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Article Dans Une Revue ACS Applied Energy Materials Année : 2018

Microscopic Evidence of Upconversion-Induced Near-Infrared Light Harvest in Hybrid Perovskite Solar Cells

Résumé

Photon upconversion represents a promising avenue to reduce the spectral mismatch losses limiting the efficiency of solar cells. Here we studied in detail the impact of inserting Yb3+/Er3+ co-doped KY7F22 upconversion nanoparticles (UCNPs) into the different interfaces of a solution-processed mixed-cation lead mixed-halide perovskite solar cell. Besides macroscopic photovoltaic characteristics, we quantify the upconversion contribution by the light-beam induced current/fluorescence mapping technique on devices with only half of their interfaces decorated by UCNPs. Such mapping experiments offer a detailed microscopic and spectroscopic picture allowing a correlation of the electrical and optical contribution of UCNPs together with the solar cell morphology.
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Dates et versions

hal-04335180 , version 1 (11-12-2023)

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Mathilde Schoenauer Sebag, Zhelu Hu, Karmel de Oliveira Lima, Hengyang Xiang, Patrick Gredin, et al.. Microscopic Evidence of Upconversion-Induced Near-Infrared Light Harvest in Hybrid Perovskite Solar Cells. ACS Applied Energy Materials, 2018, 1 (8), pp.3537-3543. ⟨10.1021/acsaem.8b00518⟩. ⟨hal-04335180⟩
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