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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Wilkins, M. Walker, A. Wheeldon, J.F. Arbez, G. Schriemer, H. Hinzer, K. |
| Copyright Year | 2013 |
| Description | Author affiliation: SUNLAB, Univ. of Ottawa, Ottawa, ON, Canada (Wilkins, M.; Walker, A.; Wheeldon, J.F.; Arbez, G.; Schriemer, H.; Hinzer, K.) |
| Abstract | Solar cells with an n-p structure consisting of an InGaAsN dilute nitride emitter with n-type background doping and a p-type doped InGaAsN base are numerically simulated on GaAs and Ge substrates. The InGaAsN material parameters are chosen based on of structures reported in the literature. The short-circuit current of cells on GaAs substrates is 11% greater than similar designs on Ge substrates due to an increased photon path length. The current density to optical intensity ratio of 0.135 A/W, required to match the operating current density of an InGaP/InGaAs/InGaAsN 3-junction solar cell, is readily obtained for devices on GaAs substrates, but the required current density is not attainable when a Ge substrate is used. The InGaAsN sub-cell demonstrates enhanced performance for increasing levels of concentration up to 1000 suns. Open-circuit voltage increases near logarithmically with concentration, and the ratio of maximum-power point current to short-circuit current is constant at 82% between 10 and 1000 suns. |
| Sponsorship | IEEE Electron Devices Soc. |
| Starting Page | 2139 |
| Ending Page | 2143 |
| File Size | 544502 |
| Page Count | 5 |
| File Format | |
| DOI | 10.1109/PVSC.2013.6744897 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-06-16 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Substrates Photovoltaic cells Gallium arsenide Junctions Current density Doping diffusion lengths photovoltaics dilute nitrides multi-junction solar cell concentrated illumination |
| Content Type | Text |
| Resource Type | Article |
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