The energy of the triplet states are smaller than or equal to half of the singlet ( S 1 ) state energy, thus satisfying the requirement of S 1 e " 2T 1.
42.
Chelation of paramagnetic metals to a PC chromophore appears to shorten triplet lifetimes ( down to nanosecond range ), generating variations in the triplet quantum yield and triplet lifetime of the photoexcited triplet state.
43.
The electron and positron in positronium can also have identical or " parallel " spin orientations, which results in an experimentally distinct form of positronium with a spin 1 or triplet state.
44.
E . g ., N, N-dimethylaniline, used as a probe for the carbonate radical reacts very quickly with DOM-excited triplet states and its oxidation is hampered by DOM.
45.
Phosphorescent organic light-emitting diodes make use of spin orbit interactions to facilitate intersystem crossing between singlet and triplet states, thus obtaining emission from both singlet and triplet states and improving the internal efficiency.
46.
Phosphorescent organic light-emitting diodes make use of spin orbit interactions to facilitate intersystem crossing between singlet and triplet states, thus obtaining emission from both singlet and triplet states and improving the internal efficiency.
47.
The diagram also shows the non-radiative and infrared competing decay paths between the two singlet states, and the fine splitting in the triplet states, whose differences in energy correspond to microwave frequencies.
48.
Once energy from this absorbed electron is transferred in this triplet state, electron transition back to the lower singlet energy states is quantum mechanically forbidden, meaning that it happens much more slowly than other transitions.
49.
As electrons and holes are fermions with half integer spin, an exciton may either be in a singlet state or a triplet state depending on how the spins of the electron and hole have been combined.
50.
The triplet states decay with a much longer decay time than singlet states, which results in what is called the slow component of the decay process ( the fluorescence process is called the fast component ).
