What are the parameters for coating SiO2 thin film using a Thermal Evaporator?

I have seen many works reporting the use of thermal evaporation technique but they seldom give details about the source, boat and other detailed parameters. Can anyone guide me with these details?

04 May 2017 8,294 4 View

How do you calculate the electron density of a nanomaterial?

08 September 2014 691 7 View

How to determine fluorescent decay rates (radiative and non-radiative) of a dye?

I have a nanosecond pulsed laser. How can I find out radiative and non-radiative decay rates of a dye molecule using this nanosecond pulsed laser? Can you suggest some simple experimental methods...

07 August 2014 3,165 14 View

Which tape should I use to create a well on a glass slide for doing Sandwich assay?

I want to do Sandwich assay on a glass slide. I have read in some papers that they use a "tape" with rectangular hole to cover the slide. This rectangular hole is used as well for carrying out the...

01 February 2014 5,676 2 View

Which polymer is both permeable to lower alcohols and is also insoluble in them?

I'm finding it difficult to find a polymer that is permeable and insoluble in lower alcohols like methanol, ethanol and isopropanol.

08 September 2013 9,801 4 View

Can anyone suggest a good CVD or PVD equipment?

The applications may include metal thin film deposition, semicondicting layer deposition and carbonaceous thin film deposition. Which one is preferable with respect to cost, ease of working etc?...

08 September 2013 464 8 View

Is there any other way to deposit Nanometer silver thin film other than using CVD or PVD instruments?

Can we deposit silver or gold thin film of nanometer thickness using techniques other than vapor deposition techniques?

08 September 2013 7,947 6 View

Is there any software to convert an image into a spectrum or to get XYZ or LAB values of the image?

When we use picasa we can notice a spectrum of the image that is displayed in the window and it shows various details about the image.. Also if the image is a single color image it can be...

07 August 2013 9,097 11 View

What is optical band gap and electrical band gap?

Is there any way to find out optical band gap and electrical band gap using simple instruments like UV-Vis spectrophotometer? What are the parameters that influence the band gap in a metal thin...

06 July 2013 2,742 3 View

How to setup a film thickness measurement instrument based on Tolansky method?

Please share your experin=ence and knowledge in setting up an Interferometric thin film thickness measuring instrument. I want a detailed step by step protocol to follow. I googled for it but in...

06 July 2013 9,169 11 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

Apart from Nanosilica and CNT's what are the other nanomaterials readily available to use in concrete mixture?

Nanotechnology in concrete materials

01 March 2021 3,379 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

CGA 300 Regulator for CO2 cylinder?

Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...

25 February 2021 3,292 3 View