Thermoanalytical study of precursors for In2S3 thin films deposited by spray pyrolysis
Identifieur interne : 002261 ( Main/Repository ); précédent : 002260; suivant : 002262Thermoanalytical study of precursors for In2S3 thin films deposited by spray pyrolysis
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Abstract
Thermal decomposition of precursors for In2S3 thin films obtained by drying aqueous solutions of InCl3 and SC(NH2)2 at the In:S molar ratios of 1:3 (1) and 1:6 (2) was monitored by simultaneous TG/DTA/EGA-FTIR measurements in the dynamic 80%Ar + 20%O2 atmosphere. XRD and FTIR were used to identify the dried precursors and products of the thermal decomposition. The precursors 1 and 2 are complex compounds, while in 2 free SC(NH2)2 is also present. The thermal degradation of 1 and 2 in the temperature range of 30-900 °C consists of four mass loss steps, the total mass loss being 89.1 and 78.5%, respectively. According to XRD, In2S3 is formed below 300 °C, crystalline In2.24(NCN)3 is detected only in 1 above 520 °C and In2O3 is the final decomposition product at 900 °C. The gaseous species evolved include CS2, NH3, H2NCN, HNCS, which upon oxidation yield also COS, SO2, HCN and CO2.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Thermoanalytical study of precursors for In<sub>2</sub>
S<sub>3</sub>
thin films deposited by spray pyrolysis</title>
<author><name sortKey="Otto, K" uniqKey="Otto K">K. Otto</name>
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<author><name sortKey="Oja Acik, I" uniqKey="Oja Acik I">I. Oja Acik</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Materials Science, Tallinn University of Technology</s1>
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<author><name sortKey="Tonsuaadu, K" uniqKey="Tonsuaadu K">K. Tonsuaadu</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratory of Inorganic Materials, Tallinn University of Technology</s1>
<s2>Tallinn</s2>
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</author>
<author><name sortKey="Mere, A" uniqKey="Mere A">A. Mere</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Materials Science, Tallinn University of Technology</s1>
<s2>Tallinn</s2>
<s3>EST</s3>
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<author><name sortKey="Krunks, M" uniqKey="Krunks M">M. Krunks</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Materials Science, Tallinn University of Technology</s1>
<s2>Tallinn</s2>
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<seriesStmt><idno type="ISSN">1388-6150</idno>
<title level="j" type="abbreviated">J. therm. anal. calorim.</title>
<title level="j" type="main">Journal of thermal analysis and calorimetry</title>
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<term>Evolved gas analysis</term>
<term>Fourier transformation</term>
<term>Gas analysis</term>
<term>Gas release</term>
<term>Indium Complexes</term>
<term>Indium Sulfides</term>
<term>Infrared spectrometry</term>
<term>Precursor</term>
<term>Pyrolysis</term>
<term>Spray pyrolysis</term>
<term>Thermal analysis</term>
<term>Thermogravimetry</term>
<term>Thin film</term>
<term>Thiourea</term>
<term>X ray diffraction</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Analyse thermique</term>
<term>Précurseur</term>
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<term>Thiourée</term>
<term>Pyrolyse</term>
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<term>Diffraction RX</term>
<term>Analyse gaz</term>
<term>Dégagement gazeux</term>
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<front><div type="abstract" xml:lang="en">Thermal decomposition of precursors for In<sub>2</sub>
S<sub>3</sub>
thin films obtained by drying aqueous solutions of InCl<sub>3</sub>
and SC(NH<sub>2</sub>
)<sub>2</sub>
at the In:S molar ratios of 1:3 (1) and 1:6 (2) was monitored by simultaneous TG/DTA/EGA-FTIR measurements in the dynamic 80%Ar + 20%O<sub>2</sub>
atmosphere. XRD and FTIR were used to identify the dried precursors and products of the thermal decomposition. The precursors 1 and 2 are complex compounds, while in 2 free SC(NH<sub>2</sub>
)<sub>2</sub>
is also present. The thermal degradation of 1 and 2 in the temperature range of 30-900 °C consists of four mass loss steps, the total mass loss being 89.1 and 78.5%, respectively. According to XRD, In<sub>2</sub>
S<sub>3</sub>
is formed below 300 °C, crystalline In<sub>2.24</sub>
(NCN)<sub>3</sub>
is detected only in 1 above 520 °C and In<sub>2</sub>
O<sub>3</sub>
is the final decomposition product at 900 °C. The gaseous species evolved include CS<sub>2</sub>
, NH<sub>3</sub>
, H<sub>2</sub>
NCN, HNCS, which upon oxidation yield also COS, SO<sub>2</sub>
, HCN and CO<sub>2</sub>
.</div>
</front>
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thin films deposited by spray pyrolysis</s1>
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<fA12 i1="02" i2="1"><s1>VAN EKEREN (Paul)</s1>
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<fA14 i1="02"><s1>Laboratory of Inorganic Materials, Tallinn University of Technology</s1>
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<fC01 i1="01" l="ENG"><s0>Thermal decomposition of precursors for In<sub>2</sub>
S<sub>3</sub>
thin films obtained by drying aqueous solutions of InCl<sub>3</sub>
and SC(NH<sub>2</sub>
)<sub>2</sub>
at the In:S molar ratios of 1:3 (1) and 1:6 (2) was monitored by simultaneous TG/DTA/EGA-FTIR measurements in the dynamic 80%Ar + 20%O<sub>2</sub>
atmosphere. XRD and FTIR were used to identify the dried precursors and products of the thermal decomposition. The precursors 1 and 2 are complex compounds, while in 2 free SC(NH<sub>2</sub>
)<sub>2</sub>
is also present. The thermal degradation of 1 and 2 in the temperature range of 30-900 °C consists of four mass loss steps, the total mass loss being 89.1 and 78.5%, respectively. According to XRD, In<sub>2</sub>
S<sub>3</sub>
is formed below 300 °C, crystalline In<sub>2.24</sub>
(NCN)<sub>3</sub>
is detected only in 1 above 520 °C and In<sub>2</sub>
O<sub>3</sub>
is the final decomposition product at 900 °C. The gaseous species evolved include CS<sub>2</sub>
, NH<sub>3</sub>
, H<sub>2</sub>
NCN, HNCS, which upon oxidation yield also COS, SO<sub>2</sub>
, HCN and CO<sub>2</sub>
.</s0>
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<s5>01</s5>
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<s5>01</s5>
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<s5>01</s5>
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<s5>02</s5>
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<fC03 i1="02" i2="X" l="ENG"><s0>Precursor</s0>
<s5>02</s5>
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<fC03 i1="02" i2="X" l="SPA"><s0>Precursor</s0>
<s5>02</s5>
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<s2>NC</s2>
<s2>NA</s2>
<s5>03</s5>
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<fC03 i1="03" i2="X" l="ENG"><s0>Indium Sulfides</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>03</s5>
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<s2>NC</s2>
<s2>NA</s2>
<s5>03</s5>
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<s5>04</s5>
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<fC03 i1="04" i2="X" l="ENG"><s0>Thin film</s0>
<s5>04</s5>
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<fC03 i1="04" i2="X" l="SPA"><s0>Capa fina</s0>
<s5>04</s5>
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<s5>07</s5>
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<fC03 i1="07" i2="X" l="SPA"><s0>Tiourea</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Pyrolyse</s0>
<s5>08</s5>
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<s5>08</s5>
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<fC03 i1="08" i2="X" l="SPA"><s0>Pirólisis</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Indium Complexe</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Indium Complexes</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Indio Complejo</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>09</s5>
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<fC03 i1="10" i2="X" l="FRE"><s0>Diffraction RX</s0>
<s5>10</s5>
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<s5>10</s5>
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<s5>10</s5>
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<s5>32</s5>
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<s5>35</s5>
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<s4>INC</s4>
<s5>76</s5>
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<fC03 i1="16" i2="X" l="FRE"><s0>Dépôt par pyrolyse d'aérosol</s0>
<s4>CD</s4>
<s5>96</s5>
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<s4>CD</s4>
<s5>96</s5>
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<s4>CD</s4>
<s5>97</s5>
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<s4>CD</s4>
<s5>97</s5>
</fC03>
<fN21><s1>129</s1>
</fN21>
</pA>
<pR><fA30 i1="01" i2="1" l="ENG"><s1>ESTAC 2010 European Symposium on Thermal Analysis and Calorimetry</s1>
<s2>10</s2>
<s3>Rotterdam NLD</s3>
<s4>2010-08-22</s4>
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