Can you please explain the principle of scattering of optical and electromagnetic waves?

If I pass a laser light through 100, 110, 111 or polycrystal sheet, will scattering, diffraction happen or not? As when x-ray pass through different planes, it happens. Can anyone suggest the...

07 August 2018 9,572 7 View

How to make good metal oxide thin film by spin coating?

I synthesized metal oxides with different morphology by chemical route, now i have it in powder form. I want to make thin film of this material o glass substrate to measure gas sensing properties....

04 May 2018 4,835 11 View

Can you please tell which wet chemical process is good to clean SiGe wafers to remove metals, native oxides and organic impurities?

Can you please tell which wet chemical process is good to clean Si, Ge, SiGe wafers to remove metals, native oxides and organic impurities?

11 December 2017 8,036 2 View

Etchant for SiGe?

Can you please suggest chemical for selective etchant for Poly and Single crystalline SiGe wafer with respect to Si? i want to use it for SiGe NWs fabrication process

11 December 2017 7,560 1 View

XRD of SOI wafer (100)

I am using SOI wafer for my research work. When i am doing XRD then i am getting major peak 69.58. I matched this with JCPDS Data base. That peak reported as Si peak. Can...

06 July 2017 8,187 0 View

Single crystalline Silicon XRD

I purchased commercial Single crystalline Silicon wafer. company mentioned, it is plane oriented wafer. When I am doing getting XRD peaks on 69.24, 65.84, 61.68, 33. when i compare...

06 July 2017 3,336 4 View

I got skin burn on my hand when handling the chemicals. Ethanol, acetone, Naoh, hexamine, zinc nitrate & acetate. Plz suggest the reason & treatment

05 June 2017 3,755 2 View

How can i measure the temperature of electrodes in Thermal Evaporation systems

04 May 2017 1,749 2 View

Hydrothermal growth of ZnO NWs

I want to grow ZnO Nanowires on glass substrate by hydrothermal growth. I found various methods. I have following doubts... Seed layer importance and effect on NWs growth, size of Nanoparticles,...

04 May 2017 4,965 3 View

Can i use same tungsten boat multiple time for germanium deposition?

I am depositing Germanium on silicon by thermal evaporation. I am using Tungsten boat. My question is that can i use same boat multiple time for germanium deposition (Reuse same boat for next...

04 May 2017 3,077 4 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 3 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View