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Questions related from Chandra Bhal Singh
In an article, The valence band maximum position and conduction band minimum position is calcaulted from UPS and UV-vis absorption. They have mentioned that their obtained value of VBM anad CBM is...
17 July 2020 5,224 0 View
I have ferroelectric materials in powder form, in solid pellets form and as thin films . How to use Ultraviolet photoelectron spectroscopy (UPS) measurement for band gap calculation in...
06 July 2020 1,209 3 View
Are immunity enhancer medicine (Homeopathic and Ayurvedic ) helpful to prevent yourself from Corona virus?
03 March 2020 3,852 15 View
How weather can be a factor in Corona virus spreading? As Africa is still safe from it.
03 March 2020 9,894 9 View
I need steps for measuring the Fatigue endurance and retention of polarization. I soft. There is no option for these measurement. They have other option like P-E loop, hysteresis, I-V, leakage etc.
27 February 2020 5,981 3 View
How tolerance factor in ABO3 ceramics is related to spontaneous polarization? Is there any mathematical relation between them?
28 January 2020 4,144 3 View
How to calculate real and imaginary parts of dielectric constant from impedance measurement?
25 October 2018 2,523 16 View
I have temperature dependent dielectric data. How to calculate relaxation time using Vogel-Fulcher relationaship?
25 October 2018 5,604 2 View
How to get rid off from Bismuth deficiency XRD peak from bismuth based perovskite oxides? Even after adding extra 10% bismuth the peak at around 2THETA= 27 deg, is still observed in XRD data.
22 September 2018 7,131 4 View
Does Quantum Efficiency of solar cells also depend on crystal structure of light absorbing layer of PV device ?
24 June 2018 8,461 4 View
In magnetic measurement of materials, what is the physical significance of training effect?
11 June 2018 5,909 4 View
Dear Sir, I have query regarding band gap measurement using Tauc's plot. I have synthesised a new perovskite material and have measured the absorbance. I have plotted the graph (αhν)^2 vs hν...
28 May 2018 8,779 10 View
