Results 91 to 100 of about 48,281 (287)

Chemically‐Disordered Transparent Conductive Perovskites With High Crystalline Fidelity

Advanced Science, EarlyView.
Kinetically arrested, chemically disordered perovskite thin films exhibit exquisite crystalline fidelity, broad IR–UV transparency, and low resistivity, despite incorporating five mismatched 3d–5d cations, including Cr and W. This study unites electronic correlation, cation diversity, valence complexity, and disorder—enabling new transparent conductors
Saeed S. I. Almishal, Pat Kezer, Jacob T. Sivak, Yasuyuki Iwabuchi, Sai Venkata Gayathri Ayyagari, Saugata Sarker, Matthew Furst, Gerald Bejger, Billy Yang, Simon Gelin, Nasim Alem, Ismaila Dabo, Christina M. Rost, Susan B. Sinnott, Vincent Crespi, Venkatraman Gopalan, Roman Engel‐Herbert, John T. Heron, Jon‐Paul Maria   +18 more
wiley   +1 more source

Effective Field Theory of Relativistic Quantum Hall Systems

, 2014
Motivated by the observation of the fractional quantum Hall effect in graphene, we consider the effective field theory of relativistic quantum Hall states.
Golkar, Siavash, Roberts, Matthew M., Son, Dam Thanh   +2 more
core   +1 more source

High‐Performance Micro‐LED Displays via Etching‐Damage‐Free Pixelation Strategy for Multifunctional Integrated Applications

Advanced Science, EarlyView.
A novel etching‐damage‐free pixelation approach based on F ion implantation has been developed for the fabrication of micro/nano‐LED arrays with a pixel density reaching 25,400 ppi. This method offers the advantages of high resolution, high efficiency, and high brightness, making it highly suitable for applications in near‐eye displays, optical ...
Jinyu Ye, Wenjuan Su, Yibin Lin, Yuyan Peng, Xiongtu Zhou, Tailiang Guo, Jiade Yuan, Jie Sun, Qun Yan, Yongai Zhang, Chaoxing Wu   +10 more
wiley   +1 more source

Quantum Spin Hall Effect

, 2005
The quantum Hall liquid is a novel state of matter with profound emergent properties such as fractional charge and statistics. Existence of the quantum Hall effect requires breaking of the time reversal symmetry caused by an external magnetic field.
B. Andrei Bernevig, B. Halperin, J. E. Pikus, M. I. Dyakonov, N. Mott, Shou-Cheng Zhang   +5 more
core   +1 more source

Rollable Single‐Piece Thermoelectric Generators at Cryogenic Temperature Fabricated with High‐performance CNT Films Achieved by Doping Modulation

Advanced Science, EarlyView.
High power factor CNT of 10.5 mW m−1 K−2 at 298 K achieved by a developed material‐processing strategy exhibited a small variation by 20% in the temperature range of 100–298 K which surpassed most inorganic materials (25‐70%). The CNT film‐based single‐piece TEG showed exceptional ultra‐low temperature tolerance and great flexibility, which is ...
Zihan Zhu, Kuncai Li, Xin Hao, Xu Dai, Jing Wang, Fenfen Yin, Hong Wang   +6 more
wiley   +1 more source

Theories of the Fractional Quantum Hall Effect [PDF]

, 2002
This is an introduction to the microscopic theories of the FQHE. After a brief description of experiments, trial wavefunctions and the physics they contain are discussed. This is followed by a description of the hamiltonian approach, wherein one goes from the electrons to the composite fermions by a series of transformations.
openaire   +3 more sources

Stability of Organic Photovoltaics: From Root Causes to Advanced Analytical Techniques

Advanced Energy Materials, EarlyView.
This review explains the causes and mechanisms of degradation in organic photovoltaics (OPVs). It explores how various factors, including heat, light, oxygen, and inherent material properties, influence OPV stability. The study categorizes degradation pathways and analyzes their impact on device performance, providing insights into the fundamental ...
Yelim Choi, Dohyun Kim, Seung Un Ryu, Hangyeol Kim, Sungryong Kim, Minjun Kim, Taiho Park   +6 more
wiley   +1 more source

Excitons in the fractional quantum hall effect [PDF]

Physica B+C, 1984
Quasiparticles of charge 1/m in the Fractional Quantum Hall Effect form excitons, which are collective excitations physically similar to the transverse magnetoplasma oscillations of a Wigner crystal. A variational exciton wavefunction which shows explicitly that the magnetic length is effectively longer for quasiparticles than for electrons is proposed.
openaire   +2 more sources

Impact of Trap Depth on the Steady‐State and Transient Photoluminescence in Halide Perovskite Films

Advanced Energy Materials, EarlyView.
The presence of shallow traps in halide perovskites is frequently postulated by density functional theory calculations. This review studies the implications of recombination‐active shallow traps on steady‐state and transient recombination kinetics. How to identify shallow traps and how the depth of the traps and their density are reflected in different
Jürgen Hüpkes, Uwe Rau, Thomas Kirchartz   +2 more
wiley   +1 more source

Phase Diagram of the ν=5/2 Fractional Quantum Hall Effect: Effects of Landau-Level Mixing and Nonzero Width

Physical Review X, 2015
Interesting non-Abelian states, e.g., the Moore-Read Pfaffian and the anti-Pfaffian, offer candidate descriptions of the ν=5/2 fractional quantum Hall state.
Kiryl Pakrouski, Michael R. Peterson, Thierry Jolicoeur, Vito W. Scarola, Chetan Nayak, Matthias Troyer   +5 more
doaj   +1 more source