Q. Consider the following statements regarding thermoelectric materials
1. This type of material can generate electricity by using a temperature difference between its two sides.
2. The thermoelectric device can also function as a small heat pump, moving heat from one side of the device to the other.
Which of the above statements is/are correct?

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: C
Notes:

Recently, Researchers from the International Advanced Research Centre for Powder Metallurgy & New Materials (ARCI), an autonomous institute of the Department of Science & Technology, have developed a new low-cost electrical contact material for thermoelectric devices that is stable at high temperature. 

  • The thermoelectric material can generate electricity by using a temperature difference between its two sides. The thermoelectric device can also function as a small heat pump, moving heat from one side of the device to the other. 
  • Thermoelectric materials convert thermal energy directly into electricity through a process that involves a solid-state electron and phonon diffusion process. 

Source : All India Radio