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Triplet exciton

When we use the two-band Hamiltonian of Eq.(l) and define the order parameters for the singlet exciton, triplet exciton, and singlet Cooper pair, the mean field Hamiltonian is easily derived [10-17]. Here, we focus three... [Pg.67]

Kolubayev T, Geacintov N E, Paillotin G and Breton J 1985 Domain sizes in chloroplasts and chlorophyll-protein complexes probed by fluorescence yield quenching induced by singlet-triplet exciton annihilation Biochimica Biophys. Acta 808 66-76... [Pg.3031]

The impurities may capture this migrating exciton and lose its excess energy. The mutual annihilation of two or more triplet excitons occurs in the same polymer chain and delayed fluorescence is observed. [Pg.401]

The zero Field splitting (ZFS) parameters D and of the triplet exciton are ... [Pg.110]

Figure 7-30. A-PADMR spectra of P3UT films, measured at [lie resonant fields for spin-1/2 species (solid line) and triplet excitons (dashed line). Figure 7-30. A-PADMR spectra of P3UT films, measured at [lie resonant fields for spin-1/2 species (solid line) and triplet excitons (dashed line).
The lowest excited states in molecular crystals are singlet and triplet excitons [3]. Since it costs coulombic energy to transfer an electron that has been excited optically from the HOMO (highest occupied molecular orbital) to the LUMC)... [Pg.508]

Yersin H (2004) Triplet Emitters for OLED Applications. Mechanisms of Exciton Trapping and Control of Emission Properties. 241 1-6 Yeung LK,see Crooks RM (2001) 212 81-135... [Pg.270]

In electroluminescent applications, electrons and holes are injected from opposite electrodes into the conjugated polymers to form excitons. Due to the spin symmetry, only the antisymmetric excitons known as singlets could induce fluorescent emission. The spin-symmetric excitons known as triplets could not decay radiatively to the ground state in most organic molecules [65], Spin statistics predicts that the maximum internal quantum efficiency for EL cannot exceed 25% of the PL efficiency, since the ratio of triplets to singlets is 3 1. This was confirmed by the performance data obtained from OLEDs made with fluorescent organic... [Pg.6]

See other pages where Triplet exciton is mentioned: [Pg.131]    [Pg.144]    [Pg.152]    [Pg.113]    [Pg.92]    [Pg.302]    [Pg.661]    [Pg.300]    [Pg.314]    [Pg.300]    [Pg.398]    [Pg.176]    [Pg.131]    [Pg.144]    [Pg.152]    [Pg.113]    [Pg.92]    [Pg.302]    [Pg.661]    [Pg.300]    [Pg.314]    [Pg.300]    [Pg.398]    [Pg.176]    [Pg.2495]    [Pg.3031]    [Pg.3031]    [Pg.389]    [Pg.110]    [Pg.116]    [Pg.119]    [Pg.120]    [Pg.125]    [Pg.126]    [Pg.129]    [Pg.136]    [Pg.141]    [Pg.189]    [Pg.332]    [Pg.404]    [Pg.422]    [Pg.434]    [Pg.434]    [Pg.440]    [Pg.441]    [Pg.442]    [Pg.462]    [Pg.463]    [Pg.464]    [Pg.475]    [Pg.502]    [Pg.507]    [Pg.235]    [Pg.71]    [Pg.7]   
See also in sourсe #XX -- [ Pg.299 , Pg.349 ]



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