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EnglishWe report thin-film InAs/GaAs QD solar cells fabricated by epitaxial lift-off of 3-inch wafers containing QD epi-structures with high in-plane QD density. External quantum efficiency measurements demonstrate enhanced QD harvesting in the thin-film configuration. Numerical simulations show that remarkably high increase of the QD photocurrent may be achieved by replacing the planar rear mirror with micro-structured photonic gratings. Measurements of diffraction efficiency of grating prototypes realized on GaAs wafers by nanoimprint lithography are presented.
Enabling high-efficiency InAs/GaAs Quantum Dot Solar Cells by Epitaxial Lift-Off and Light Management / Cappelluti, Federica; Cédola, A. P.; Khalili, A.; Elsehrawy, Farid Khaled Mohamed Farid; Bauhuis, G.; Mulder, Peter; Schermer, John; Bissels, Günther; Aho, Timo; Niemi, Tapio; Guina, Mircea; Kim, D.; Wu, J.; Liu, H.. - ELETTRONICO. - (2019). ((Intervento presentato al convegno IEEE 44th Photovoltaic Specialists Conference (PVSC) tenutosi a Washington DC nel June 2017.
| Titolo: | Enabling high-efficiency InAs/GaAs Quantum Dot Solar Cells by Epitaxial Lift-Off and Light Management | |
| Autori: | ||
| Data di pubblicazione: | 2019 | |
| Abstract: | We report thin-film InAs/GaAs QD solar cells fabricated by epitaxial lift-off of 3-inch wafers c...ontaining QD epi-structures with high in-plane QD density. External quantum efficiency measurements demonstrate enhanced QD harvesting in the thin-film configuration. Numerical simulations show that remarkably high increase of the QD photocurrent may be achieved by replacing the planar rear mirror with micro-structured photonic gratings. Measurements of diffraction efficiency of grating prototypes realized on GaAs wafers by nanoimprint lithography are presented. | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 2017PVSC_final_formatted.pdf | Contributo pubblicato nei proceedings | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2726878
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