Results 71 to 80 of about 187,675 (250)
Selective Area Growth and Structural Characterization of GaN Nanostructures on Si(111) Substrates
Crystals, 2018 Selective area growth (SAG) of GaN nanowires and nanowalls on Si(111) substrates with AlN and GaN buffer layers grown by plasma-assisted molecular beam epitaxy was studied.
Alexana Roshko +4 more
doaj +1 more source
A view of part of the NIST stone wall
, 2017 A view of part of the NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top.
National Institute of Standards and Technology and Technology
core
Advanced Science, EarlyView.Li2HfF6 contains two spectroscopically distinct self‐trapped excitons (STEs): intrinsic STE1 and redshifted, K‐associated STE2. Potassium incorporation stabilizes STE2, which selectively sensitizes Mn4+ red emission. This work uncovers the often‐overlooked role of trace K impurities, demonstrating impurity modulation as an effective strategy for tuning
Menuka Adhikari +8 more
wiley +1 more source
Close-up of a stone sample set in the NIST stone wall
, 2017 The NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging
National Institute of Standards and Technology and Technology
core
Advanced Electronic Materials, EarlyView.ABSTRACT Magnetic 2‐dimensional (2D) van der Waals (vdW) materials have garnered tremendous attention. The vdW ferromagnet Fe5Ge1Te2 has a Curie temperature Tc of ≈ 270 K, which is tailorable by tuning the stoichiometry and the Fe deficiency to reach room temperature.
Chih‐Yu Lee +7 more
wiley +1 more source
A close-up of sandstone from Marquette, Michigan, part of the NIST stone wall
, 2017 This image shows a close-up of red and gray sandstone from Marquette, Michigan. It is part of the NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick
National Institute of Standards and Technology and Technology
core +1 more source
A close-up of a stone sample set in the NIST stone wall
, 2017 The NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging
National Institute of Standards and Technology and Technology
core
Advanced Electronic Materials, EarlyView.This study investigates polymer requirements for pairing with high‐efficiency non‐fullerene acceptors (NFA) in organic photovoltaics by comparing three polymer blends across varied phase morphologies. The generation of free charges is driven by fast transport‐assisted charge separation combined with slow intrinsic recombination.
Yufei Zhong +9 more
wiley +1 more source
Thermoradiative Diodes Using Black Phosphorus van der Waals Materials
Advanced Energy Materials, EarlyView.We demonstrate thermoradiative diodes based on black phosphorus (bP${\rm bP}$)/molybdenum disulfide (MoS2$MoS_2$) van der Waals heterojunctions which generate power by exchanging photons with a colder environment. The bandgap of black phosphorus is well positioned to exchange photons with outer space through the mid‐wave atmospheric window.
Yuchen Sun +13 more
wiley +1 more source
Monolithic Silicon Photodetector - Detector of Ionizing Radiation Based on Functional Integrated MOS Structures [PDF]
Журнал нано- та електронної фізики, 2014 This paper describes the principle of operation, construction, architecture and fabrication of a new type of monolithic silicon coordinate photodetector - detector of optical and ionizing radiation (MSCP) on the basis of functional integrated MOS ...
S.A. Legotin +8 more
doaj