Results 61 to 70 of about 45,325 (317)

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

Advanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk, Danis I. Badrtdinov, Kenji Watanabe, Takashi Taniguchi, Cyrus E. Dreyer, Malte Rösner, Maciej Koperski   +6 more
wiley   +1 more source

High-throughput screening of stable and efficient double inorganic halide perovskite materials by DFT

Scientific Reports, 2022
Perovskite solar cells have become the most promising third-generation solar cells because of their superior physical–chemical properties and high photoelectric conversion efficiency.
Xinfeng Diao, Yongxin Diao, Yanlin Tang, Gangling Zhao, Qinzhong Gu, Yu Xie, Yebai Shi, Ping Zhu, Liang Zhang   +8 more
doaj   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Deformation-Induced Mechanical Instabilities at the Core-Mantle Boundary

, 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; id_orcid, Yuen, David A., David A. Yuen, Tracy Rushmer, Petford, Nick, Yuen, D.A., Rushmer, Tracy, Nick Petford   +7 more
core   +1 more source

Emerging Characterizing Techniques in the Fine Structure Observation of Metal Halide Perovskite Crystal

Crystals, 2018
Driven by its appealing application in the energy harvesting industry, metal halide perovskite solar cells are attracting increasing attention from various fields, such as chemistry, materials, physics, and energy-related industries.
Kongchao Shen, Jinping Hu, Zhaofeng Liang, Jinbang Hu, Haoliang Sun, Zheng Jiang, Fei Song   +6 more
doaj   +1 more source

Extremely Long Electron Lifetime in Spontaneously Passivated Polycrystalline Perovskite Layers via Illumination‐Assisted Trap Filling

Advanced Functional Materials, EarlyView.
ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura, Ryuzi Katoh, Takurou N. Murakami   +2 more
wiley   +1 more source

Efficient All-Perovskite White Light-Emitting Diodes Made of In Situ Grown Perovskite-Mesoporous Silica Nanocomposites

, 2023
Metal halide perovskite quantum dots (QDs) have emerged as potential materials for high brightness, wide color gamut, and cost-effective backlight emission due to their high photoluminescence quantum yields, narrow emission linewidths, and tunable ...
Bian, Zhenfeng, Xiaoyu Zhang, Meng Fan, Jinpeng Huang, Liu, Nan, Liancheng Wang, Turyanska, Lyudmila, Wang, Liancheng, Fan, Meng, Zhang, Xiaoyu, Chunyang Xu, Yang, Xuyong, Zhang, Chengxi, Xuyong Yang, Huang, Jinpeng, Chengxi Zhang, Lyudmila Turyanska, Zhenfeng Bian, Xu, Chunyang, Li, Hongbo, Nan Liu, Hongbo Li   +21 more
core   +1 more source

RbCa2Nb3O10 from X-ray powder data

Acta Crystallographica Section E, 2009
Rubidium dicalcium triniobate(V), RbCa2Nb3O10, has been synthesized by solid-state reaction and its crystal structure refined from X-ray powder diffraction data using Rietveld analysis.
Zhen-Hua Liang, Kai-Bin Tang, Qian-Wang Chen, Hua-Gui Zheng   +3 more
doaj   +1 more source

History and challenges of barium titanate: Part II [PDF]

Science of Sintering, 2008
Barium titanate is the first ferroelectric ceramics and a good candidate for a variety of applications due to its excellent dielectric, ferroelectric and piezoelectric properties.
Vijatović M.M., Bobić J.D., Stojanović B.D.   +2 more
doaj   +1 more source

Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights

Advanced Functional Materials, EarlyView.
This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He, Wenbo Wang, Simon Schweidler, Yanjiao Ma, Ben Breitung, Torsten Brezesinski   +5 more
wiley   +1 more source