This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1109/JPHOTOV.2016.2532468 in citations.
Photon Tunneling in Tandem Solar Cells With Intermediate Reflector
Photon Tunneling in Tandem Solar Cells With Intermediate Reflector
We investigate the influence of surface texture on the effectiveness of reflectance by intermediate reflectors in thin-film tandem solar cells. Two distinct angular reflection regimes are identified. For large surfaces with large aspect ratios, frustrated total internal reflection or photon tunnelin...
| Personal Name(s): | Hoffmann, Andre |
|---|---|
| Bittkau, Karsten (Corresponding author) / Zhang, C. / Meier, Matthias / Carius, R. / Rau, U. | |
| Contributing Institute: |
Photovoltaik; IEK-5 |
| Published in: | IEEE journal of photovoltaics, 6 (2016) 3, S. 597 - 603 |
| Imprint: |
New York, NY
IEEE
2016
|
| DOI: |
10.1109/JPHOTOV.2016.2532468 |
| Document Type: |
Journal Article |
| Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Solar cells of the next generation |
| Publikationsportal JuSER |
|
We investigate the influence of surface texture on the effectiveness of reflectance by intermediate reflectors in thin-film tandem solar cells. Two distinct angular reflection regimes are identified. For large surfaces with large aspect ratios, frustrated total internal reflection or photon tunneling is found to be the dominating mechanism. We show that the parasitic reflection losses of commonly used randomly textured surfaces are explained by these distinct regimes and introduce a spectral reflectance parameter, which serves as a guideline for designing optimized spectrally selective intermediate reflectors. |