The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic Precursors
CIGS films are prepared by single-stage annealing of the solid Se-coated In/Cu-Ga bilayer precursor. The annealing processes were performed using various Ar pressures, heating rates, and soaking times. A higher Ar pressure is needed to fabricate highly crystalline CIGS films, as no extra Se-vapor so...
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Wiley
2014-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/568648 |
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| author | Chia-Ho Huang Dong-Cherng Wen |
| author_facet | Chia-Ho Huang Dong-Cherng Wen |
| author_sort | Chia-Ho Huang |
| collection | DOAJ |
| description | CIGS films are prepared by single-stage annealing of the solid Se-coated In/Cu-Ga bilayer precursor. The annealing processes were performed using various Ar pressures, heating rates, and soaking times. A higher Ar pressure is needed to fabricate highly crystalline CIGS films, as no extra Se-vapor source is supplied. As the heating rate increases, the surface morphologies of the CIGS films become looser and some cracks are observed. However, the influence of soaking time is insignificant and the selenization process only requires a short time when the precursors are selenized at a higher temperature with a lower heating rate and a higher Ar pressure. In this study, a dense chalcopyrite CIGS film with a thickness of about 1.5-1.6 μm, with large grains (~1.2 μm) and no cracking or peeling is obtained after selenizing at a temperature of 550°C, an Ar pressure of 300 Torr, a heating rate of 60°C/min, and a soaking time of 20 min. By adequate design of the stacked precursor and controlling the annealing parameters, single-stage annealing of the solid Se-coated In/Cu-Ga bilayer precursor is simplified for the fabrication of a fully crystallized chalcopyrite CIGS absorber layers with good crystallization and large grains. |
| format | Article |
| id | doaj-art-356ea7973d9747e8bbd4ba1a9d046e71 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-356ea7973d9747e8bbd4ba1a9d046e712025-02-03T01:02:15ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/568648568648The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic PrecursorsChia-Ho Huang0Dong-Cherng Wen1Department of Mechanical Engineering, Lunghwa University of Science and Technology, Taoyuan 33306, TaiwanDepartment of Mechanical Engineering, China University of Science and Technology, Taipei 11581, TaiwanCIGS films are prepared by single-stage annealing of the solid Se-coated In/Cu-Ga bilayer precursor. The annealing processes were performed using various Ar pressures, heating rates, and soaking times. A higher Ar pressure is needed to fabricate highly crystalline CIGS films, as no extra Se-vapor source is supplied. As the heating rate increases, the surface morphologies of the CIGS films become looser and some cracks are observed. However, the influence of soaking time is insignificant and the selenization process only requires a short time when the precursors are selenized at a higher temperature with a lower heating rate and a higher Ar pressure. In this study, a dense chalcopyrite CIGS film with a thickness of about 1.5-1.6 μm, with large grains (~1.2 μm) and no cracking or peeling is obtained after selenizing at a temperature of 550°C, an Ar pressure of 300 Torr, a heating rate of 60°C/min, and a soaking time of 20 min. By adequate design of the stacked precursor and controlling the annealing parameters, single-stage annealing of the solid Se-coated In/Cu-Ga bilayer precursor is simplified for the fabrication of a fully crystallized chalcopyrite CIGS absorber layers with good crystallization and large grains.http://dx.doi.org/10.1155/2014/568648 |
| spellingShingle | Chia-Ho Huang Dong-Cherng Wen The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic Precursors International Journal of Photoenergy |
| title | The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic Precursors |
| title_full | The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic Precursors |
| title_fullStr | The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic Precursors |
| title_full_unstemmed | The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic Precursors |
| title_short | The Effects of Annealing Parameters on the Crystallization and Morphology of Cu(In,Ga)Se2 Absorber Layers Prepared by Annealing Stacked Metallic Precursors |
| title_sort | effects of annealing parameters on the crystallization and morphology of cu in ga se2 absorber layers prepared by annealing stacked metallic precursors |
| url | http://dx.doi.org/10.1155/2014/568648 |
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