How can FF demonstrate different behavior in two solar cell devices w. r. t. the ETL thickness, when only HTL is different for them?

Increasing the thickness of ETL in photovoltaic device lowers the Fill factor and efficiency as well. However in one of the devices with only different HTL than first device, the efficiency...

08 September 2019 7,530 4 View

Does low Energy gap semiconductors show some dielectric properties??

Generally Substances with a forbidden band widths Wg < 2eV are considered to be semiconductors while those substances for which Wg > 3eV belong to dielectrics. Now, the question goes like if...

03 April 2019 6,242 5 View

Which mode is best to record the spectra of powders in UV-Visible spectrophotometery ??

Dark colored powders are to be characterized by UV-Visible spectroscopy technique, which mode among diffuse reflectance, absorbance or transmittance is suitable to record the spectra?? the...

10 November 2018 5,292 2 View

Could we perform x-ray photo-electron spectroscopy measurement to powder samples??

Which form of the sample (thin film/powder/pellet) is better for carrying out XPS measurement? I have heard that thin films are better. Please comment

09 October 2018 7,873 2 View

What are the possible reasons for the shifting of XRD peak positions with doping ??

In the xrd measurement of the pure and doped materials, it has been observed that few peaks are shifted due to doping. What could be the possible reasons for this X-Ray peak shifting??

09 October 2018 1,677 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

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

I have need of XRD graph analysis software for phase identification. Can you please provide links for software tools which can be downloaded?

i am trying to download x'pert high score software, but can't download it. please do suggest software for phase analysis

24 February 2021 5,687 4 View

Why the CHi^2 is close to zero with a bad fitting but the Rp and Rwp are still high?

I am refining my XRD data using in FullProf program. The intensity of the modulated X-ray peaks is almost flat. I tried to adjust the peak intensities but unsuccessful. What is the reason? I guess...

23 February 2021 2,304 4 View