Minimal twin structures enabling extraordinary thermoelectric power factor of n-type Bi2Te3 thin films

Key Points

• The aim is to explore how minimizing twin structures affects the thermoelectric performance of n-type Bi2Te3 thin films.
• Investigated the influence of twin structures on carrier mobility and bipolar conduction.
• Analyzed thermoelectric power factors in n-type Bi2Te3 thin films with minimized twin structures.
• Significantly increased carrier mobility observed when twin structures are minimized.
• Reduction of bipolar conduction contributes to a higher thermoelectric power factor.