Results 71 to 80 of about 8,891 (213)

Quantitation of 11 alkylamines in atmospheric samples: separating structural isomers by ion chromatography [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
Amines are important drivers in particle formation and growth, which have implications for Earth's climate. In this work, we developed an ion chromatographic (IC) method using sample cation-exchange preconcentration for separating and quantifying the ...
B. K. Place   +4 more
doaj   +1 more source

Resistless high resolution optical lithography on silicon [PDF]

open access: yes, 1995
In this letter, we report on the high resolution patterning of a silicon surface without using a resist layer. A hydrogen passivated silicon surface is chemically modified by illumination with ultraviolet light (UV, λ=350.7 nm) in air.
Kramer, N.   +3 more
core   +2 more sources

Positive Aging‐Free Quantum Dot Light‐Emitting Diodes Enabled by Single‐Source Chloride‐Doped ZnMgO Electron Transport Layers

open access: yesSmall, EarlyView.
Single‐source chloride doping of ZnMgO electron‐transport layers (ETLs) intrinsically suppresses oxygen‐vacancy traps, eliminating storage‐driven positive aging in quantum dot light‐emitting diodes. Devices deliver day‐0 peak external quantum efficiency and longer operational lifetimes, while transport and interfacial photoluminescence remain time ...
Jaeyeop Lee   +10 more
wiley   +1 more source

Historical trends in iodine and selenium in soil and herbage at the Park Grass experiment, Rothamsted Research, UK [PDF]

open access: yes, 2017
Long term trends in iodine and selenium retention in soil, and uptake by herbage, were investigated in archived samples from the Park Grass Experiment, initiated in 1856 at Rothamsted, UK.
Biederbeck   +55 more
core   +2 more sources

Hybrid Liquid Metal Cathode Enables High‐Performance Intrinsically Stretchable OLEDs

open access: yesAdvanced Materials, Volume 38, Issue 25, 4 May 2026.
We report a hybrid liquid metal (Hyb‐LM) cathode engineered via selective rupture of liquid metal particles (LMPs), forming a bilayer architecture with a surface liquid metal (LM) layer and underlying LMP layer, which has benefits of both LM and LMPs.
Wonbeom Lee   +9 more
wiley   +1 more source

Nanometer lithography on silicon and hydrogenated amorphous silicon with low-energy electrons [PDF]

open access: yes, 1995
We report the local oxidation of hydrogen terminated silicon (Si) surfaces induced with the scanning-tunneling microscope (STM) operating in air and by a beam of free low-energy electrons.
Birk, H.   +4 more
core   +4 more sources

The Origin of Efficiency in III‐Nitride Micro‐Light‐Emitting Diodes

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
The images show panchromatic cathodoluminescence of III‐V materials, which reveal that AlGaInP red wafers, having fewer defects, support longer carrier diffusion lengths. Meanwhile, the density of defects increases with longer emission wavelengths in the InGaN system, illustrating how generated carriers pass through the material and how defects limit ...
Jeong‐Hwan Park   +11 more
wiley   +1 more source

Facile synthesis of C, N-TiO2 nanorods via layered -TMAH interlaminar bonding interaction and their enhanced catalytic performance

open access: yesMaterials Research Express, 2020
A green and efficient photocatalyst based on C and N co-doped titanium based nanorods (NRs) was prepared by facile hydrothermal synthesis and interlaminar bonding interaction between layered ${{\rm{Ti}}}_{3}{{{\rm{O}}}_{7}}^{2-}$ and tetramethylammonium ...
Ruikai Wang   +9 more
doaj   +1 more source

Photonic molecules for improving the optical response of macroporous silicon photonic crystals for gas sensing purposes [PDF]

open access: yes, 2018
In this paper, we report the benefits of working with photonic molecules in macroporous silicon photonic crystals. In particular, we theoretically and experimentally demonstrate that the optical properties of a resonant peak produced by a single photonic
Cardador Maza, David   +2 more
core   +2 more sources

Life‐Cycle Assessment of Printed Electronic Components ‐ Case Study for Organic Electrochemical Transistors

open access: yesAdvanced Electronic Materials, Volume 12, Issue 9, 11 May 2026.
This tutorial introduces a practical framework for implementing early‐stage Life‐Cycle Assessment (LCA) in flexible and printed electronics. Using organic electrochemical transistors (OECTs) as a case study, the modular Process‐of‐Record and open‐access inventory provides a rich resource adaptable to a plethora of technologies in printed electronics ...
Laura Teuerle   +6 more
wiley   +1 more source

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