Boosting lateral photosensing performances in a P(VDF-TrFE)/Bi2Se3/Si heterojunction induced by surface modification and ferroelectric and pyroelectric effects

A broadband high-sensitivity self-powered PSD is developed by using a Bi 2 Se 3 /Si heterojunction and a P(VDF-TrFE) surface functional layer, and analyzed by reducing surface electrical conductivity and coupling ferroelectric and pyroelectric effects.