A promising approach to the realization of the silicon quantum dot absorbers is the fabrication of superlattice structures with controlled mono-disperse size and spacing of the Si-NCs.
The spectral TRIP effect improves both, the strength and the ductility due to the well dispersed size distribution and the associated size-dependent deformation and phase transformation behavior of the reverted austenite grains, extending TRIP-related work hardening over a broad strain range.
Moreover, Figure 3 highlights that an average bulk behavior of water within CNA-based composite materials is expected for ϕ> 10 nm, independently from the size distribution; however, as already noticed in Figure 2d, highly dispersed size distributions (i.e., high σ) imply low local D, which may be of interest for size-dependent molecular sieving applications.
Figure 7 presents a TEM image of representative CIS QDs with a Cu/In ratio of 1/1, with widely dispersed size concentration in the range of 10 to 20 nm. Figure 8a presents the absorption spectra of CIS QDs with various Cu/In ratios, showing a blue shift in absorption far more pronounced than that observed in Cu-deficient CIS QDs.
Particle image velocimetry (PIV) is a promising technique to measure dispersed phase size, dispersed phase hold-up and velocity of both the phases.
Results show that ultrasound irradiation lead to stable morphology with reduced disperse phase size.
This paper develops and validates a simple model to study the influence of interaction layer formation, dispersed particle size, and volume fraction of dispersed phase in the matrix on the effective conductivity of the composite.
This critical volume fraction is shown to be independent of the overall dispersed phase concentration, shell thickness or dispersed phase size.
The Ccrit value is directly related to the interfacial area of the dispersed phase and a lower equilibrium dispersed particle size results in a corresponding shift in Ccrit for similar systems.
The smaller the dispersed phase size, the higher the resistance to oil and thermal aging.
Previous characterisation and analytical studies that have been reported in the literature for Cu2O nanoparticles have focused on ensemble colloid solutions or bulk materials that are widely dispersed in size and morphology, resulting in cumulative measurements20,21.
