Si nanocrystal solution with stability for one year

One-Year Exploratory Project: Nanowire-Nanocrystal Multiexciton Solar Cells

Multiexciton generation (MEG) is promising towards high-efficiency solar cells. Lead chalcogenide nanostructures are good potential candidates for applications in MEG solar cells. We have been successfully synthesized hyperbranched PbSe nanowire networks. Hyperbranched PbSe nanowire networks are synthesized via a vapor-liquidsolid (VLS) mechanism. The branching is induced by continuously feedin...

One-for-One Period Policy and its Optimal Solution

In this paper we introduce the optimal solution for a simple and yet practical inventory policy with the important characteristic which eliminates the uncertainty in demand for suppliers. In this new policy which is different from the classical inventory policies, the time interval between any two consecutive orders is fixed and the quantity of each order is one. Assuming the fixed ordering cos...

One-pot facile synthesis of a concentrated Si nanoparticle solution.

A silicon nanoparticle solution (size ≅ 50 nm) with the concentration of 100 mM, which is contamination free, was synthesized using a ball milling method and was stable for 4 months without aggregation. This stability was responsible for large negative zeta potential on the surface of Si-NPs, established by milling in 2-propanol solvent.

Electrical and optical improvement of Si nanocrystal based LED

Simulation of a cobalt silicide/Si hetero-nanocrystal memory

A nanocrystal memory using CoSi2/Si hetero-nanocrystals as floating gate was proposed. Numerical investigations on the writing, erasing and retention were performed. The hetero-structure provides an extra quantum well for the charge to achieve much longer retention time while maintains a writing/erasing speed similar to that of Si nanocrystal memory. 2005 Elsevier Ltd. All rights reserved. PACS...