Ujjwal Ghanta

11 Questions 14 Answers 0 Followers

Questions related from Ujjwal Ghanta

How to create the Python GUI using PyQt5 and Qt Designer?

I am interested to create a GUI for a data acquisition system (micro controller unit). I want to set a voltage at PV1 and measure the same voltage at A1 for checking purpose. The python script is...

12 June 2024 1,244 3 View

How to calculate strain in Si nanocrystals from Raman spectrum?

How to calculate the amount of strain generate in Si nanocrystals from Raman spectrum ? Is there any way to distinguish the component of strain and phonon induced Raman peak shift ?

22 May 2018 6,640 1 View

Latex figure side by side in 'iopart' document class

I am using 'iopart' document class for IOP Journal. I am unable to place 2 figure side by side. In figure caption, the 1st figure shows figure 2. Whereas in the text it appears as figure 1(a) and...

27 July 2017 2,475 4 View

Why Raman signal is related to zone-centre optical phonons?

Why in ideal single crystals only the zone-centre optical phonons are observed using optical techniques such as Raman spectroscopy?

07 June 2017 1,820 4 View

What is direct evidence of phonon confinement in silicon nanocrystals?

Other than Raman spectroscopy, is there any other experiment available for the direct evidence of phonon confinement or selective phonon modes in silicon nanocrystals?

17 May 2017 6,693 3 View

What is the diffusion length of Indium in porous silicon? How it vary with temperature?

What is the diffusion length of Indium in porous silicon? Can Indium ion diffuse through porous silicon layer laterally over a length of 1 mm?

01 February 2017 7,010 1 View

Which process appears in low voltage, trap assisted tunneling or poole frenkel emission ?

For a fixed temperature, if both trap assisted tunneling and poole frenkel are present in the system, then which one will appear in low voltage pool frenkel emission or trap assisted tunneling?

15 July 2016 7,973 3 View

Why PL decay time decreases with emission energy?

In case of photo luminescence the decay time decreases with increasing observation energy and the variation is exponential in nature for a fixed excitation energy (for Silicon nanostrecture,...

18 February 2016 1,674 5 View

Can anyone suggest about free TCSPC data analysis software?

I have installed DecayFit in windows 7 (32 bit) from this link given bellow. But it is not working properly. I am interested in decay times and series exponential method analysis. Can anyone...

24 August 2015 4,784 2 View

Does anybody know how to measure current-voltage characteristics of a diode using Arduino with 10 or higher bit resolution?

I am interested to measure the current-voltage characteristics of a diode with 10 or higher bit resolution. Is it possible with Arduino? If possible please provide the code and circuit diagram.

05 August 2015 4,959 7 View

Is there any difference between "Meyer-Neldel rule” of conduction and thermally activated hopping conduction?

Both follow the same mathematical relation.

01 April 2015 6,859 1 View