A few weeks ago, professor Mike Aziz in Harvard University helped to annealed two samples and in-situ imaged the early stage of pore formation using their Jeol2010-hot-stage-TEM. The oxide seemed intact during the process. The sample was unannealed 20(bottom)/15(a-si)/10(top) three…

Two high school students, Nick and Nikita, were supervised to study the effects our Sepcon membranes had on potential charge based separations. Using standard 30 nm cutoff Sepcons and the pressure cell, they performed a set of experiments with high…

To this point, I have shown that our membranes are stable with the use of INT’s developer over time. I have also shown that their developer has statistically similar flow properties to that of water, and is a viable option…

The thickness of bottom oxide in the ‘sandwich structure’ is also a key factor to affect the pore morphology. In last few weeks I deposited five wafers with different bottom oxide thicknesses and they were 05/15/20, 10/15/20, 20/15/20, 40/15/20 and…

Last few weeks, I deposited a couples of wafers to test the effect of oxide thickness on pores. In addition to previous data, I deposited another two wafers, one with 1nm top oxide and the other with 100nm top oxide.…

This experiment compares the metal developer used in Integrated Nano Technologies’ device to to the flow properties of water. Using the pressure cell at 3 psi, with no allyl treatment, for 10 minutes, and 200 microliters of liquid, I pushed…

This is a continuation of the initial experiments testing the possibility of creating porous Si membranes with thicknesses ranging from 50 to several hundred nm, and mean pore diameters from ~50-200 nm. As suggested, we’ve started using 200 µm thick…

This post relates to the ongoing project and potential grant between Integrated Nano-Technologies, Simpore, and NRG. The goal of my research is to show that our membranes can be integrated into Nano-Technologies’ device. Our membranes must be able to filter…

We are proposing a novel method for the fabrication of porous thin-film silicon membranes. It has been shown that metallic nanoparticles on the surface of silicon submerged in a solution of hydrofluoric acid and hydrogen peroxide will bore holes into…