How could I find a proper solution and mesh for my physics in comsol?

I have 3 physics include mixer, radiation and chemical reaction related, which run in 2 different mesh and time dependent solution. The two study run in totally different techniques and when I...

29 July 2020 6,684 9 View

Anyone can suggest a chemical coating for silicon substrate to make a water contact angle between 30-40?

I prefer a silane with low boiling point as I am going to deposit it in the vapor phase (chemical vapor deposition). I have tried TMS (Chlorotrimethylsilane) using CVD on Si wafer and I got water...

13 August 2018 2,378 3 View

Does anyone know what is the best procedure for coating a silicon wafer with APTES (3-Aminopropyl)triethoxysilane) in vapor phase?

Thanks in advance

13 August 2018 9,792 4 View

Whats the reason limiting the fraction of filled pores (upon immersing in liquid) when increasing the thickness of a porous film (e.g. IOF)?

18 April 2017 4,675 1 View

What should be done when the two tests used in fitting probability distributions give two highly different p-values?

Dear Researchers, I am using ARENA Input Analyzer to get the best probability distribution from data (attached). The resulted p-value of Chi Square Test < 0.005 and for K-S Test > 0.15....

05 October 2016 9,094 3 View

Should the weights be integrated (=100%) in the weighted sum objective function?

01 January 1970 8,216 3 View

How to remove the residual PDMS on the silicon mold?

Incompletely cross-linked pdms are difficult to remove.

01 March 2021 798 3 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View

Can't recognize exact phase and PDF card no of Silicon carbide in XRD?

We have deposited silicon carbide on carbon substrate using one PVD technique. Due to amorphous behavior of SiC at low deposition temperature, we performed heat treatment of those films at...

22 February 2021 2,072 3 View

Amorphous silica XRD peak at around 10 degree?

21 February 2021 3,417 5 View

What is the detection limit of ED-XRF technique for transition metals in silicon ?

Hi everybody, please, can someone tell us if the transition metals (W, Fe, Ni, etc ...) in silicon destined for solar cell manufacturing can be detected by ED-XRF technique. Note that the...

18 February 2021 6,231 4 View

What is the reason film thickness increased?

what is the reason film thickness increased when increased doping concentrations give some reasons The measured film thickness is 156, 282, 394, 548 and 681 nm for 0, 1.5, 2.5, 3.5, and 4.5 wt....

17 February 2021 8,987 5 View

Unusually Busy Raman Background?

Hello, I am observing a nearly periodic background spectrum for a wide variety of SERS substrates. I see this response (attached below) for bare Au films, Cu films, and Au nanoparticles on...

15 February 2021 9,922 5 View

Sound transmission loss (Acoustic Metamaterial)?

My design contains three parts. A silicon rubber membrane is placed between upper and lower part. I want to calculate sound transmission loss by using comsol Multiphysic. There are lots of...

05 February 2021 466 4 View

Is it possible to find out the wettability and contact angle of water on the rough or corrugated substrate?

First of all, whether it is possible to identify the presence of water and its amount on the Silicon substrate by using only FT-IR spectroscopy. Can ATR-FTIR spectroscopy find out the wettability...

03 February 2021 9,085 4 View

How can you make a PEDOT:PSS film using the doctor blade technique?

I have been trying to make an even PEDOT: PSS (PH1000) film with the doctor blade technique (tape casting) with varying results. I have been using a silicon substrate that's treated with piranha...

01 February 2021 8,506 5 View