The First Glued Tandem Solar Cell Using a ZnO Based Adhesive
| Autor: | Hubert Hauser, Oliver Höhn, David Lackner, Ulrike Heitmann, Jonas Bartsch, Stefan Janz, Felix Predan, Richard Hermann, Frank Dimroth, Sven Kluska |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Silicon Tandem business.industry Order (ring theory) chemistry.chemical_element 02 engineering and technology Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 7. Clean energy 0104 chemical sciences chemistry Electrical resistivity and conductivity Optoelectronics Quantum efficiency Adhesive 0210 nano-technology business Electrical conductor |
| Zdroj: | 2020 47th IEEE Photovoltaic Specialists Conference (PVSC) |
| Popis: | By adjusting the process flow of a newly developed transparent conductive adhesive (TCA), the first mechanically stable interconnection of a glued III-V on Si tandem solar cell was established utilizing a ZnO-based adhesive. The measured $V_{OC}$ of 1691 mV is a first proof of concept for the developed TCA. The functionality of the two sub-cells in the tandem device was proven by external quantum efficiency (EQE) measurements. The reflectance at the bond interface of such a glued tandem solar cell remains the limiting factor. In order to reduce the optical losses, the effect of a textured silicon surface was investigated in test structures, which indeed showed reduced reflectance. Furthermore, this textured test structure showed an improved connecting resistivity as low as $83\ \mathrm{m}\Omega\text{cm}^{2}$ . |
| Databáze: | OpenAIRE |
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