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Light-trapping design for thin-film silicon-perovskite tandem solar cells

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4962458· OSTI ID:1467885
 [1];  [2]
  1. Univ. of Toronto, ON (Canada). Dept. of Physics; University of Toronto
  2. Univ. of Toronto, ON (Canada). Dept. of Physics
Using finite-difference time-domain simulations, we investigate the optical properties of tandem silicon/perovskite solar cells with a photonic crystal architecture, consisting of a square-lattice array of inverted pyramids with a center-to-center spacing of 2.5 μm. Here, we demonstrate that near-perfect light-trapping and absorption can be achieved over the 300–1100 nm wavelength range with this architecture, using less than 10 μm (equivalent bulk thickness) of crystalline silicon. Using a one-diode model, we obtain projected efficiencies of over 30% for the two-terminal tandem cell under a current-matching condition, well beyond the current record for single-junction silicon solar cells. Lastly, the architecture is amenable to mass fabrication through wet-etching and uses a fraction of the silicon of traditional designs, making it an attractive alternative to other silicon-perovskite tandem designs.
Research Organization:
Rensselaer Polytechnic Inst., Troy, NY (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-06ER46347
OSTI ID:
1467885
Alternate ID(s):
OSTI ID: 1324362
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 10 Vol. 120; ISSN JAPIAU; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (6)

Metal halide perovskite tandem and multiple-junction photovoltaics journal November 2017
New-generation integrated devices based on dye-sensitized and perovskite solar cells journal January 2018
Computational screening of methylammonium based halide perovskites with bandgaps suitable for perovskite-perovskite tandem solar cells journal December 2018
Photonic crystal light trapping: Beyond 30% conversion efficiency for silicon photovoltaics journal February 2020
A review of recent progress in heterogeneous silicon tandem solar cells journal March 2018
Simulation of perovskite solar cells by using CuSCN as an inorganic hole-transport material journal July 2019

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