| Autor: |
Cavassilas Nicolas, Suchet Daniel, Delamarre Amaury, Michelini Fabienne, Bescond Marc, Okada Yoshitaka, Sugiyama Masakazu, Guillemoles Jean-Francois |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
EPJ Photovoltaics, Vol 9, p 11 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2105-0716 |
| DOI: |
10.1051/epjpv/2018009 |
| Popis: |
Based on electronic quantum transport modeling, we study the transition between the intermediate-band and the conduction-band in nano-structured intermediate-band solar cell. We show that a tunnel barrier between the quantum well (QW) and the host material could improve the current. The confinement generated by such a barrier favors the inter-subband optical coupling in the QW and then changes the excitation-collection trade-off. More surprisingly, we also show that tunneling impacts the radiative recombination and then the voltage. Using a detailed balance model we explain and we propose a broadening factor for this Voc modification. Finally we show that a thin tunnel barrier is beneficial for both current and voltage. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
