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Daniel Walter

Researcher at Australian National University

Publications -  61
Citations -  1857

Daniel Walter is an academic researcher from Australian National University. The author has contributed to research in topics: Perovskite (structure) & Passivation. The author has an hindex of 20, co-authored 56 publications receiving 1150 citations.

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Nanoscale localized contacts for high fill factors in polymer-passivated perovskite solar cells

TL;DR: A nanopatterned electron transport layer is introduced that overcomes this trade-off by modifying the spatial distribution of the passivation layer to form nanoscale localized charge transport pathways through an otherwise passivated interface, thereby providing both effective passivation and excellent charge extraction.
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Monolithic perovskite/silicon-homojunction tandem solar cell with over 22% efficiency

TL;DR: In this paper, a mesoscopic perovskite top subcell and a high-temperature tolerant homojunction c-Si bottom subcell are used to increase the temperature tolerance of the bottom cell.
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Design, fabrication and characterisation of a 24.4% efficient interdigitated back contact solar cell

TL;DR: The interdigitated back contact (IBC) solar cells developed at the Australian National University have resulted in an independently confirmed (Fraunhofer Institut fur Solare Energiesysteme (ISE) CalLab) designated-area efficiency of 24.4 ± 0.7%, featuring short-circuit current density of 41.95 µm/cm2, open circuit voltage of 703 µmV and 82.7% fill factor as discussed by the authors.
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Double‐Sided Surface Passivation of 3D Perovskite Film for High‐Efficiency Mixed‐Dimensional Perovskite Solar Cells

TL;DR: The work was supported by the Australian Government through the Australian Renewable Energy Agency (ARENA) and the Australian Research Council (ARC), and T.P.W. as discussed by the authors was the recipient of a Future Fellowship (Project No. FT180100302).
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Identifying the Cause of Voltage and Fill Factor Losses in Perovskite Solar Cells by Using Luminescence Measurements

TL;DR: It is demonstrated that luminescence-based measurements can be used to reconstruct cell I–V curves with removal of any transport limitation effects, which allows the contribution of recombination, shunt resistance, and series resistance on the fill factor to be clarified.