Surface electronic states and photovoltage gas-sensitive characters of nanocrystalline LaFeO3

Synergetic effect of copper species as cocatalyst on LaFeO3 for enhanced visible-light photocatalytic hydrogen evolution

“…4 [13,26]. As reported, as far as LaFeO 3 is concerned, the charge transfer transitions include transitions of both ligand-to-metal charge transfer and metal-to-metal charge transfer [27]. These appear at 390 and 550 nm, respectively.…”

Perovskite LaFeO3 nanoparticles synthesized by the reverse microemulsion nanoreactors in the presence of aerosol-OT: Morphology, crystal structure, and their optical properties

“…The strong absorption can generally be related to the electronic transition from the valence band to conduction band (O2p→Fe3d). In other words, the valence band of oxide photocatalysts is composed of O2p orbitals and the electronic transition takes place from O2p→Fe3d orbital [30]. According to the literature, the spectrum allows us to estimate the optical band gap (E g ) of 3.85 eV based on the absorption close to 325 nm [31].…”

Multi-Photon Phosphor Feasibility Research

“…It has been shown that understanding the role of a surface in photo-and cathodoluminescence phenomena requires studying the nature of the surface states, local electric fields due to trapped charges and the band structure at surfaces [70][71][72]. For example, luminescence intensity in Y 2 O 3 :Eu and Y 2 SiO 5 :Tb (under low-voltage CR excitation) can to an extent be controlled by impressed external electric fields over phosphor layer [73].…”