13 hasil untuk "Sam Teale"
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Artikel Jurnal
Tensor reduction for Feynman integrals with Lorentz and spinor indices
Abstract We present an efficient graphical approach to construct projectors for the tensor reduction of multi-loop Feynman integrals with both Lorentz and spinor indices in D dimensions. An ansatz for the projectors is constructed making use of its symmetry properties via an orbit partition…
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Artikel Jurnal
Germanium silicon oxide achieves multi-coloured ultra-long phosphorescence and delayed fluorescence at high temperature
Advanced security applications require materials responsive to different stimuli with remarkable stability. Here, Sargent et al. introduce Ge homogenously into a silica scaffold and obtain a colourtuned germanium silicon oxide with ultra-long phosphorescence and delayed fluorescence across a broad…
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Artikel Jurnal Teks lengkap
Bifunctional Surface Engineering on SnO2 Reduces Energy Loss in Perovskite Solar Cells
Tin oxide (SnO 2 ) has recently emerged as a promising electron transport layer for perovskite solar cells (PSCs) in light of the material’s optical and electronic properties and its low-temperature processing. However, SnO 2 films are prone to surface defect formation, which results in energy loss…
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Artikel Jurnal
Large piezoelectric response in a Jahn-Teller distorted molecular metal halide
Here, the authors utilise a combination of quasi-spherical theory and Jahn-Teller distortion to enhance the piezoelectric response of molecular metal halides, and the resulting piezoelectric energy harvesters exhibit superior power densities to the best-reported molecular hybrid energy harvesters.
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Artikel Jurnal
Multication perovskite 2D/3D interfaces form via progressive dimensional reduction
Many best-performing perovskite photovoltaics use 2D/3D interfaces to improve efficiency and stability, yet the mechanism of interface assembly is unclear. Here, Proppe et al. use in-situ GIWAXS to resolve this transformation, observing progressive dimensional reduction from 3D to 2D perovskites.
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Artikel Jurnal Teks lengkap
Inorganic wide-bandgap perovskite subcells with dipole bridge for all-perovskite tandems
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Artikel Jurnal
Organic–inorganic hybrid perovskite scintillators for mixed field radiation detection
Abstract Sensitive and fast detection of neutrons and gamma rays is vital for homeland security, high‐energy physics, and proton therapy. Fast‐neutron detectors rely on light organic scintillators, and γ‐ray detectors use heavy inorganic scintillators and semiconductors. Efficient mixed‐field…
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Artikel Jurnal Teks lengkap
Improved charge extraction in inverted perovskite solar cells with dual-site-binding ligands
Inverted (pin) perovskite solar cells (PSCs) afford improved operating stability in comparison to their nip counterparts but have lagged in power conversion efficiency (PCE). The energetic losses responsible for this PCE deficit in pin PSCs occur primarily at the interfaces between the perovskite…
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Artikel Jurnal Teks lengkap
Engineering ligand reactivity enables high-temperature operation of stable perovskite solar cells
Perovskite solar cells (PSCs) consisting of interfacial two- and three-dimensional heterostructures that incorporate ammonium ligand intercalation have enabled rapid progress toward the goal of uniting performance with stability. However, as the field continues to seek ever-higher durability…
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Artikel Jurnal Teks lengkap
Regulating surface potential maximizes voltage in all-perovskite tandems
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Artikel Jurnal Teks lengkap
Suppressed phase segregation for triple-junction perovskite solar cells