Perovskite‐Based Tandem Solar Cells

Jäger, Klaus; Albrecht, Steve

doi:10.1002/9783527825851.ch17

Cited by 2 publications

(1 citation statement)

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“…Both materials allow for bandgap tunability in the range of 1.2 eV to 2.4 eV [ 11 ], making them ideal for use in a tandem structure. As reported by Jäger et al [ 24 ], the maximum power conversion efficiency of four-terminal and two-terminal tandems can be achieved if bottom cells bandgap is ∼1.0 eV.…”

Section: Introductionmentioning

confidence: 70%

Optical Analysis of Perovskite III-V Nanowires Interpenetrated Tandem Solar Cells

Tirrito,

Manley,

Becker

et al. 2024

Nanomaterials

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Multi-junction photovoltaics approaches are being explored to mitigate thermalization losses that occur in the absorption of high-energy photons. However, the design of tandem cells faces challenges such as light reflection and parasitic absorption. Nanostructures have emerged as promising solutions due to their anti-reflection properties, which enhances light absorption. III-V nanowires (NWs) solar cells can achieve strong power conversion efficiencies, offering the advantage of potentially integrating tunnel diodes within the same fabrication process. Metal halide perovskites (MHPs) have gained attention for their optoelectronic attributes and cost-effectiveness. Notably, both material classes allow for tunable bandgaps. This study explores the integration of MHPs with III-V NWs solar cells in both two-terminal and three-terminal configurations. Our primary focus lies in the optical analysis of a tandem design using III-V semiconductor nanowire arrays in combination with perovskites, highlighting their potential for tandem applications. The space offered by the compact footprint of NW arrays is used in an interpenetrated tandem structure. We systematically optimize the bottom cell, addressing reflectivity and parasitic absorption, and extend to a full tandem structure, considering experimentally feasible thicknesses. Simulation of a three-terminal structure highlights a potential increase in efficiency, decoupling the operating points of the subcells. The two-terminal analysis underscores the benefits of nanowires in reducing reflection and achieving a higher matched current between the top and the bottom cells. This research provides significant insights into NW tandem solar cell optics, enhancing our understanding of their potential to improve photovoltaic performance.

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Section: Introductionmentioning

confidence: 70%