Results 31 to 40 of about 2,207,935 (300)

Recent Approaches to Controlling the Nanoscale Morphology of Polymer-Based Bulk-Heterojunction Solar Cells

open access: yesEnergies, 2013
The need for clean, inexpensive and renewable energy has increasingly turned research attention towards polymer photovoltaic cells. However, the performance efficiency of these devices is still low in comparison with silicon-based devices.
Abdulra'uf Lukman Bola   +3 more
doaj   +1 more source

Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics

open access: yesCuadernos de Investigación Geográfica, 2020
Between 2008 and 2016 the Morenas Coloradas rock glacier in the Central Andes of Mendoza showed different thermal characteristics at three monitoring sites in active layers, Balcón I (3560 m a.s.l.), Balcón I Superior (3590 m a.s.l.) and Balcón II (3770 ...
D. Trombotto-Liaudat, E. Bottegal
doaj   +1 more source

Thermal variations of the active layer in Fildes Peninsula, King George Island, Maritime Antarctica [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2023
This work aimed to characterize the variation in the thermal regime of the active layer in a permafrost area on Fildes Peninsula, Antarctica, and relate this variability with meteorological data between 2014 and 2016. The monitoring site was installed to
ANDRÉ M. DE ANDRADE   +6 more
doaj   +1 more source

Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia

open access: yesLand, 2021
Climate change effects, such as melting of glaciers and sea ice in response to rising temperatures, may lead to an increase in global water availability and thus in precipitation.
Aleksandr Zhirkov   +3 more
doaj   +1 more source

Seasonal InSAR Displacements Documenting the Active Layer Freeze and Thaw Progression in Central-Western Spitsbergen, Svalbard

open access: yesRemote Sensing, 2021
In permafrost areas, the active layer undergoes seasonal frost heave and thaw subsidence caused by ice formation and melting. The amplitude and timing of the ground displacement cycles depend on the climatic and ground conditions. Here we used Sentinel-1
Line Rouyet   +5 more
doaj   +1 more source

Antimony doping of Si layers grown by solid-phase epitaxy [PDF]

open access: yes, 1976
We report here that layers of Si formed by solid-phase epitaxial growth (SPEG) can be doped intentionally. The sample consists initially of an upper layer of amorphous Si (~1 µm thick), a very thin intermediate layer of Sb (nominally 5 Å), and a thin ...
Blattner, Richard J.   +7 more
core   +1 more source

Differential Hall Effect Metrology for Electrical Characterization of Advanced Semiconductor Layers

open access: yesMetrology
Semiconductor layers employed in fabricating advanced node devices are becoming thinner and their electrical properties are diverging from those established for highly crystalline standards.
Bulent M. Basol, Abhijeet Joshi
doaj   +1 more source

Efficient bulk heterojunction photovoltaic devices based on modified PCBM

open access: yesNanotechnology Reviews, 2015
Organic bulk heterojunction solar cells are a promising candidate for low-cost next-generation photovoltaic systems. In bulk heterojunction polymer solar cells, conjugated polymers and fullerene derivatives [6,6]-phenyl-C61-butyric acid methyl ester ...
Sharma Shyam S.   +2 more
doaj   +1 more source

Plasmonic modulator optimized by patterning of active layer and tuning permittivity [PDF]

open access: yes, 2012
We study an ultra-compact plasmonic modulator that can be applied in photonic integrated circuits. The modulator is a metal-insulator-metal waveguide with an additional ultra-thin layer of indium tin oxide (ITO). Bias is applied to the multilayer core by
Andrei V. Lavrinenko   +48 more
core   +2 more sources

Activated layered magnetism from bulk TiN [PDF]

open access: yesPhysical Review Materials, 2019
17 pages, 8 figures, 2 ...
Chiung-Yuan Lin   +3 more
openaire   +2 more sources

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