Correlation between crystallite size and refractive index ?

Dear scientist, Could anyone tell us if there is a correlation (proportion ) between the crystallite size and refractive index of thin films (oxides) ? Thanks in advance.

09 October 2019 828 3 View

Optical losses in Silicon solar cell ?

Dear scientists, Light absorption limitations for some parts in UV and IR regions of the solar spectral irrandiance AM1.5 by silicon based solar cells with SiNx ARC is a well-known problem....

08 September 2019 5,601 3 View

Mechanisms and processes behind nanocrystalline thin films' growth?

Please, could anyone provide detailed references on mechanisms and processes of growing nanocrystalline structures in thin films using soft chemical routes in general and sol gel process in...

07 August 2019 5,803 4 View

How to synthetise nanomaterials using sol gel method?

Dear researchers, Could someone provide any advices on how to prepare nanomaterials in thin film form using sol gel method ? Thanks.

07 August 2019 4,916 5 View

How could I estimate thin film thickness from reflectance spectra, the substrate is silicon (not transparent)?

I've deposited TiO2 thin films on silicon substrates (not transparent), and have done reflectance measurements, so how can I extract thicknesses from reflectance measurements ? I wonder which kind...

02 March 2017 7,876 6 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 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

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 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

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