Results 91 to 100 of about 10,146 (239)

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Charge redistribution and interlayer coupling in twisted bilayer graphene under electric fields

, 2011
We investigate the electronic density redistribution of rotated bilayer graphene under a perpendicular electric field, showing that the layers are actually coupled even for large angles.
Brey, L., Chico, L., Morell, E. Suárez, Vargas, P.   +3 more
core   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Corrugation-driven symmetry breaking in magic-angle twisted bilayer graphene

Communications Physics, 2022
Twisted bilayer graphene exhibits superconductivity and other electronic phenomena such as flat bands at specific orientations between the layers; however, the origins of the resulting electronic structure are complex.
Tawfiqur Rakib, Pascal Pochet, Elif Ertekin, Harley T. Johnson   +3 more
doaj   +1 more source

Giant oscillations in a triangular network of one-dimensional states in marginally twisted graphene

, 2019
The electronic properties of graphene superlattices have attracted intense interest that was further stimulated by the recent observation of novel many-body states at "magic" angles in twisted bilayer graphene (BLG).
Bandurin, D. A., Berdyugin, A. I., Edgar, J. H., Fal'ko, V. I., Geim, A. K., Grigorieva, I. V., Guinea, F., Kim, M., Kuang, W., Kumar, R. Krishna, Kumaravadivel, P., Liu, S., Morozov, S. V., Tsim, B., Xu, S. G.   +14 more
core   +1 more source

Ubiquitous Antiparallel Domains in 2D Hexagonal Boron Nitride Uncovered by Interferometric Nonlinear Optical Imaging

Advanced Materials, EarlyView.
Interferometric second‐harmonic generation (SHG) imaging reveals the ubiquitous formation of antiparallel domains in CVD‐grown 2D hexagonal boron nitride. By resolving lattice orientation and SHG phase, hidden domain structures and disorder become visible over large areas. The SHG intensity quantitatively tracks crystalline quality across growth routes,
Yeri Lee, Juseung Oh, Kyung Yeol Ma, Seung Jin Lee, Eui Young Jung, Yani Wang, Kenji Watanabe, Takashi Taniguchi, Hailin Peng, Hiroki Ago, Ki Kang Kim, Hyeon Suk Shin, Sunmin Ryu   +12 more
wiley   +1 more source

Moiré band structure engineering using a twisted boron nitride substrate

Nature Communications
Applying long wavelength periodic potentials on quantum materials has recently been demonstrated to be a promising pathway for engineering novel quantum phases of matter.
Xirui Wang, Cheng Xu, Samuel Aronson, Daniel Bennett, Nisarga Paul, Philip J. D. Crowley, Clément Collignon, Kenji Watanabe, Takashi Taniguchi, Raymond Ashoori, Efthimios Kaxiras, Yang Zhang, Pablo Jarillo-Herrero, Kenji Yasuda   +13 more
doaj   +1 more source

Hetero-site nucleation for growing twisted bilayer graphene with a wide range of twist angles

Nature Communications, 2021
The synthesis of twisted bilayer graphene with controllable angles is challenging. Here, the authors devise a chemical vapor deposition approach using a hetero-site nucleation strategy that affords twist angles ranging from 0° to 30°.
Luzhao Sun, Zihao Wang, Yuechen Wang, Liang Zhao, Yanglizhi Li, Buhang Chen, Shenghong Huang, Shishu Zhang, Wendong Wang, Ding Pei, Hongwei Fang, Shan Zhong, Haiyang Liu, Jincan Zhang, Lianming Tong, Yulin Chen, Zhenyu Li, Mark H. Rümmeli, Kostya S. Novoselov, Hailin Peng, Li Lin, Zhongfan Liu   +21 more
doaj   +1 more source

Evolution of Interlayer Coupling in Twisted MoS2 Bilayers

, 2014
Van der Waals (vdW) coupling is emerging as a powerful method to engineer and tailor physical properties of atomically thin two-dimensional (2D) materials.
Cao, Ting, Jin, Chenhao, Liu, Kaihui, Louie, Steve G., Qiu, Diana, Wang, Feng, Yang, Peidong, Zettl, Alex, Zhang, Liming, Zhou, Qin   +9 more
core   +2 more sources

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source