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Poster De Conférence Année : 2017

Computational design of high performance hybrid perovskite on silicon 2-T tandem solar cells based on a tunnel junction

Claudine Katan

Résumé

In this study, the optoelectronic properties of a monolithically integrated series-connected tandem solar cell are simulated. Following the large success of hybrid organic-inorganic perovskites, which have recently demonstrated large efficiencies with low production costs, we examine the possibility of using the same perovskites as absorbers in a tandem solar cell. The cell consists in a methyl ammonium mixed bromide-iodide lead perovskite, CH3NH3PbI3(1-x)Br3x (0 ≤ x ≤ 1), top sub-cell and a single-crystalline silicon bottom sub-cell. A Si-based tunnel junction connects the two sub-cells. Numerical simulations are based on a one-dimensional numerical drift-diffusion model. It is shown that a top cell absorbing material with 20% of bromide and a thickness in the 300-400 nm range affords current matching with the silicon bottom cell. Good interconnection between single cells is ensured by standard n and p doping of the silicon at 5.1019cm-3 in the tunnel junction. A maximum efficiency of about 27% is predicted for the tandem cell exceeding both the efficiencies of stand-alone silicon and perovskite cells taken for our simulations, which amount to 17,3% and 17,9%, respectively.
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Dates et versions

hal-01574956 , version 1 (24-08-2017)

Identifiants

  • HAL Id : hal-01574956 , version 1

Citer

Alain Rolland, Laurent Pedesseau, Yong Huang, Shijian Wang, Daniel Sapori, et al.. Computational design of high performance hybrid perovskite on silicon 2-T tandem solar cells based on a tunnel junction. 17th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD'17), Jul 2017, Copenhagen, Denmark. ⟨hal-01574956⟩
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