Cyril Robinson Azariah John Chelliah

8 Questions 7 Answers 0 Followers

Questions related from Cyril Robinson Azariah John Chelliah

In MOSFET, oxides are used as gate dielectrics. Whether the oxides can be used as channel semiconductors?

What happens if the metal oxides used as channel in MOSFET? What happen to the conduction mechanism in the MOSFET? In MOSFET, oxides are used as gate dielectrics. Whether the oxides can be used as...

27 May 2018 9,486 4 View

If UV emission center from Absorbance spectra (obtained from UV-Vis spectroscopy) lies between the 298nm to 302nm what do we observe from it?

For the attached Absorption spectra graph, 1. As the absorption intensity increases for some samples 0.7 to 1.4, is it due to hyperchromic effect? 2. If UV emission center from Absorbance...

22 April 2018 7,069 3 View

Can we use Pulsed laser deposition of Gallium nitride thin film in Argon gas atmosphere?

I have seen literature with Pulsed laser deposition of Gallium nitride thin film using Nitrogen gas atmosphere. Is it possible to use Argon gas atmosphere?

08 January 2018 8,787 5 View

Why was the PL intensity increased and shifted to UV region while increasing the temperature?

In Photo luminescence spectroscopy of the thin films, why was the PL intensity increased and shifted to UV region while increasing the temperature?

30 October 2017 1,481 3 View

What is the difference between tauc plot using absorbance and transmittance for energy gap calculation?

UV Spectrophotometer

03 March 2017 7,631 7 View

Which method is helpful in coating Quantum dots above Si wafers?

I have attached the structure of the MOS device. Currently I would like to coat a graphene Qds, fullerene QDs above Si wafer.

11 February 2015 8,160 3 View

Please tell me, Why the cutoff frequency is taken for 3dB and not other values like 1 or 2 db?

07 February 2012 7,729 54 View

Where does the density and acoustic impedance values for the carbon family compounds can be found? How these values determined?

What are the density and acoustic impedance values used for C60, graphene, SWNT, MWNT and graphene oxide in thermal evaporation, a physical vapour deposition process?

01 January 1970 1,650 1 View