Muhammed Ali A.V

4 Questions 7 Answers 0 Followers

Questions related from Muhammed Ali A.V

Can someone explain why all of my TFTs are showing ambipolar behavior? Is this a problem with measurement or device?

I have fabricated TFTs on SiO2(300nm)/Si(n++) substrate using ZnO as an active layer of thickness 10nm-30nm. For all TFTs, it shows ambipolar behavior!!!. Can anyone tell me is it the problem...

21 January 2015 8,751 11 View

How can I measure the band gap of ZrO2 & Al2O3 thin films from optical measurement?

I am working with Alumina & Zirconia thin films by reactive dc magnetron sputtering on silicon & soda lime glass substrates. Is it possible to use the Kubelka-Munk method from diffuse...

15 January 2015 7,168 10 View

Can someone advise on removing the oxide layer from zirconium target?

Even after repeated scrubbing using sandpaper (high roughness), oxide layer still remains on the target (showing discontinuity on the surface of zirconium target). Is there any solution to...

18 January 2014 9,783 2 View

How does grain size depend on the optical energy band gap of a thin film sample?

For example, increasing the thickness of the film causes a decrease in grain size, as a result of the increase in energy band gap. So how does the grain size depends on energy band gap?

11 April 2012 9,714 16 View