Ferroelectrics And Multiferroics For Next Generation Photovoltaics

Photoactive Brownmillerite Multiferroic KBiFe2O5 and Its Potential Application in Sunlight-Driven Photocatalysis

“…Multiferroics have relatively lower band gaps compared to ferroelectric materials due to the influence of magnetic ordering on electron–electron interaction resulting in a lower band gap as well as improved photocurrents. 5 One of the lead (Pb)-free perovskite multiferroic compounds, which has attracted enormous interest to date, is BiFeO 3 with a band gap of ∼2.6 eV. 6 BiFeO 3 has a lower band gap compared to the typical perovskite ferroelectric material due to the coexistence of both ferroelectric and ferromagnetic characteristics.…”

Physical aspects of ferroelectric semiconductors for photovoltaic solar energy conversion

“…The majority of the studies on ferroelectric photovoltaics has been centered on a restricted set of oxide perovskites and their variational compositions: LiNbO 3 (LNO), BaTiO 3 (BTO), Pb(Zr,Ti)O 3 (PZT), and BiFeO 3 (BFO) (Jalaja and Dutta, 2015). A characteristic configuration is obtained by growing samples of epitaxial quality on a SrRuO 3 layer (SRO) or SrTiO 3 (STO) substrate, and completing the device with a sputtered semitransparent layer of a metal such as Pt.…”

Magnetic response of chlorophyll self-assembly within hydrogel: a mechanistic approach towards enhanced photoharvesting

“…24 Strong intermolecular coupling between closely packed porphyrins is facilitated in the water-rich dielectric environment of hydrogel matrix. This results in redistribution of energetic landscape through pigment-matrix and pigment-pigment interactions (as supported by IR and Raman data) which is reected in red-shied broadened Q band at 673 nm 25,26 [Fig. 1A].…”