Results 51 to 60 of about 6,562 (255)

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

АSTERISM AND CONSTELLATION: TERMINOLOGICAL DILEMMAS

Zbornik Radova: Geografski institut "Jovan Cvijić", 2017
In contemporary astronomical literature, there is no uniform definition of the term asterism. This inconsistency is the consequence of differences between traditional understanding of the term constellation, from the standpoint of the naked eye astronomy,
Zorica Prnjat, Milutin Tadić
doaj   +2 more sources

Utilization of Image Intensifiers in Astronomy

Acta Polytechnica, 2012
In this paper we present the properties of image intensifiers, used together with fast TV cameras for astronomical purposes within the MAIA project(Meteor Automatic Imager and Analyser, primarily focused on observing meteoric events with high time ...
S. Vítek, K. Fliegel, P. Páta, P. Koten   +3 more
doaj  

A New Nonparametric Test for Two Sample Multivariate Location Problem with Application to Astronomy

Journal of Statistical Theory and Applications (JSTA), 2019
This paper provides a nonparametric test for the identity of two multivariate continuous distribution functions when they differ in locations. The test uses Wilcoxon rank-sum statistics on distances between observations for each of the components and is ...
Soumita Modak, Uttam Bandyopadhyay
doaj   +1 more source

Organic Materials of Tomorrow: Horizons of Artificial Intelligence

Advanced Materials, EarlyView.
This review examines machine learning techniques accelerating the discovery of organic semiconductors by linking molecular structure to properties. Key methods include graph neural networks, generative models, and active learning. Applications to organic photovoltaics demonstrate practical impact.
Harold Mena, J. Terence Blaskovits, Kun‐Han Lin, Denis Andrienko   +3 more
wiley   +1 more source

Measuring the Hall Effect in Hysteretic Materials

Advanced Materials, EarlyView.
The authors highlight common pitfalls in measuring the Hall effect: in hysteretic magnets, improper data processing can create signals that look exotic but are not real. This Perspective explains the origin of these artifacts and presents practical measurement strategies that help researchers identify reliable Hall responses in complex magnetic ...
Jaime M. Moya, Anthony Voyemant, Sudipta Chatterjee, Scott B. Lee, Grigorii Skorupskii, Connor J. Pollak, Leslie M. Schoop   +6 more
wiley   +1 more source

"We make guilty of our disasters the sun, the moon, and the stars": a semantic mapping of Shakespeare's astronomical language

Anuario de Estudios Filológicos
Shakespeare’s language has been studied and analysed for centuries, including monographs on the most disparate semantic fields –such as botany, geography, commerce, etc. In this regard, astronomical language is no exception.
Gustavo A. Rodríguez Martín
doaj   +1 more source

Single Image Super-Resolution Using Compressive Sensing With a Redundant Dictionary

IEEE Photonics Journal, 2015
In medical imaging and astronomical observation, high-resolution (HR) images are urgently desired and required. In recent years, many researchers have proposed various ways to achieve the goal of image super-resolution (SR), ranging from simple linear ...
Yicheng Sun, Guohua Gu, Xiubao Sui, Yuan Liu, Chengzhang Yang   +4 more
doaj   +1 more source

Weak In‐Plane Ferromagnetism and Electronic Nematicity in the Distorted Triple‐Q Magnetic Phase of Co1/3TaS2

Advanced Materials, EarlyView.
Co1/3TaS2${\rm Co}_{1/3}{\rm TaS}_{2}$ hosts a triple‐Q noncoplanar antiferromagnetic state with coexisting Z3${\rm Z}_3$ electronic nematicity. We report rotational hysteresis observed in both magnetoresistance and magnetic torque, revealing strongly pinned in‐plane weak ferromagnetic moments in the triple‐Q phase and the magnetism‐driven nature of ...
Joonyoung Choi, Woonghee Cho, Pyeongjae Park, Woun Kang, Je‐Geun Park, Younjung Jo   +5 more
wiley   +1 more source

Specific Position of Halogen in Crystalline TADF Scintillators Enables Efficient Triplet Harvesting Through Vibrational Modulation of Spin–Orbit Coupling

Advanced Materials, EarlyView.
Specific ortho‐halogenation transforms crystalline TADF emitters into efficient organic scintillators. Fluorine reduces the effective singlet–triplet separation, while chlorine combines near‐degenerate excited states with vibrational modulation of spin–orbit coupling.
Illia E. Serdiuk, Michał Mońka, Artur Sikorski, Konrad J. Drozdowski, Mohanad S. Eid, Krzysztof Wisniewski, Damian Trzybiński, Marcin E. Witkowski, Winicjusz Drozdowski   +8 more
wiley   +1 more source