Results 51 to 60 of about 8,802 (281)

Stability Trend of Tilted Perovskites

open access: yes, 2018
Halide perovskites, with prototype cubic phase ABX3, undergo various phase transitions accompanied by rigid rotations of corner-sharing BX6 octahedra.
Shojaei, Fazel, Yin, Wan-Jian
core   +2 more sources

Capillary-Bridge Controlled Patterning of Stable Double-Perovskite Microwire Arrays for Non-toxic Photodetectors

open access: yesFrontiers in Chemistry, 2020
Single-crystalline lead halide perovskites with remarkable physical properties offer great potential in integrated optoelectronic applications but are restricted by their instability and toxicity.
Yueyang Pi   +11 more
doaj   +1 more source

Tin‐Based Chiral Perovskites with Second‐Order Nonlinear Optical Properties

open access: yesAdvanced Photonics Research, 2021
Metal halide perovskites have attracted extensive attention as the most favorable candidate for nonlinear optical (NLO) effects, due to their superior infrared transparency, flexible structures, and high laser‐induced damage thresholds.
Liangliang Zhao   +4 more
doaj   +1 more source

Breakdown of the static picture of defect energetics in halide perovskites: the case of the Br vacancy in CsPbBr3

open access: yes, 2019
We consider the Br vacancy in CsPbBr3 as a prototype for the impact of structural dynamics on defect energetics in halide perovskites (HaPs). Using first-principles molecular dynamics based on density functional theory, we find that the static picture of
Cohen, Ayala V.   +3 more
core   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

Anharmonicity and Ultralow Thermal Conductivity in Lead-Free Halide Double Perovskites [PDF]

open access: yesPhysical Review Letters, 2020
The lead-free halide double perovskite class of materials offers a promising venue for resolving issues related to toxicity of Pb and long-term stability of the lead-containing halide perovskites. We present a first-principles study of the lattice vibrations in Cs$_2$AgBiBr$_6$ , the prototypical compound in this class, and show that the lattice ...
Johan Klarbring   +3 more
openaire   +4 more sources

Low Temperature Optical Properties of Novel Lead‐Free Cs2NaFeCl6 Perovskite Single Crystals

open access: yesAdvanced Photonics Research, 2023
Lead‐free double perovskites have attracted much attention as possible alternatives to lead halide based perovskites in photovoltaic applications. However, to date only few double perovskites have been successfully employed in optoelectronic device ...
Melina Armer   +11 more
doaj   +1 more source

Tb3+ and Bi3+ Co-Doping of Lead-Free Cs2NaInCl6 Double Perovskite Nanocrystals for Tailoring Optical Properties

open access: yesNanomaterials, 2023
Lead halide perovskites have achieved remarkable success in various photovoltaic and optoelectronic applications, especially solar cells and light-emitting diodes (LEDs).
Yang Yu   +5 more
doaj   +1 more source

Excitonic States in Semiconducting Two-dimensional Perovskites

open access: yes, 2018
Hybrid organic/inorganic perovskites have emerged as efficient semiconductor materials for applications in photovoltaic solar cells with conversion efficiency above 20 \%.
Molina-Sánchez, Alejandro
core   +2 more sources

Surface Diffusion in SnTe‐PbTe Monolayer Lateral Heterostructures

open access: yesAdvanced Functional Materials, EarlyView.
The lateral heterostructures between 2D materials often suffer from the interdiffusion at the interfaces. Here, a surface diffusion mechanism is found to be dominating at the interfaces between semiconducting SnTe and PbTe monolayers. Atomically sharp interfaces can be achieved by suppressing this diffusion process. ABSTRACT The construction of complex
Jing‐Rong Ji   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy