P4+N2

P4N2

Materials and geometry:  

P Leg: AgSbTe₂

Reference: Wang, Heng , et al. "Synthesis and transport property of AgSbTe2 as a promising thermoelectric compound." Applied Physics Letters 93.20(2008):3214.

N Leg: High zT Bi₂Te₃

Reference: Wu, Yehao , et al. "Enhancing room temperature thermoelectric performance of n -type polycrystalline bismuth-telluride-based alloys via Ag doping and hot deformation." Materials Today Physics 2(2017):62-68.

The best COP under different DeltaT:

 

The cooling power density at best COP under different DeltaT :

 

The current density at best COP under different DeltaT :

 

how do COP and cooling power change with current density when deltaT=0.9 delta Tmax:

 

how do COP and cooling power change with current density when deltaT=0.6 delta Tmax:

 

how do COP and cooling power change with current density when deltaT= 0.3delta Tmax:

 

how do COP and cooling power change with current density when deltaT= 0.1delta Tmax:

 

The optimum leg cross-section ratio