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searching for Photoexcitation 47 found (79 total)

Photoisomerization (784 words) [view diff] exact match in snippet view article find links to article

chemistry, photoisomerization is a form of isomerization induced by photoexcitation. Both reversible and irreversible photoisomerizations are known for

Sultana N. Nahar (425 words) [view diff] exact match in snippet view article find links to article

on atomic processes of photoionization, electron-ion recombination, photoexcitation, collision. Her contributions include development of the unified method

Piezotronics (757 words) [view diff] exact match in snippet view article find links to article

such as ZnO, GaN and InN. Three-way coupling among piezoelectricity, photoexcitation and semiconductor is the basis of piezotronics (piezoelectricity-semiconductor

Piezophototronics (719 words) [view diff] exact match in snippet view article find links to article

as ZnO, GaN and InN. the three-way coupling among piezoelectricity, photoexcitation and semiconductor properties, which is the basis of piezotronics

Hidden states of matter (1,052 words) [view diff] exact match in snippet view article find links to article

the introductory paragraph. A few further examples are given in ref. Photoexcitation has been shown to produce persistent states in vanadates and manganite

Enone–alkene cycloadditions (1,024 words) [view diff] exact match in snippet view article find links to article

The mechanism of [2+2] photocyclization is proposed to begin with photoexcitation of the enone to a singlet excited state. The singlet state is typically

Jurriaan ten Doesschate (397 words) [view diff] exact match in snippet view article find links to article

röntgenphotogrammen... ten Doesschate, J. & Alpern, M., 1967a. Effect of photoexcitation of the two retinas on pupil size. Journal of neurophysiology, 30(3)

4+4 Photocycloaddition (917 words) [view diff] exact match in snippet view article find links to article

mechanism of the [4+4] photocycloaddition is proposed to begin with the photoexcitation of a 1,3-diene system into the excited state. Because the orbital symmetry

Photochemical reduction of carbon dioxide (978 words) [view diff] exact match in snippet view article find links to article

Photochemical reduction involves chemical reduction (redox) generated from the photoexcitation of another molecule, called a photosensitizer. To harness the sun's

Photoemission spectroscopy (1,218 words) [view diff] exact match in snippet view article find links to article

this equation is the energy of the UV light quanta that are used for photoexcitation. Photoemission spectra are also measured using tunable synchrotron

Bromoiodomethane (306 words) [view diff] exact match in snippet view article find links to article

"Photoisomerization reaction of CH2BrI following A-band and B-band photoexcitation in the solution phase: Transient resonance Raman observation of the

Third-generation photovoltaic cell (1,260 words) [view diff] exact match in snippet view article find links to article

solar photon. Any photon with more energy than the bandgap can cause photoexcitation, but any energy above the bandgap energy is lost. Consider the solar

Camphorquinone (275 words) [view diff] exact match in snippet view article find links to article

(extinction coefficient of 40 M−1·cm−1) giving it a pale yellow color. Photoexcitation results in nearly quantitative formation of its triplet state through

Non-carbon nanotube (1,661 words) [view diff] exact match in snippet view article find links to article

energy transfer from the quantum dot to the non-carbon nanotubes upon photoexcitation. Nanodevices based on one-dimensional nanomaterials are thought for

Photosystem II (2,159 words) [view diff] exact match in snippet view article find links to article

energy and converts it to chemical energy Beta-carotene Quench excess photoexcitation energy Heme B559 Bound to Cytochrome b559 (PsbE–PsbF) as a secondary/protective

Quantum solvent (333 words) [view diff] exact match in snippet view article find links to article

Andreas W.; Ernst, Wolfgang E.; Koch, Markus (2018-10-01). "Femtosecond photoexcitation dynamics inside a quantum solvent". Nature Communications. 9 (1): 4006

Biocatalysis (2,071 words) [view diff] exact match in snippet view article find links to article

Braddock A.; Scholes, Gregory D.; Hyster, Todd K. (2019-06-21). "Photoexcitation of flavoenzymes enables a stereoselective radical cyclization". Science

Photoconductive polymer (2,776 words) [view diff] exact match in snippet view article find links to article

be affected in different aspects: photons absorbed, polymer itself, photoexcitation of photosensitive material. The mechanism for intrinsic photogeneration

Dream (YouTuber) (5,367 words) [view diff] exact match in snippet view article

on June 4, 2021. Alt URL Critique of Dream Investigation Results. Photoexcitation (PDF). December 21, 2020. Archived from the original on December 24

Julia Kalow (860 words) [view diff] exact match in snippet view article find links to article

includes creating polymers with controlled chain lengths using selective photoexcitation. To achieve this, Kalow is developing photochemically gated junctions

LiMETER (655 words) [view diff] exact match in snippet view article find links to article

PM-resident phosphoinositides. Following blue light illumination, photoexcitation generates a covalent adduct between a cysteine residue and the flavin

Abiological nitrogen fixation using homogeneous catalysts (1,123 words) [view diff] exact match in snippet view article find links to article

C.; Blank, David A. (2013). "Relaxation and Dissociation Following Photoexcitation of the (μ-N 2)[Mo(N[t-Bu]Ar)3]2 Dinitrogen Cleavage Intermediate".

Carrier generation and recombination (4,197 words) [view diff] exact match in snippet view article find links to article

Radiative and Nonradiative Processes in Nanocrystalline ZnO Particles upon Photoexcitation". The Journal of Physical Chemistry B. 104 (8): 1715–1723. doi:10.1021/jp993327z

Surface properties of transition metal oxides (4,112 words) [view diff] exact match in snippet view article find links to article

classes. Photoexcitation of the adsorbate which then reacts with the catalyst substrate is classified as a catalyzed photoreaction. Photoexcitation of the

Photoelectric effect (6,563 words) [view diff] exact match in snippet view article find links to article

elaborate one-step model treats the effect as a coherent process of photoexcitation into the final state of a finite crystal for which the wave function

Catherine Asaro bibliography (1,422 words) [view diff] exact match in snippet view article find links to article

Symposium 13, 645 (1979). (Conference proceedings for 1980 JCP article.) "Photoexcitation and Ionization in Molecular Oxygen: Theoretical Studies of Electronic

Phototropin (1,031 words) [view diff] exact match in snippet view article find links to article

mutations resulting in total loss of function of the protein. Upon photoexcitation, the sulfur (yellow) of Cys426 forms a covalent bond with the carbon

Tellurophenes (5,041 words) [view diff] exact match in snippet view article find links to article

Through DFT calculations, it was found that the main transition upon photoexcitation was a HOMO to LUMO+2 transition at 535 nm, with the LUMO+2 state possessing

Photoredox catalysis (6,209 words) [view diff] exact match in snippet view article find links to article

its ground state. The long-lived triplet excited state accessible by photoexcitation is both a more potent reducing agent and a more potent oxidizing agent

Oleg Prezhdo (3,090 words) [view diff] exact match in snippet view article find links to article

“Generation of multiple excitons in PbSe and CdSe quantum dots by direct photoexcitation: first-principles calculations on small PbSe and CdSe clusters”, J

Coherent control (2,852 words) [view diff] exact match in snippet view article find links to article

"Coherent Laser Control of the Product Distribution Obtained in the Photoexcitation of HI". Science. 270 (5233): 77–80. doi:10.1126/science.270.5233.77

Quantum dot solar cell (3,867 words) [view diff] exact match in snippet view article find links to article

ruthenium-polypyridine, which injects electrons into the titanium dioxide upon photoexcitation. This dye is relatively expensive, and ruthenium is a rare metal. Using

Transient receptor potential channel (5,517 words) [view diff] exact match in snippet view article find links to article

insects, a phospholipase C (PLC)-mediated signaling cascade links photoexcitation of rhodopsin to the opening of the TRP/TRPL channels. Although numerous

Zhong Lin Wang (2,852 words) [view diff] exact match in snippet view article find links to article

Characteristics of ZnO Micro/Nanowire Devices by Coupling Piezoelectric and Photoexcitation Effects". ACS Nano. 4 (2): 1234–1240. doi:10.1021/nn901805g. ISSN 1936-0851

Multiple exciton generation (997 words) [view diff] exact match in snippet view article find links to article

A.; Bonn, M.; Levitov, L.F.; Koppens, F.H.L. (24 February 2013). "Photoexcitation cascade and multiple hot-carrier generation in graphene". Nature Physics

Optical properties of carbon nanotubes (4,534 words) [view diff] exact match in snippet view article find links to article

Semiconducting single-walled carbon nanotubes emit near-infrared light upon photoexcitation, described interchangeably as fluorescence or photoluminescence (PL)

Low-energy electron microscopy (2,924 words) [view diff] exact match in snippet view article find links to article

Photoexcitation electron microscopy (PEEM) of Ag rods on Si. Here, an Hg lamp produces photons of energy just above the work function threshold of Ag

Daniel G. Nocera (3,296 words) [view diff] exact match in snippet view article find links to article

and 3,4- dinitrobenzoic acid as an acceptor, his team demonstrated photoexcitation of the Zn porphyrin and an electron transfer process utilizing a hydrogen

Eos (protein) (2,618 words) [view diff] exact match in snippet view article

the elimination reaction. The His-62 side chain is protonated during photoexcitation and assists the reaction by donating a proton to the Phe-61 carbonyl

Tunable metamaterial (4,818 words) [view diff] exact match in snippet view article find links to article

involved. The semiconductor material, such as silicon, is controlled by photoexcitation. This in turn controls, or alters, the effective size of the capacitor

Super-resolution microscopy (10,141 words) [view diff] exact match in snippet view article find links to article

single-molecule kinetic temporal resolutions of ~20 ms under relatively mild photoexcitation intensities, which is useful in studying molecular separation of single

Photoacoustic effect (3,887 words) [view diff] exact match in snippet view article find links to article

D. C.; Gunner, M. R.; Zhang, J. W. (1995). "Volume contraction on photoexcitation of the reaction center from Rhodobacter sphaeroides R-26: Internal

Carlos Silva Acuña (1,504 words) [view diff] exact match in snippet view article find links to article

Klaus, Müllen (2001). "Efficient exciton dissociation via two-step photoexcitation in polymeric semiconductors". Physical Review B. 64 (12): 125211. doi:10

Murburn concept (4,997 words) [view diff] exact match in snippet view article find links to article

retinal pigmented epithelium. In the new charted murburn cascade, photoexcitation of rhodopsin leads to the formation of superoxide, which attacks the

Single-walled carbon nanohorn (7,074 words) [view diff] exact match in snippet view article find links to article

with BSA covalently to form by ZnPc-SWNHox-BSA nanoensembles. Upon photoexcitation, charge separation takes place from the excited singlet state of ZnPc

Tris(cyclooctatetraene)triiron (2,494 words) [view diff] exact match in snippet view article

compound could potentially be susceptible to Fe-Fe bond homolysis via photoexcitation. At the time of discovery, it was the only homoleptic trimetallic non-carbonyl

Quantum Cascade Detector (3,595 words) [view diff] exact match in snippet view article find links to article

single well (vertical transition), in diagonal-transition QCDs the photoexcitation takes place in two adjacent wells, in a bound-to-bound or bound-to-miniband