Abdul Ghafar Wattoo

3 Questions 13 Answers 0 Followers

Questions related from Abdul Ghafar Wattoo

What is the energy band gap of TiAlN.

Can anyone please tell me the energy band gap of TiAlN coating and any reference of the same. I want to know its approximate value before depositing its thin film. Many Thanks

04 July 2016 7,108 5 View

How to find the Band gap energy of an Oxide Semiconductor from Photoluminescence spectra?

1. Is it possible to find that whether the material is Direct or Indirect bandgap semiconductor from PL spectra? 2. What other information, we can get from PL spectra? THANKS

01 September 2015 8,641 8 View

How can I calculate Absorption coefficient from Reflectance data?

I have done UV-Vis experiment at Perkin-Elmer 950 UV-Vis spectrometer, and obtained reflectance data. Thickness of the powder sample (pellet) is more than 4 mm, can I assume T=0 and R+A=1 for...

02 May 2015 6,858 3 View