Fig. 2: The optical and photovoltaic properties.
From: Multiferroic oxide BFCNT/BFCO heterojunction black silicon photovoltaic devices
a UV-Vis-NIR spectra of both BFCNT and BFCO, in arbitrary units (a.u.), the inset is the corresponding (αE)2 versus energy plots. b J-V characteristic under AM 1.5 G illumination of the solar cells. The inset shows the energy-level diagram based on UPS results showing the valence, Femi, and conduction energy of each component material
