Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency Performance
Device simulation is used to investigate the current-voltage efficiency performance in CdTe/CdS photovoltaic solar cell. The role of several limiting factors such as back contact Schottky barrier and its relationship to the doping density and layer thickness is examined. The role of surface recombin...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/576952 |
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| author | Hamid Fardi Fatima Buny |
| author_facet | Hamid Fardi Fatima Buny |
| author_sort | Hamid Fardi |
| collection | DOAJ |
| description | Device simulation is used to investigate the current-voltage efficiency performance in CdTe/CdS photovoltaic solar cell. The role of several limiting factors such as back contact Schottky barrier and its relationship to the doping density and layer thickness is examined. The role of surface recombination velocity at back contact interface and extended CdTe layer is included. The base CdS/CdTe experimental device used in this study shows an efficiency of 16-17%. Simulation analysis is used to optimize the experimental base device under AM1.5 solar spectrum. Results obtained indicate that higher performance efficiency may be achieved by adding and optimizing an extended CdTe electron reflector layer at the back Schottky contact. In the optimization of the CdS/CdTe cell an extended electron reflector region with a barrier height of 0.1 eV and a doping density of cm−3
with an optimum thickness of 100 nm results in best cell efficiency performance of 19.83% compared with the experimental data. |
| format | Article |
| id | doaj-art-d1dbb2fbe3e445fcb64754041373cad1 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-d1dbb2fbe3e445fcb64754041373cad12025-02-03T01:03:49ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/576952576952Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency PerformanceHamid Fardi0Fatima Buny1Department of Electrical Engineering, University of Colorado Denver, Campus Box 110, P.O. Box 173364, Denver, CO 80217-3364, USADepartment of Electrical Engineering, University of Colorado Denver, Campus Box 110, P.O. Box 173364, Denver, CO 80217-3364, USADevice simulation is used to investigate the current-voltage efficiency performance in CdTe/CdS photovoltaic solar cell. The role of several limiting factors such as back contact Schottky barrier and its relationship to the doping density and layer thickness is examined. The role of surface recombination velocity at back contact interface and extended CdTe layer is included. The base CdS/CdTe experimental device used in this study shows an efficiency of 16-17%. Simulation analysis is used to optimize the experimental base device under AM1.5 solar spectrum. Results obtained indicate that higher performance efficiency may be achieved by adding and optimizing an extended CdTe electron reflector layer at the back Schottky contact. In the optimization of the CdS/CdTe cell an extended electron reflector region with a barrier height of 0.1 eV and a doping density of cm−3 with an optimum thickness of 100 nm results in best cell efficiency performance of 19.83% compared with the experimental data.http://dx.doi.org/10.1155/2013/576952 |
| spellingShingle | Hamid Fardi Fatima Buny Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency Performance International Journal of Photoenergy |
| title | Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency Performance |
| title_full | Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency Performance |
| title_fullStr | Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency Performance |
| title_full_unstemmed | Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency Performance |
| title_short | Characterization and Modeling of CdS/CdTe Heterojunction Thin-Film Solar Cell for High Efficiency Performance |
| title_sort | characterization and modeling of cds cdte heterojunction thin film solar cell for high efficiency performance |
| url | http://dx.doi.org/10.1155/2013/576952 |
| work_keys_str_mv | AT hamidfardi characterizationandmodelingofcdscdteheterojunctionthinfilmsolarcellforhighefficiencyperformance AT fatimabuny characterizationandmodelingofcdscdteheterojunctionthinfilmsolarcellforhighefficiencyperformance |