Which property controls electron flow in semiconductors, when increasing temperature?

💡 Explanation

The band gap shrinks with increasing temperature primarily because of increased atomic vibrations disrupting the potential within the crystal lattice, via electron-phonon interaction. Therefore, enhanced electron excitation occurs and enhances conduction, rather than alternatives that affect different properties.

• Which mechanism causes increased brittleness as temperature decreases in BCC metals?
• Which risk increases when hydrogen isotopes fuel magnetically-confined plasma fusion?
• Which outcome occurs when an aircraft's piston engine experiences rapid ascent?
• Which mechanism reduces biodiesel yield when excess methanol remains?
• Which consequence results when insufficient catalyst is loaded onto a catalytic converter in an automobile?
• Which mechanism enhances material ablation rate when tightly focusing pulsed lasers?