What is the origin of absorption in the materials? during deposition of optical thin films?

Hello every one, I feel the absorption in the coating films in physical vapor deposition refers to various following factors 1) in proper maintenance of the coating chamber 2) variation in the...

07 August 2019 6,254 4 View

Coating peeling off, How the Stress were generated between the substrate and coated multi layer stack ?

Hi friends, Recently we have deposited a multilayer stack using materials like TiO2, HfO2 combination and TiO2, Y2O3 combination. both combination of stacks were deposited by electron beam...

07 August 2016 3,374 2 View

Does able to do coating on Aluminium substrate as Aluminium material ?

07 August 2016 5,622 2 View

Can any one explain how to plot the Transmittance data verses angle of incidence ?

Transmittance plot with respect to angle of incidence

01 February 2016 5,277 0 View

Can any one Explain Single Oscillator Model?

31 December 2015 5,266 0 View

What is the concept of effective medium theory for modelling the galncing angle deposition thinfilm filters?

GLAD modelling

04 May 2015 1,625 1 View

How can I model a graded design of optical filter?

I would like to model and design a graded design (multilayer) for the electron beam evaporation technique. I would appreciate if anyone can help me modeling this problem.

03 April 2015 7,714 2 View

Can any explain how to make a rugate broad band design in visible region?

Thin film optics

01 February 2015 3,284 1 View

How the side lobes or harmonics or ripples formation can be Exhaustively been removed in the thin film filters by maintaining overall uniformity?

generation of ripples or harmonics in the interface of the coating.

31 December 2014 1,681 3 View

How to model the battery pack in PSIM or PSCAD?

Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...

28 February 2021 2,116 1 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How to improve the adhesion between germanium and silicon monoxide thin film layers using EBEAM evaporation?

I want to deposit multilayer coating of germanium and silicon monoxide on silicon wafer using ebeam evaporation?

21 February 2021 2,141 3 View

How can I measure the thickness of thin layers deposited on textured glass susbtrates?

I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.

21 February 2021 5,465 4 View

Is it possible to add a source term to the momentum equation in ANSYS CFX?

I want to add a source term as a body force to the momentum equation in Ansys CFX for modeling the VGs and I don't know how do it !!

21 February 2021 2,971 4 View

How do I calculate absorption coefficient of my thin film if I dont know the thickness? Or how can I calculate the thickness of my sample?

I have done Uv-vis characterisation of my thin film and have received absorbance and transmittance data. Now I want to calculate the absorption coefficient but I dont know the thickness of my...

21 February 2021 7,148 8 View

How to construct different filler shape in MD simulations?

Is there any way to construct different initial filler shapes like triangle, square, rectangle, pillar, and tube in any simulation software.

20 February 2021 1,750 1 View