Md. Seraj Uddin

4 Questions 5 Answers 0 Followers

Questions related from Md. Seraj Uddin

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...

11 November 2018 3,905 4 View

What are the substrates used for STM study???

I have a sample of Si alloy NPs and I want to do STM study. For STM study, we used highly smooth surface. Gold coated substrate is one of option but apart from this, could any other substrate be...

11 November 2018 9,590 2 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.

04 April 2018 6,855 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...

04 April 2018 3,222 2 View