Which mechanism causes an indirect band gap’s lower electron mobility?

💡 Explanation

Intervalley phonon scattering decreases mobility because electrons need a phonon interaction for momentum change due to wavevector difference; therefore, electron transitions slow, rather than direct transitions requiring minimal momentum assistance.

• Which outcome occurs when a desiccant such as silica gel reaches moisture saturation?
• Which outcome reduces pumping efficiency when viscous fluid flow exceeds a turbine's design limits?
• Which breakdown occurs when a capacitor’s dielectric saturates?
• In quantum key distribution (QKD), which consequence results from eavesdropping exploiting entanglement?
• Which consequence results when hydraulic fluid velocity exceeds limits?
• Which outcome occurs when entangled photons traverse decohering mediums?