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This study presents a new design that uses a combination of a graded hole transport layer (GH) structure and a gradually doped emissive layer (GE) structure as a double graded (DG) structure to improve the electrical and optical performance of white organic light-emitting diodes (WOLEDs).
As the most optimal profile a parabolic, double graded band-gap profile with a positive or nearly zero conduction band offset at n/p hetero-interface is calculated.
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A double Grade: A for my children; Fail for my marriage!
The experimental and simulation studies have shown that double grading in the CIGS absorber layer has greatly improved the performance of single-junction CIGS cells [40, 41].
Figure 2b shows the energy-band diagram of CIGSe device with (dotted), without double grading (continuous line) and the energy-band-gap profile of the CIGS absorber layer used in simulation is given in Fig. 2b, inset.
By introducing CIGS absorber layer with a double grading Ga/(Ga+In) profile, the power conversion efficiency of the double gradient band gap cell is superior to that of uniform band-gap cell through extending absorption of near-infrared wavelength range.
An innovative double functionally graded composite circular beam comprised of axial and radial graded foam filler is proposed to improve the safety of vehicle under lateral load.
This paper introduces a novel configuration, namely double functionally graded (DFG) structure, which comprises of a functionally graded honeycomb filler in a functionally graded thickness (FGT) tube.
The only objectives I had, grading any assignment, were to be fair and objective, and to minimise complaints.I reckon grade inflation is less prevalent at British universities because exams are often double marked, graded by your professor and one at another university.
Six elastically connected double-functionally graded beam systems (DFGBSs) having different boundary conditions are considered.
This paper studies the dynamic responses of an elastically connected double-functionally graded beam system (DFGBS) carrying a moving harmonic load at a constant speed by using Euler Bernoulli beam theory.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com