Results 61 to 70 of about 1,456,910 (261)

B‑Site Columnar-Ordered Halide Double Perovskites A₂B(II)′_0.5B(II)X₅ with B(II)′/Vacancy Disordering

, 2021
B-site rock-salt-ordered halide double perovskites have attracted significant attention for optoelectronic applications such as light-emitting diodes and photodetectors.
Sanlue Hu (7305842), Guoqi Ji (4714449), Chuanzhou Han (11022503), Ruixiang Mi (11357145), Ke-Zhao Du (2098294), Pengfei Fu (5793167), Zewen Xiao (1261938)   +6 more
core   +3 more sources

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

Frontiers 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, Jinjin Zhao, Jinjin Zhao, Yingjie Zhao, Yingjie Zhao, Jiangang Feng, Chi Zhang, Hanfei Gao, Hanfei Gao, Yuchen Wu, Lei Jiang, Lei Jiang   +11 more
doaj   +1 more source

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

Advanced 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, Patrick Dörflinger, Andreas Weis, Carsten Büchner, Andreas Gottscholl, Julian Höcker, Kilian Frank, Lukas Nusser, Maximilian T. Sirtl, Bert Nickel, Thomas Bein, Vladimir Dyakonov   +11 more
doaj   +1 more source

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

Nanomaterials, 2023
Lead halide perovskites have achieved remarkable success in various photovoltaic and optoelectronic applications, especially solar cells and light-emitting diodes (LEDs).
Yang Yu, Wei Zhou, Cheng Li, Peigeng Han, Hui Li, Kun Zhao   +5 more
doaj   +1 more source

From Bulk to Colloidal Nanocrystals: Top‐Down Synthesis of Highly Luminescent Cs2ZrCl6:Te4+ Double Perovskite Nanocrystals for X‐Ray Imaging

Advanced Functional Materials, EarlyView.
Top‐down ultrasonication produces highly emissive Cs2ZrCl6:Te4+ nanocrystals (NCs) with a PLQY of 65%, which is higher compared to that of the NCs synthesized by typical bottom‐up hot‐injection synthesis. The colloidal Cs2ZrCl6:Te4+ NCs have been found to be potential candidates for x‐ray scintillation imaging.
Yang Liu, Ye Wu, Hongpeng Liu, Cong Cui, Iago López‐Fernández, Nadesh Fiuza‐Maneiro, Sergio Gómez‐Graña, Yingjun Chai, Zhicheng Wang, Yusheng Wu, Laishi Li, Xiaoming Li, Lakshminarayana Polavarapu   +12 more
wiley   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Computational Approach to the Study of Photon Radiation Shielding Parameters of Perovskite Ceramics

Iraqi Journal of Physics
This work investigates the photon radiation shielding efficiency of selected perovskite ceramics, halide-based double perovskites and organic-inorganic halide perovskites, using computational modeling across the photon energy range 0.015–15 MeV.
Muhammed Abdurraheem, Sunday Ajani, Wasiu Yahya, Godwin Egbeyale   +3 more
doaj   +1 more source

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

Physical 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, Olle Hellman, Igor A. Abrikosov, Sergei I. Simak   +3 more
openaire   +4 more sources

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

Advanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin, Stav Rahmany, Anat Shvets, Hadar Shema, Elad Gross, Ido Hadar, Lioz Etgar   +6 more
wiley   +1 more source

Ligand Assisted Epitaxial Growth of CsPbBr3 Microcrystal Resonators With Record ‐Low Lasing Thresholds

Advanced Functional Materials, EarlyView.
Solution‐based ligand‐assisted epitaxial growth (LAEG) yields high‐quality CsPbBr3 microcrystals on different substrates with superior morphology, passivated surfaces, and high photoluminescence quantum yield. These robust micro‐resonators achieve record‐low room‐temperature lasing thresholds of 7.2 kW·cm−2 and maintain operational stability up to 90 ...
Shuyu Zhou, Viktor Rehm, Zijian Peng, Tomáš Hrbek, Anastasia Barabash, Christoph J. Brabec, Berke Özyalin, Yufei Han, Johannes Böhmer, Johannes Will, Erdmann Spiecker, Klaus Götz, Tobias Unruh, Jędrzej Korczak, Tomasz Story, Felix Hilpert, Olaf Brummel, Jörg Libuda, Iva Matolínová, Wolfgang Heiss   +19 more
wiley   +1 more source