Results 231 to 240 of about 401,182 (321)

At the "Peak" of Vis-to-UV Upconversion: Clear Advantages of TIPS Substituents for a Biphenyl Annihilator. [PDF]

open access: yesJACS Au
Moghtader JA   +8 more
europepmc   +1 more source

Search for unstable sequential neutral and charged heavy leptons in e+e− annihilation at and 136 GeV

open access: green, 1996
M. Acciarri   +99 more
openalex   +2 more sources

XHEMTs on Ultrawide Bandgap Single‐Crystal AlN Substrates

open access: yesAdvanced Electronic Materials, EarlyView.
AlN/GaN/AlN XHEMTs [single‐crystal (“X‐tal”) high‐electron‐mobility transistors] are built on bulk AlN substrates with a 20 nm pseudomorphic GaN channel. This coherent epitaxial double heterostructure promises low‐defect, thermally efficient nitride electronics for next‐generation RF technology.
Eungkyun Kim   +6 more
wiley   +1 more source

Field manipulation of Weyl modes in an ideal Dirac semimetal. [PDF]

open access: yesNat Commun
Zhong J   +11 more
europepmc   +1 more source

Determining Exciton Diffusion Length in Organic Semiconductors: Unifying Macro‐ and Microscopic Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang   +12 more
wiley   +1 more source

Photosensitizing systems based on alginate aerogels and methylene blue for controlled release of dye for antimicrobial photodynamic therapy. [PDF]

open access: yesFront Chem
Shershnev I   +16 more
europepmc   +1 more source

Nonstoichiometry accommodation in SrTiO3thin films studied by positron annihilation and electron microscopy

open access: green, 2013
D. J. Keeble   +5 more
openalex   +2 more sources

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

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