Loading...
Please wait, while we are loading the content...
Similar Documents
Design of an intermediate Bragg reflector within triple-junction solar cells for spectrum splitting applications
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jiang, Yajie Keevers, Mark J. Pearce, Phoebe Ekins-Daukes, Nicholas J. Green, Martin A. |
| Copyright Year | 2019 |
| Abstract | Abstract We investigate the use of distributed Bragg reflectors (DBRs) within triple-junction solar cells (TJSC) for spectrum splitting photovoltaics. An optical model of a lattice-matched (LM) GaInP/GaInAs/Ge TJSC with intermediate DBR is developed, in good agreement with measured reflectance. By modifying the DBR layer number, composition and thickness to broaden the reflectance band, we show that a DBR can provide suitable 900–1050 nm reflectance for spectrum splitting from the LM TJSC to a Si cell, resulting in a more efficient 4-junction receiver. For better practicality and cost effectiveness, we propose that the buffer layers in metamorphic (MM) TJSCs could additionally function as a DBR for spectrum splitting applications. We propose several DBR designs to achieve a suitable spectrum-splitting reflectance band from MM TJSCs to a Si cell, again resulting in a more efficient 4-junction receiver. Finally, we show that our intermediate DBR approach to spectrum splitting has the advantage of a greatly reduced angle-of-incidence dependence compared to a discrete dielectric filter. |
| Starting Page | 259 |
| Ending Page | 269 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.solmat.2019.01.011 |
| Alternate Webpage(s) | http://spiral.imperial.ac.uk/bitstream/10044/1/67201/2/Bragg%20Reflector%20SOLMAT.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.solmat.2019.01.011 |
| Volume Number | 193 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
