Abstract

Internal surface photoemission of electrons from 1D crystal into a barrier with participation of Tamm state (TS) at the interface crystal barrier is considered theoretically for the first time, to the best of our knowledge. It is shown that resonant tunneling of electrons through a TS could lead to substantial enhancement of the quantum efficiency and lowering the red border to a value defined by the TS. In contrast to the Fowler quadratic law, the photocurrent scales linearly with photon energy near the red border. The results suggest that the efficiency of hot electron generation with plasmonic metal nanoparticles could reach several tens of percent, which is very attractive for application in energy conversion technologies such as water splitting.

© 2021 Optical Society of America

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