Towards the Development of High Efficiency Multijunction Thin Film Solar Cells
| Autor: | Seyrling, S., Buecheler, S., Chirila, A., Perrenoud, J., Verma, R., Wenger, S., Grätzel, M., Tiwari, A.N. |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| DOI: | 10.4229/24theupvsec2009-3bv.5.2 |
| Popis: | 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 2895-2897 The opto-electronic properties of II-VI and I-III-VI chalcogenides of different compositions and the optical absorption tunability of dye-sensitized solar cells (DSCs) with suitable choice of the sensitizer make these solar cells applicable in multijunction tandem solar cells. For the development of high efficiency multijunction stacked solar cells appropriate band gap engineering of the constituent cells is important. DSCs are suitable as top cell while II-VI and I-III-VI chalcogenide based solar cells could be used below in dual- or triple- junction solar cell configurations. Different combinations of sensitizers and [Ga]/[In+Ga] ratios were investigated to find the best combination to achieve high efficiencies and limiting factors of the overall current were determined. Advantages of triple junction over double junction are evaluated and preliminary work on a possible DSC/CdTe/CI(G)S triple junction cell is initiated. Transmission of the top and intermediate cell was recorded and the bottom CIGS cell composition varied to potentially achieve current matching in the devices. |
| Databáze: | OpenAIRE |
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