fluorescence yield

[flu̇′res·əns ‚yēld]

(atomic physics)

The probability that an atom in an excited state will emit an x-ray photon in its first transition rather than an Auger electron.

References in periodicals archive ?

The so-called Shockley-Queisser limit assumes 100 percent internal fluorescence yield, as one photon of sunlight can in theory excite one electron in the silicon grid.

Germany : FAU researchers develop innovative dye-sensitized solar cell

At low concentrations, the fluorescence yield of chlorophyll b apparently increased.

Spectroscopic Properties of the Interaction between Chlorophyll and Agrochemicals

The room-temperature fluorescence quantum yields of compounds 3a, 3b and 3c in degassed CH2Cl2 solution have been confirmed by comparing with the known fluorescence yield from PtTPP (I = 0.046) [34].

5,10,15,20-Tetrakis[4-[4-(9H-carbazole-9-yl)butoxy]phenyl]-21H,23H-porphyrin and Its Platinum and Palladium Complexes

The molar extinction coefficient to C1 in dichloromethane as lipophilic environment was [epsilon] 31 717, absorption lab 425 nm, emission lem 530 nm, relative quantum fluorescence yield [F.sub.f] 0,48.

Efecto antimalarico de dos compuestos foto-excitables en un modelo murino con Plasmodium berghei (Haemosporida: Plasmodiidae)

Caption: FIGURE 5: Fe K-edge XANES spectra in fluorescence yield of wool fibre dyed with FeS[O.sub.4] mordant (red) compared to [Fe.sub.2][O.sub.3] (black) and FeO (light blue) standards measured in total electron yield.

[mu]-XRF Studies on the Colour Brilliance in Ancient Wool Carpets

The malate treatment increased leaf malate content, NADPH/NADP ratio, and the initial fluorescence yield (F0) and decreased photosynthetic oxygen evolution, the maximum fluorescence (Fm), the maximal efficiency of PS II photochemistry (Fv/Fm), and the number of active PSII reaction centers per excited cross section (RC/CSm).

Exogenous Malate Application Inhibits the Photochemical Activity of Photosystem II in Rice Leaves

From this curve, the effective quantum yield of PSII [Y-II = ([F.sub.m]'--F')/[F.sub.m]; where F' = fluorescence recorded just before the beginning of a strong light pulse and [F.sub.m], = maximum fluorescence yield when the reaction centers of PSII are closed by a strong light pulse] and the non-photochemical quenching of the fluorescence [NPQ = ([F.sub.m]/ [F.sub.m]')--1, Kooten & Snel, 1990] were obtained.

Physiological characterization of grapevine rootstocks grown in soil with increasing zinc doses/Caracterizacao fisiologica de porta-enxertos de videira cultivados em solo com doses crescentes de zinco

The addition of the herbicide DCMU induces a fast rise of the fluorescence yield during the first 2 ms of illumination; it transforms the regular OJIP sequence into an OJ curve (STRASSER et al., 1995).

The effect of inhibitors on photosynthetic electron transport chain in canola leaf discs/Efeito de inibidores na cadeia de transporte de eletrons fotossintetica em discos foliares de canola

2:00 DISTORTIONS IN 2p4d PARTIAL FLUORESCENCE YIELD FOR 4d ELEMENTS, Alexander Price, Frank de Groot2 and Trinanjan Datta', 'Georgia Regents University, Augusta, GA 30912 and 2Utrecht University, Netherlands.

Section IV: Physics, Mathematics, Computer Science, Engineering and Technology Science Hall W1008 Hasson M. Tavossi, Presiding

Ueno, "A measurement of the air fluorescence yield," Nuclear Instruments and Methods in Physics Research A, vol.

Simulating a measurement of the 2nd knee in the cosmic ray spectrum with an atmospheric fluorescence telescope tower array

The quantum fluorescence yield of MDs in all organic solvents was calculated on the basis of the absorption and fluorescence spectra using

Synthesis of new blue fluorescent polymerizable 1,8-naphthalimides and their copolymers with styrene as sensors for Fe(III) cations

The variable fluorescence yield, [F.sub.v], was determined by [F.sub.m] - [F.sub.0].

Responses of green leaves and green pseudobulbs of CAM orchid Cattleya laeliocattleya aloha case to drought stress