s0>The reflection spectroscopy of chalcopyrite CuGaS<sub>2</sub>
 and CuInS<sub>2</sub>
single crystals has been applied for light polarized perpendicular (E ⊥ c) and parallel (E ⁄ c) to the optical axis in the photon energy range between 1.5 and 6 eV at 77 K. By using the Kramers-Kronig relations, the spectral dependences of the real ε<sub>1</sub>
 and imaginary ε<sub>2</sub>
 components of the complex dielectric function ε(E) = ε<sub>1</sub>
 (E) + iε<sub>2</sub>
(E) have been calculated for the investigated materials. As a result, the energy band structure of CuGaS<sub>2</sub>
 and CuInS<sub>2</sub>
 at photon energies higher than the fundamental band gap is derived from the analysis of the structures observed in ε(ω) spectra. Additionally, the spectral dependences of the complex refractive index, extinction coefficient and absorption coefficient s of CuGaS<sub>2</sub>
 and CuInS<sub>2</sub>
 single crystals are determined in the 1.5-6 eV photon energy range.</s0>
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<s5>02</s5>
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<fC03 i1="01" i2="3" l="ENG"><s0>Band structure</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Spectre réflexion</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Reflection spectrum</s0>
<s5>03</s5>
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<fC03 i1="02" i2="X" l="SPA"><s0>Espectro reflexión</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Rayonnement polarisé</s0>
<s5>04</s5>
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<fC03 i1="03" i2="X" l="ENG"><s0>Polarized radiation</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Radiación polarizada</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Analyse Kramers Kronig</s0>
<s5>05</s5>
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<s5>05</s5>
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<s5>06</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Dielectric function</s0>
<s5>06</s5>
</fC03>
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<s5>07</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Energy gap</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Indice réfraction</s0>
<s5>08</s5>
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<fC03 i1="07" i2="3" l="ENG"><s0>Refractive index</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE"><s0>Indice extinction</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG"><s0>Extinction index</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Coefficient absorption</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Absorption coefficients</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Monocristal</s0>
<s5>15</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Monocrystals</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Cuivre sulfure</s0>
<s2>NK</s2>
<s5>16</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Copper sulfides</s0>
<s2>NK</s2>
<s5>16</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Indium sulfure</s0>
<s2>NK</s2>
<s5>17</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Indium sulfides</s0>
<s2>NK</s2>
<s5>17</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Chalcopyrite</s0>
<s5>18</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Chalcopyrite</s0>
<s5>18</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Gallium sulfure</s0>
<s2>NK</s2>
<s5>19</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Gallium sulfides</s0>
<s2>NK</s2>
<s5>19</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>CuGaS2</s0>
<s4>INC</s4>
<s5>52</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE"><s0>CuInS2</s0>
<s4>INC</s4>
<s5>53</s5>
</fC03>
<fN21><s1>344</s1>
</fN21>
</pA>
</standard>
</inist>
</record>

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Optical spectra and energy band structure of single crystalline CuGaS2 and CuInS2

Optical spectra and energy band structure of single crystalline CuGaS2 and CuInS2

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

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