Which risk increases significantly when semiconductor purity drops, narrowing energy bands?

💡 Explanation

Uncontrolled current flow occurs because reduced purity leads to band tailing, creating states within the band gap, allowing premature impact ionization events; therefore, Zener breakdown is observed sooner rather than at the designed reverse voltage.

• Which mechanism causes speckle patterns from laser pointers?
• Which consequence results when a submarine's cavitation level exceeds broadcast SONAR?
• Which mechanism limits Carnot engine efficiency when operating close to critical point of working fluid?
• Which material failure accelerates from persistent high tensile stress in polymers?
• Which consequence results when a quantum dot's wavefunction penetration ('tunneling') increases due to size reduction?
• Which consequence results when entangled photons pass apertures?