Results 11 to 20 of about 133,815 (294)

Shear-induced material transfer across the core-mantle boundary aided by the post-perovskite phase transition [PDF]

open access: yes, 2005
We present a novel mechanical model for the extraction of outer core material upwards across the CMB into the mantle side region of D" and subsequent interaction with the post-perovskite (ppv) phase transition.
Brodholt, John   +4 more
core   +10 more sources

Effects of perovskite thickness and electrode selection on carrier transport and performance in hybrid transparent-electrode perovskite solar cells [PDF]

open access: yesRSC Advances
Perovskite solar cells (PSCs) have attracted considerable attention because of their excellent light-harvesting capability and efficient charge transport characteristics.
Dessalegne A. Tsehay
doaj   +2 more sources

Deformation-Induced Mechanical Instabilities at the Core-Mantle Boundary [PDF]

open access: yes, 2007
Post-Perovskite: The Last Mantle Phase Transition Our understanding of the core-mantle boundary (CMB) region has improved significantly over the past several years due, in part, to the discovery of the post-perovskite phase.
Petford, Nick   +2 more
core   +10 more sources

Narrowband Monolithic Perovskite–Perovskite Tandem Photodetectors [PDF]

open access: yesAdvanced Optical Materials, 2022
AbstractNarrowband photodetectors (PDs) are sought after for many applications requiring selective spectral response. The most common systems combine optical bandpass filters with broadband photodiodes. This work reports a method to obtain a narrowband response in a perovskite PD by the monolithic integration of a perovskite photoconductor and a ...
Lucía Martínez‐Goyeneche   +5 more
openaire   +2 more sources

Layered Perovskites Enhanced Perovskite Photodiodes

open access: yesThe Journal of Physical Chemistry Letters, 2021
Recently, two-dimensional layered perovskites have emerged as effective additives for stabilizing conventional three-dimensional metal halide perovskites. With the addition of layered perovskites, the perovskite-based devices also exhibited enhanced optoelectronic properties, such as reduced nonradiative recombination and ionic migration, strengthened ...
Ruiming Li   +6 more
openaire   +3 more sources

The challenge of studying perovskite solar cells’ stability with machine learning

open access: yesFrontiers in Energy Research, 2023
Perovskite solar cells are the most dynamic emerging photovoltaic technology and attracts the attention of thousands of researchers worldwide. Recently, many of them are targeting device stability issues–the key challenge for this technology–which has ...
Paolo Graniero   +9 more
doaj   +1 more source

Field-induced structural and orbital transformations leading to large bulk photovoltaic response in modified barium titanate

open access: yesAPL Materials, 2023
Ferroelectric systems are gaining importance in the perspective of capitalizing on their potential in energy applications. In particular, the ferroelectric photovoltaic effect is one of the attractive fields because of the reported above bandgap ...
Shanmuga Priya Karmegam   +5 more
doaj   +1 more source

Zwitterions in 3D Perovskites: Organosulfide-Halide Perovskites

open access: yesJournal of the American Chemical Society, 2022
Although sulfide perovskites usually require high-temperature syntheses, we demonstrate that organosulfides can be used in the milder syntheses of halide perovskites. The zwitterionic organosulfide, cysteamine (CYS; +NH3(CH2)2S-), serves as both the X- site and A+ site in the ABX3 halide perovskites, yielding the first examples of 3D organosulfide ...
Li, J   +10 more
openaire   +3 more sources

Monolithic perovskite/organic tandem solar cells: Developments, prospects, and challenges

open access: yesNano Select, 2021
Monolithic perovskite solar cells (PSCs) and small‐bandgap organic photovoltaics (OPVs) integrated perovskite/organic tandem devices and binary perovskite/bulk‐heterojunction (BHJ) devices have recently attracted tremendous attention due to their ...
Yue‐Min Xie   +5 more
doaj   +1 more source

Constructing Soft Perovskite–Substrate Interfaces for Dynamic Modulation of Perovskite Film in Inverted Solar Cells with Over 6200 Hours Photostability

open access: yesAdvanced Science, 2022
High‐performance perovskite solar cells (PSCs) depend heavily on the quality of perovskite films, which is closely related to the lattice distortion, perovskite crystallization, and interfacial defects when being spin‐coated and annealed on the substrate
Wenxuan Lv   +7 more
doaj   +1 more source

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