Why carrier Concentration decreases while increasing Temperature ?

24 June 2024 0 5K Report

Hi All .

Recently, I conducted Hall measurement experiments at high temperatures on highly p-doped diamond with a doping concentration of 2.5×10^20 cm−3

During these experiments, I observed two key phenomena:

Carrier Concentration: As the temperature increased, the carrier concentration decreased.

Resistivity: Despite the decrease in carrier concentration, the resistivity of the material decreased with increasing temperature.

Resistivity decreasing is logical. But why the carrier concentrations are decreasing?.

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