Giant Bulk Electrophotovoltaic Effect in Heteronodal-Line Systems
Giant Bulk Electrophotovoltaic Effect in Heteronodal-Line Systems
Realization of giant and continuously tunable second-order photocurrent is desired for many nonlinear optical (NLO) and optoelectronic applications, which remains to be a great challenge. Here, based on a simple two-band model, we propose a concept of bulk electro-photovoltaic effect, that is, an out-of-plane external electric-field ($E_{ext}$) can continuously tune …