Results 41 to 50 of about 259,290 (345)

Dissociation of singlet excitons dominates photocurrent improvement in high-efficiency non-fullerene organic solar cells

open access: yesNano Research Energy
In organic solar cells, the singlet and triplet excitons dissociate into free charge carriers with different mechanisms due to their opposite spin state. Therefore, the ratio of the singlet and triplet excitons directly affects the photocurrent.
Qicong Li   +9 more
doaj   +1 more source

Concurrence vs. purity: Influence of local channels on Bell states of two qubits

open access: yes, 2005
We analyze how a maximally entangled state of two-qubits (e.g., the singlet $\psi_s$) is affected by action of local channels described by completely positive maps $\cE$ .
J. Eisert   +3 more
core   +1 more source

A binary mixture of spinor atomic Bose-Einstein condensates [PDF]

open access: yes, 2009
We study the ground state and classify its phase diagram for a mixture of two spin-1 condensates in the absence of external magnetic (B-) field according to atomic parameters for intra- and inter-species spin exchange coupling and singlet pairing ...
Xu, Z. F., You, L., Zhang, Yunbo
core   +1 more source

The Singlet States of Molecular Oxygen [PDF]

open access: yesJournal of Chemical Education, 2004
Although the purpose of the article “The Visible Spectrum of Liquid Oxygen in the General Chemistry Laboratory” is an analysis of the two-molecules–one-photon absorption spectrum of oxygen, it nevertheless assigns arrangements of the electrons in an energy diagram to the two singlet states of molecular oxygen that do not seem to be correct.
Jean-Pierre Puttemans, Georges Jannes
openaire   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

Reversible gating of singlet fission by tuning the role of a charge-transfer state

open access: yesNature Communications
Stimulus-responsive triplet excited states and multiexcitonic logic gates have garnered increasing interest. Singlet fission is an efficient multiple exciton generation process, in which one singlet converts into two triplets. Singlet fission is, however,
Yifan Bo   +6 more
doaj   +1 more source

Analysis of the Ξ‾ccΞcc hexaquark molecular state with the QCD sum rules

open access: yesPhysics Letters B, 2021
In this work, we construct the color-singlet-color-singlet type six-quark pseudoscalar current to investigate the Ξ‾ccΞcc hexaquark molecular state with the QCD sum rules, the predicted mass MX∼7.2GeV supports assigning the X(7200) to be the Ξ‾ccΞcc ...
Zhi-Gang Wang
doaj   +1 more source

Correlated electron transport through double quantum dots coupled to normal and superconducting leads

open access: yes, 2010
We study Andreev transport through double quantum dots connected in series normal and superconducting (SC) leads, using the numerical renormalization group.
A. C. Hewson   +4 more
core   +1 more source

The O(N) vector model in the large N limit revisited: multicritical points and double scaling limit [PDF]

open access: yes, 1996
The multicritical points of the $O(N)$ invariant $N$ vector model in the large $N$ limit are reexamined. Of particular interest are the subtleties involved in the stability of the phase structure at critical dimensions.
Ambjørn   +37 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

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