Sunil Kumar

6 Questions 4 Answers 0 Followers

Questions related from Sunil Kumar

How would you infer to increase in the carrier mobility and scattering of phonon in the thermoelectric nanocomposite materials simultaneously ?

The carrier mobility in the nano composite thermoelectric materials is increase after the incorporation of conducting filler but simultaneously, we explain that phonon scattering would increase...

11 October 2017 1,649 2 View

How can we relate charge carriers mobility with Seebeck coefficient ?

As we know, During the thermoelectric measurements at the hotter side of the material there is more variation in the energies of the charge carriers, compared to the colder side. This means that...

04 February 2016 562 4 View

If conduction in a material through polaron hopping than how to decide the type (p or n-type ) of a material ?

We have a material in which activation energy near about 0.4- 0.5eV, calculated from arrhenius plot, that confirms the polaron hopping in the material. At the same time, the positive value of...

03 February 2016 9,223 3 View

Why should the temperature difference be minimized during seebeck effect measurment?

I kept temperature difference between hot side and cold side near about 10-15K during seebeck effect measurement of bismuth telluride pellets. Is it wrong procedure to measure see beck coefficient ?

19 January 2016 5,596 4 View

How to interpret result when see beck coefficient and electrical conductivity increase for a thermoelectric material?

seebeck coefficient is inversely proportional to carrier concentration and electrical conductivity is directly related to carrier concentration.So seebeck coefficient should increase...

30 December 2015 8,511 6 View

Is it beyond nano-structure engineering ?

As you are talking about the reduction of thermal conductivity. Basically most of thermoelectric scientists are working on nanocomposites and doping of rattler atoms in the matrix to increase the...

01 January 1970 7,896 3 View