Why does the photocurrent density does not proportionally increase upon increasing the incident light intensity?

I have prepared a photocathode and carried out linear sweep voltammetry (LSV) measurements. When I increased the incident light intensity, the photocurrent has not increased proportionally. May...

31 December 2019 256 1 View

Analytical analysis to calculate diffraction efficiency for a rectangular grating structure on dielectric slab?

I need to solve the Maxwell's electromagnetic equations for the case of rectangular gratings on a dielectric slab and calculate the diffraction efficiency in each diffraction order at different...

02 March 2019 5,466 4 View

How to characterize the reflection spectrum of small structure samples?

I have fabricated a sample size of 40 micron x 40 micron using Electron beam lithography. I need to characterize the sample to obtain reflection and transmission spectrum of the fabricated...

07 August 2018 991 3 View

Why L*a*b* color model is used for evaluation of color difference but not RGB or HSV?

To calculate the difference between two colors, why it is required to use L*a*b* color model?

04 May 2018 3,399 0 View

How to remove the residual PDMS on the silicon mold?

Incompletely cross-linked pdms are difficult to remove.

01 March 2021 798 3 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 compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

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

24 February 2021 2,362 5 View

How to delaminate copper in water-based anodes?

Hello everyone, I'm looking for a way to delaminate copper current collector of water-based anodes in Li-ion batteries without damaging the graphite film. I tried different materials such as HNO3...

24 February 2021 3,785 3 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

Can't recognize exact phase and PDF card no of Silicon carbide in XRD?

We have deposited silicon carbide on carbon substrate using one PVD technique. Due to amorphous behavior of SiC at low deposition temperature, we performed heat treatment of those films at...

22 February 2021 2,072 3 View

Is there a suitable way to confine cell attachment area inside a multi-well plate?

Are there any types of cylindrical cell culture inserts that are designed to confine cell seeding area? Say, if I'm using a 12 well plate (3.5 cm^2/well), but only want to seed cells in the middle...

22 February 2021 7,127 4 View