Results 101 to 110 of about 321,664 (276)

Room-Temperature Processing of Inorganic Perovskite Films to Enable Flexible Solar Cells

open access: yes, 2018
Inorganic lead halide perovskite materials have attracted great attention recently due to their potential for greater thermal stability compared to hybrid organic perovskites.
Bates, Matthew   +3 more
core   +1 more source

Halide segregation in mixed-halide perovskites

open access: yes, 2021
Metal halide perovskites have garnered a great deal of interest over the last few years due to their impressive – and rapidly increasing – performance as materials for solar cells. In particular, mixed-halide perovskites are essential for use in all-perovskite or perovskite-silicon tandem solar cells due to their tunable bandgap.
openaire   +2 more sources

A Universal Interfacial Dipole Strategy for Defect Suppression in Inverted Perovskite Solar Cells With Tunable Bandgaps

open access: yesAdvanced Functional Materials, EarlyView.
A 2D heterointerface with a two‐site anchor bridge suppresses nonradiative recombination at the perovskite/C₆₀ interface by reducing surface defects, elevating the Fermi level, and strengthening the electric field. This strategy enables efficient electron extraction, delivering 26.32% efficiency, 1.217 V Voc, excellent operational stability, and broad ...
Chaohui Li   +27 more
wiley   +1 more source

Tracking carrier and exciton dynamics in mixed-cation lead mixed-halide perovskite thin films

open access: yesCommunications Physics, 2022
Lead halide perovskites have many suitable features as materials for solar cells and a better understanding of the underlying physics will help engineer improved performance values.
Qing Chang   +9 more
doaj   +1 more source

Absolute energy level positions in tin- and lead-based halide perovskites [PDF]

open access: yesNature Communications, 2019
Metal halide perovskites are promising materials for future optoelectronic applications. One intriguing property, important for many applications, is the tunability of the band gap via compositional engineering.
S. Tao   +6 more
semanticscholar   +1 more source

Homogenous FACsPbI3 Perovskite Solar Cells Enabled by a Seed‐Facilitated Cation Exchange Strategy

open access: yesAdvanced Functional Materials, EarlyView.
A novel seed‐facilitated cation exchange strategy is designed for homogenous FACsPbI3 perovskites using the biomass‐derived solvent γ‐valerolactone. Pre‐deposited 0D Cs4PbI6 seeds induce rapid nucleation and efficient cation exchange, producing a uniform FA–Cs distribution and significantly reducing defect density, enabling high‐performance and stable ...
Meng Ren   +10 more
wiley   +1 more source

Dimensionality Engineering: A Pathway to Ferroelectric Halide Perovskites

open access: yesSmall Structures
Metal halide perovskites have emerged as a versatile materials platform that uniquely combines semiconducting and ferroelectric functionalities, enabled by their exceptional structural and chemical tunability.
Hyeongyu Gim   +6 more
doaj   +1 more source

A-Site Cation Engineering for Efficient Blue-Emissive Perovskite Light-Emitting Diodes

open access: yesEnergies, 2020
Metal halide perovskites have been investigated for the next-generation light-emitting materials because of their advantages such as high photoluminescence quantum yield (PLQY), excellent color purity, and facile color tunability.
Jong Hyun Park   +5 more
doaj   +1 more source

Exploring Pb‐Chelation Chemistry in the Crystallization Dynamics of Halide Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
A mechanism of how Pb‐chelation chemistry governs coordination geometry and initial nucleation behavior at the precursor level of halide perovskite, by regulating the deprotonation state of a chelating additive, is elucidated. This allows for innovative reaction‐system design principles that promote coherent growth while suppressing defect formation in
Byeong Jun Kim   +13 more
wiley   +1 more source

Chiroptical Activities of Low‐Dimensional Lead‐Free Chiral Halide Perovskites with White‐Light Emission

open access: yesSmall Science
Chiral halide perovskites have attracted considerable attention due to their intrinsic chirality‐induced circular dichroism (CD), circularly polarized luminescence (CPL), and spin selectivity.
Min‐Han Tsai   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy