Sridhar Sampath

12 Questions 18 Answers 0 Followers

Questions related from Sridhar Sampath

What is the difference between Atomic Layer Deposition (ALD) and Chemical Vapor Deposition (CVD)?

Seeking to understand the difference.

04 February 2014 1,507 13 View

What is the need of using reciprocal lattice? Why should we not use direct lattice?

06 January 2014 6,523 27 View

What are the similarities between IR and Raman spectroscopy?

How are Raman and IR spectroscopy used to detect Phonons?

01 January 2014 7,328 9 View

What is difference between Phonon and surface Plasmon absorption?

I think both are based on electrons oscillations. Can someone help me to understand?

24 December 2013 8,762 3 View

String theory tells us we live in ten dimensions. What is the actual difference between 3rd and 4th dimension?

Also, what are the maximum dimensions existing in this universe?

22 December 2013 9,311 2 View

What is the purpose of using circular polarizer in camera?

Seeking to understand the reasons behind this choice.

20 December 2013 8,506 3 View

What is adsorption-desorption equilibrium in photocatalysis?

04 November 2013 6,952 5 View

What is the difference between free exciton and bound exciton in PL spectrum of TiO2 ?

Seeking to understand the difference

19 August 2013 8,000 5 View

Why do noble metal nanoparticles show surface plasmon absorption but not transition metal nanoparticles?

.......

26 July 2013 1,200 12 View

Can someone help me how to setup LED light for Photocatalytic dye degradation?

Absorption edge of my photocatalyst is around 410 nm. I want to use small size LED lights. I dont know how many led lights are required and what should be their power.

15 July 2013 7,316 1 View

What is a good way to measure the porosity of the coating?

05 July 2013 3,935 14 View

In the N doped TiO2 photocatalyst, what causes the band gap energy to reduce more, intersitial doping or substitutional doping of nitrogen?

...

04 July 2013 8,443 3 View