What are the substrates used for STM study???

More Md. Seraj Uddin's questions See All

How do We measure the band-gap of Nanoparticles using STM??

As We have studied that the bang-gap(BG) of semiconductors can be measured using Absorption and Reflectance spectra. But these techniques give only the average value of BG(crude way of...

10 November 2018 3,936 4 View

Could anyone suggest me a book on advanced transmission electron microscope where material analysis and TEM instrumentation is given?

I want to learn data analysis of the TEM signal and also the handling of TEM instrument.

03 April 2018 6,870 3 View

Why does the light have diffraction limit and how would we explain it in terms of photon?

In Ray optics, the beam size is zero at focal plane of lens and in Gaussian Optics, the size would be minimum at focal plane because of diffraction limit but as we know that a photon does not...

03 April 2018 3,258 2 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

Adhesion strength of coating?

How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...

10 August 2024 942 3 View

How do I conformally do PR spin coating on trench structure?

I did PR spin coating on trench structure. I used AZ P4620 PR and the thickness or PR is around 11um. The substrate is Si. And my trench structure depth is 141um(negative way). Even though I...

08 August 2024 2,298 0 View

Is there anyone with experience in TEM analysis who can assist with a manuscript for an upcoming journal?

Hello dear colleagues, We have prepared a manuscript on NiTi-based alloys and are seeking a second opinion on our current TEM results. If you are a Ph.D. holder with experience in TEM and have...

07 August 2024 9,563 0 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

Which distribution type should I use when calculating the average particle size from TEM image? and how to calculate the error ?

average particle size calculation from TEM

04 August 2024 2,921 1 View

Is it necessary to covary exogenous constructs in a structural model?

I am working on a SEM model where i have 7 latent variables (6 exogenous and 1 endogenous). In AMOS when I co-vary the exogenous constructs, only 2 paths are coming significant out of 6. But when...

03 August 2024 6,028 4 View

In SEM, if a latent variable consists of three observed variables, and each observed variable has four items, what should I do?

Suppose I am studying the construct of "Academic Motivation" (latent variable) in students, which is measured through three observed variables: "Intrinsic Motivation," "Extrinsic Motivation," and...

31 July 2024 3,913 6 View

Please guide me how to prepare samples for zeiss confocal microscope?

i am working on ischemic stroke. for immunoflourescence i want to use zeiss confocal microscope.before i used VS120 but the images from vs120 not so good now i want to use zeiss confocal but i...

30 July 2024 2,349 1 View