Passivation of a Cd1−xMgxTe absorber for application in a tandem cell
| Autor: | Amit Munshi, Walajabad S. Sampath, Carey Reich, Ali Abbas, Jennifer Drayton, Drew E. Swanson, Tushar M. Shimpi |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Tandem Passivation Magnesium Tandem cell Oxide Analytical chemistry chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences chemistry.chemical_compound chemistry 0103 physical sciences Grain boundary Thin film 0210 nano-technology Layer (electronics) |
| Zdroj: | 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC). |
| DOI: | 10.1109/pvsc.2016.7749642 |
| Popis: | In this study Cd 1−x Mg x Te thin films are investigated for use as an absorber layer for future use in top cells of a tandem device. An essential step in the development of this new absorber layer is the passivation process. An experimental passivation process using a mixture of MgCl 2 and CdCl 2 was conducted. Localized magnesium loss during the passivation process is shown to be along grain boundaries as well as in the formation of an oxide layer at the back surface. Devices which underwent the experimental passivation process showed significant improvement in device performance. A next generation n-type window layer is used in junction with a Cd( 1−x )Mg (x) Te absorber, resulting in higher performing cells than CdS. |
| Databáze: | OpenAIRE |
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