light ( > 1. 25 eV) to electrical energy has been obtained using wet photoelectrochemical cells where there are no net chemical changes in the system. Stabilization of n-type semi-conductor anodes of CdS, CdSe, CdTe, GaP, GaAs and InP to photoanodic dissolution is achieved by employing ...
Electrocatalytic hydrogen production using inexpensive catalysts and solar energy has become a critical research direction due to its economic interest and environmental friendliness. Photoresponsive semiconductors play a key role in this field. In this work, we demonstrate visible light-responsive, mixed...
Ultraviolet-visible diffuse reflectance spectroscopy was used to investigate the light-absorbing properties of YMnO3 nanoparticles,and the value of the optical bandgap energy is obtained to be 1.31 eV. The photocatalytic activity of YMnO3 nanoparticles was investigated by the degradation of methyl red....
Photoferroelectrics offer unique opportunities to explore light energy conversion based on their polarization-driven carrier separation and above-bandgap voltages. The problem associated with the wide bandgap of ferroelectric oxides, i.e., the vanishingl
Fig. 2.1. The spectral power distribution of CIE Illuminant D65 has more energy in the ultraviolet wavelengths than CIE Illuminant C. Manufacturers of light booths and color measuring instruments have tried to duplicate D65 (and other daylight illuminants) with light sources. Procedures and techniqu...
The emission energy range corresponds to a crystallite size of 10\char21{}35 \AA{}. A model of the quantum dot is suggested from an infrared spectroscopic measurement of the chemical bond structures of oxide films. The stable light emissions from both the as-deposited and the rapid thermal ...
Polaritons in a semiconductor microcavity excited below the free exciton energy have been studied by pump-and-probe experiments. The excitation results in ... DN Krizhanovskii,G Dasbach,AA Dremin,... - 《Solid State Communications》 被引量: 13发表: 2001年 Tunable NIR filter based on a free...
It is not only expensive and energy-intensive, but also prone to overhydrogenating to ethane. Here we report a photocatalytic system that reduces acetylene to ethylene with ≥99% selectivity under both non-competitive (no ethylene co-feed) and competitive (ethylene co-feed) conditions, and near...
The as-prepared g-C3N4materials with strong visible light absorption have a band gap around 2.7 eV. The crystallinity and specific surface areas of g-C3N4increases simultaneously when the heating temperatures increases. The g-C3N4materials are demonstrated to exhibit much higher visible light ...
ensure the embedding of IrIIIcomplex into the MOF. As shown in Fig.2c, there are two N 1speaks of binding energy (BE) in UiO-67-Ir, signifying two kinds of coordination environment of N atoms. The BE of N 1speak at 398.8 eV can be ascribed to the N atoms in free bpy ligand...