Results 61 to 70 of about 2,073,401 (194)

A Simple Model for Extracting Astrophysics from Black Hole Images

The Astrophysical Journal
The Event Horizon Telescope (EHT) is providing unprecedented high-resolution images of supermassive black holes. These images are fundamentally related to properties of the luminous accretion disks, since black holes themselves produce no light.
Alexandra G. Guerrero, Daniel E. Holz
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

The weak cosmic censorship conjecture in hairy Kerr black holes

European Physical Journal C: Particles and Fields
The weak cosmic censorship conjecture, since its proposal, has always been a controversial hypothesis, but its significance in astrophysics is undeniable.
Lai Zhao, Meirong Tang, Zhaoyi Xu
doaj   +1 more source

Forward‐Biased Perovskite Photodiodes for In‐Sensor Optical Change Sensing

Advanced Functional Materials, EarlyView.
A forward‐biased perovskite photodiode is introduced as an in‐sensor analog preprocessing unit that uses current balancing between photocurrent and injection current to generate optical changes relative to programmable optical reference levels. The device directly converts reference‐relative optical changes into bipolar current signals, enabling sensor‐
Eungseon Yeon, Je‐Jun Lee, Somin Yun, Sangin Hahn, Chanhyeok Kim, Jinsoo Park, Jung Pyo Hong, Seong‐Jun Han, Jung Woo Kim, Jeong Hwan Lee, Subin Jeon, Youngmin Kim, Gunuk Wang, Hanul Min, Do Kyung Hwang   +14 more
wiley   +1 more source

Towards multi-center AdS black holes [PDF]

, 2022
openIn the last decades interest in black holes with an anti-de Sitter asymptotic behaviour has been renewed, mainly thanks to the possibilities opened by the gauge/gravity correspondence.
GIACOBBO, MARIO
core  

Photoinduced Charge Separation in Single‐Component Squaraine Films: The Key Role of Electrostatic Disorder

Advanced Functional Materials, EarlyView.
ABSTRACT Neat films of organic dyes are an interesting technological platform for solar cells and photodetectors. Recently, the conventional biphasic bulk‐heterojunction paradigm for photoinduced charge separation was challenged by the observation that charge carriers can be photogenerated in single‐component materials. A comprehensive experimental and
Davide Giavazzi, João Pedro Ferreira Assunção, Michael Bauer, Matthias Diethelm, Wei‐Hsu Hu, Mohammad Jafarpour, Roland Widmer, Antonia Neels, Dimitrios Sapalidis, Bruno F. B. Silva, Roland Hany, Frank Nüesch, Anna Painelli   +12 more
wiley   +1 more source

Strong gravitational lensing effects around rotating regular black holes

Physics Letters B
In this letter, we investigate the strong gravitational lensing effects around two classes of rotating regular black holes, which behave as non-singular Minkowski core at the center.
Ming-Yu Guo, Meng-He Wu, Hong Guo, Xiao-Mei Kuang, Fu-Yao Liu   +4 more
doaj   +1 more source

Throat quantization of the Schwarzschild-Tangherlini(-AdS) black hole

EPJ Web of Conferences, 2018
By the throat quantization pioneered by Louko and Mäkelä, we derive the mass and area/entropy spectra for the Schwarzschild-Tangherlini-type asymptotically flat or AdS vacuum black hole in arbitrary dimensions. Using the WKB approximation for black holes
Maeda Hideki
doaj   +1 more source

Microcanonical Description of (Micro) Black Holes

Entropy, 2011
The microcanonical ensemble is the proper ensemble to describe black holes which are not in thermodynamic equilibrium, such as radiating black holes.
Benjamin Harms, Roberto Casadio
doaj   +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