Journal article
Angle resolved characterization of nanostructured and conventionally textured silicon solar cells
Department of Micro- and Nanotechnology, Technical University of Denmark1
Silicon Microtechnology, Department of Micro- and Nanotechnology, Technical University of Denmark2
Technical University of Denmark3
Nanoprobes, Department of Micro- and Nanotechnology, Technical University of Denmark4
Institute for Energy Technology5
Department of Physics, Technical University of Denmark6
Surface Physics and Catalysis, Department of Physics, Technical University of Denmark7
We report angle resolved characterization of nanostructured and conventionally textured silicon solar cells. The nanostructured solar cells are realized through a single step, mask-less, scalable reactive ion etching (RIE) texturing of the surface. Photovoltaic properties including short circuit current, open circuit voltage, fill factor (FF) and power conversion efficiency are each measured as function of the relative incident angle between the solar cell and the light source.
The relative incident angle is varied from 0° to 90° in steps of 10° in orthogonal axes, such that each solar cell is characterized at 100 different angle combinations. The angle resolved photovoltaic properties are summarized in terms of the average, angle-dependent electrical power output normalized to the power output at normal incidence and differently textured cells on different silicon substrates are compared in terms of angle resolved performance.
The results show a 3% point improvement in average electrical power output normalized with respect to normal incidence power output of RIE textured, multicrystalline Si cells compared to conventional multicrystalline Si cells and above 1% point improvement of RIE textured monocrystalline Si cells compared to conventional monocrystalline Si cells.
Language: | English |
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Year: | 2015 |
Pages: | 134-140 |
ISSN: | 18793398 and 09270248 |
Types: | Journal article |
DOI: | 10.1016/j.solmat.2015.04.001 |
ORCIDs: | Davidsen, Rasmus Schmidt , Hansen, Ole and Boisen, Anja |