active layer


Also found in: Wikipedia.

active layer

[′ak·tiv ′lā·ər]
(geology)
That part of the soil which is within the suprapermafrost layer and which usually freezes in winter and thaws in summer. Also known as frost zone.
References in periodicals archive ?
We take an approach where we actually make the luminescent active layer itself transparent.
They consist in:i) a multilayer tray involving an inner active layer, And ii) a multilayer flow pack with improved barrier properties.
Because the active layer had quaternary ammonium group distribution and allowed a stronger repulsion for [Ca.
When the device is forward biased, the carriers flow into the active layer and recombines with each other to enhance emitting light.
The substrate material is p-type semi-insulating (SI) GaAs whereas the active layer is of n-type GaAs.
We also demonstrate that the optimized moth eye structure can significantly modify the light path at a long wavelength range to strengthen the electric field intensity and enhance energy absorption within the active layer.
Our group also published several papers on the electrospray deposition of active layer for organic light-emitting diodes and organic photovoltaic cells [17, 22-25].
Using these derivatives the Merck KGaA, Darmstadt, Germany, team developed active layer formulations ready for deposition deploying a range of industrial coating techniques.
Most of the underlying terrain consists of ice-rich permafrost, with active layer depths ranging from 35 cm to 65 cm below the mineral soil surface (Burn and Kokelj, 2009).
Clear conductive films let you see through the product, biocompatible materials permit surfaces to go from barrier layer to active layer, new insulating materials are enabling electrical functionality, and materials with thermal management properties allow for reduction of cooling elements and increases in power.
Hydraulics and terrestrial hydrological processes in the northern latitude regions are controlled by the presence or absence of permafrost and the thickness of the top active layer of soil that thaws and freezes in seasonal cycles.
The typical BHJ organic solar cell has a indium doped tin oxide (ITO) anode, a thin layer of poly(3,4- ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), -BHJ active layer of a blend comprising of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) and a low work-function metal cathode.

Full browser ?