photoexcited


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photoexcited

(ˌfəʊtəʊɪkˈsaɪtɪd)
adj
(Chemistry) chem physics increased in energy due to photoexcitation
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References in periodicals archive ?
Khoie, "Modeling of multiple-quantum-well solar cells including capture, escape, and recombination of photoexcited carriers in quantum wells," IEEE Transactions on Electron Devices, vol.
On the concept of light absorption, only the photons having the energies larger than the bandgap of absorbers can contribute to photoexcited carriers [5].
The adsorbed dye will absorb light and photoexcited electrons will transfer to the conduction band of Ti[O.sub.2].
For example, amorphous Ti[O.sub.2] powders generally exhibit a large specific surface area, but poor photocatalytic activity or negligible due to recombination of electrons and positive holes photoexcited defects (i.e., imperfections, impurities, dangling bonds, or microvoids) located on the surface and in the bulk of the particles [9].
Photodynamic therapy (PDT), a minimally invasive treatment method for a multitude of diseases including cancer, uses reactive oxygen species (ROS) that are generated from photoexcited photosensitizers [1].
So far, theoretical investigations are mainly focused on the first process, which is relevant to energy band configuration because photoexcited carriers are generated only when the incident photon energy is higher than the bandgap of the photocatalyst.
'The information of which valley a photoexcited electron resides in can be described by a spin-like quantity, the valley pseudospin,' Huber explained.
When illuminated, the shells not only emit light of their own, but they also channel photoexcited carriers (excitons) to the cores of the quantum dots, which enhances the laser's core light emission.
The weak peak at 3.448 eV is attributed to recombination between 2DEG and photoexcited holes.
The visible emission is usually attributed to various recombination pathways between photoexcited charges being trapped at defect states within the bandgap.
The overlap between the two plots suggests an energy transfer mechanism from photoexcited [pi]-electron-rich derivative B to ground state electron-deficient TNP.
Excess dye loading can lead to multilayer formation, which causes quenching of the photoexcited electrons and leads to a reduction of charge injection [6].