Results 81 to 90 of about 702,295 (333)

Simulation study on the active layer thickness and the interface of a-IGZO-TFT with double active layers

open access: yesFrontiers of Optoelectronics, 2014
In this paper, ATLAS 2D device simulator of SILVACO was used for device simulation of inverted- staggered thin film transistor using amorphous indium gallium zinc oxide as active layer (a-IGZO-TFT) with double active layers, based on the density of states (DOS) model of amorphous material.
Xiaoyue Li, Sheng Yin, Dong Xu
openaire   +1 more source

Near‐surface permafrost extent and active layer thickness characterized by reanalysis/assimilation data

open access: yesAtmospheric Science Letters
Whilst permafrost change is widely concerned in the context of global warming, lack of observations becomes one of major limitations for conducting large‐scale and long‐term permafrost change research.
Zequn Liu   +3 more
doaj   +1 more source

Characterization of Organic Thin Film Solar Cells of PCDTBT : PC71BM Prepared by Different Mixing Ratio and Effect of Hole Transport Layer

open access: yesInternational Journal of Photoenergy, 2015
The organic thin film solar cells (OTFSCs) have been successfully fabricated using PCDTBT : PC71BM with different mixing ratios (1 : 1 to 1 : 8) and the influence of hole transport layer thickness (PEDOT : PSS).
Vijay Srinivasan Murugesan   +5 more
doaj   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert   +7 more
wiley   +1 more source

High Arctic Vegetation Communities With a Thick Moss Layer Slow Active Layer Thaw

open access: yesJournal of Geophysical Research: Biogeosciences
AbstractSvalbards permafrost is thawing as a direct consequence of climate change. In the Low Arctic, vegetation has been shown to slow down and reduce the active layer thaw, yet it is unknown whether this also applies to High Arctic regions like Svalbard where vegetation is smaller, sparser, and thus likely less able to insulate the soil.
Sil Schuuring   +5 more
openaire   +2 more sources

Efficient, Stable, and Low-Cost PbS Quantum Dot Solar Cells with Cr–Ag Electrodes

open access: yesNanomaterials, 2019
PbS quantum dots (QDs) are a promising nanostructured material for solar cells. However, limited works have been done to explore the active layer thickness, layer deposition techniques, stability improvement, and cost reduction for PbS QD solar cells. We
Jobeda J. Khanam   +4 more
doaj   +1 more source

Active multilayer mirrors for reflectance tuning at extreme ultraviolet (EUV) wavelengths [PDF]

open access: yes, 2012
We propose an active multilayer mirror structure for EUV wavelengths which can be adjusted to compensate for reflectance changes. The multilayer structure tunes the reflectance via an integrated piezoelectric layer that can change its dimension due to an
Bayraktar, M.   +6 more
core   +2 more sources

Elinvar Materials: Recent Progress and Challenges

open access: yesAdvanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Prediction model for the initial period, active period, and decline period of surface movement in coal mining

open access: yesMeitan xuebao
The duration of the initial, active, and declining periods of surface movement during coal mining is a key indicator for evaluating the stability of the surface, in response to the lack of theoretical prediction models for the duration of initial, active,
Liangliang ZHANG   +3 more
doaj   +1 more source

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