Results 201 to 210 of about 483,229 (323)

Unlocking Photodetection Mode Switching from a Simple Lateral Design

open access: yesAdvanced Functional Materials, EarlyView.
A simple lateral 2D perovskite photodetector capable of switching among transient, continuous, and dual transient/continuous photoresponse modes is achieved by integrating photoconductive effects with capacitive coupling from the SiO2/Si substrate. Such light‐programmable photodetection mode switching enables triple‐channel information transmission and
Zijun (June) Yong   +10 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

BARRIERS AND FACILITATORS TO PROVIDING COVID-19 CONTACT TRACING INFORMATION AMONG ADULT NIGERIANS. [PDF]

open access: yesAfr J Infect Dis
Chihurumnanya OL   +5 more
europepmc   +1 more source

Contact Tracing is Associated with Lower COVID-19 Case Fatality Rates: Evidence from 40 countries

open access: green, 2020
Abdullah Yalaman   +3 more
openalex   +1 more source

Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces

open access: yesAdvanced Functional Materials, EarlyView.
Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song   +6 more
wiley   +1 more source

Lessons Learned from Community Contact Tracing of Women Disengaged from an Urban Prevention of Mother-to-Child Transmission Program in Uganda. [PDF]

open access: yesMatern Child Health J
Twinomuhwezi E   +11 more
europepmc   +1 more source

COVID-19: digital contact tracing technologies and ethical challenges

open access: diamond, 2020
Jayakrishnan Thayyil   +2 more
openalex   +2 more sources

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