Abstract
Luminescent solar concentrator (LSC) tandem-on-silicon (Si) provides a route towards achieving higher than 30% overall efficiency which can overcome the theoretical efficiency limit of a single junction Si cell. Here, we present optical coupling and performance of high Voc passivated contact Si bottom cell for LSC tandem-on-Si where the top module consists of highly efficient luminophores and an array of micro InGaP cells embedded in a poly (lauryl methacrylate) waveguide. In this device configuration, InGaP cell area coverage is only ∼0.5% of the total LSC area which significantly reduces the high cost III-V material usage. The performance of Si sub-cell is investigated under LSC spectrum and is compared against the measurement done under 1 μm thick InGaP filter which mimics the spectrum seen by Si bottom cell in a conventional III-V/Si tandem. Voc of greater than 700 mV has been observed for the passivated contact Si bottom cell in these tandem applications.
| Original language | American English |
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| Pages | 747-749 |
| Number of pages | 3 |
| DOIs | |
| State | Published - Jun 2019 |
| Event | 46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States Duration: 16 Jun 2019 → 21 Jun 2019 |
Conference
| Conference | 46th IEEE Photovoltaic Specialists Conference, PVSC 2019 |
|---|---|
| Country/Territory | United States |
| City | Chicago |
| Period | 16/06/19 → 21/06/19 |
Bibliographical note
Publisher Copyright:© 2019 IEEE.
NLR Publication Number
- NREL/CP-5900-74095
Keywords
- luminescent solar concentrator
- passivated contact cells
- silicon