Results 41 to 50 of about 971,018 (354)

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

Access to arts education in America: the availability of visual art, music, dance, and theater courses in U.S. high schools

open access: yesArts education policy review, 2020
The purpose of this study was to understand the contextual, school-level factors associated with the availability of arts education courses in the high schools of the United States. In the study, course offerings for a nationally representative sample of
Kenneth Elpus
semanticscholar   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

open access: yesAdvanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang   +7 more
wiley   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

open access: yesAdvanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra   +8 more
wiley   +1 more source

Nanban Art and its Globality: A Case Study of the New Spanish Mural The Great Martyrdom of Japan in 1597

open access: yesHistoria y Sociedad, 2019
Traditionally, nanban art has been seen as a simple product of exchanges between Japan, Portugal and Spain. The historiography tends to solely focus on artistic contributions of the Society of Jesus due to the foundation of a painting school in Japan ...
Rie Arimura
doaj   +1 more source

High‐Rate FA‐Based Co‐Evaporated Perovskites: Understanding Rate Limitations and Practical Considerations to Overcome Their Impact

open access: yesAdvanced Functional Materials, EarlyView.
Vacuum‐based deposition is promising for perovskite solar cells to be successfully commercialized. However, co‐evaporation, the most common vapor phase deposition technique, suffers from very low deposition rates. In this work, we reveal that high deposition rates can lead to carbon flakes depositing into the perovskite absorber layers due to material ...
Thomas Feeney   +13 more
wiley   +1 more source

How can the science of complexity help young people realize their talents and choose their future?

open access: yesProceedings (European Academy of Sciences and Arts)
We live in a world of great discoveries in all sciences, but also serious threats to our very existence. This is, of course, not the first nor the last time we will be faced with such challenges, but every time the stakes are higher.
Anastasios Bountis
doaj   +1 more source

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