Which risk increases in crystalline semiconductor devices operating at elevated temperatures?

💡 Explanation

Increased thermal energy excites electrons across the band gap, increasing intrinsic carrier concentration of the semiconductor, which weakens the effect of doping because intrinsic carriers overwhelm impurity carriers; therefore extrinsic behavior fails, rather than changes relating to Fermi level or exciton dynamics.

• Which mechanism causes increased susceptibility to interference when tuning a radio receiver?
• Which consequence occurs when defects concentrate in a crystal lattice?
• Which outcome occurs when electron density distribution is highly asymmetrical due to an applied field?
• For a U-235 nuclear reactor operating at maximum designed thermal output, which risk arises from decreased coolant flow to the core?
• Which consequence results when gravitational and inertial effects equilibrate in a centrifuge?
• Which mechanism causes increased fracture toughness in alloyed cubic zirconia crystals?