However, the quantum yield of these molecules is often very low.

The quantum yields predicted by this model agree very well with the measured data.

Quantum yields are reported and the mechanisms of reaction discussed.

Compounds with quantum yields of 0.10 are still considered quite fluorescent.

There is a marked increase of the quantum yield with the acid concentration.

Measured photobleaching was well described by a model based on quantum yields.

PL efficiency was first found to be low ( 0.01%), but later studies measured much higher quantum yields.

The quantum yields are based both on results from this laboratory and from the literature.

It requires a chemical with a known quantum yield and easily analyzed reaction products.

Here, quantum yield is the emission efficiency of a given fluorophore.

Fluorescence quantum yields are measured by comparison to a standard.

It also has a higher quantum yield than tetramethylrhodamine.

This low quantum yield means that other photochemical processes are occurring.

The quantum yields of the latter two processes were determined using Chalesby–Pinner theory.

Quantum yields of dissociation have the same values for all four species, presumably unity.

The overall decomposition quantum yield is 0.38 at high sulfide pressures.

The quantum yield in neutral solution was approximately 0.11 and independent of wavelength.

Drought stress also reduces the quantum yield of photosystem 2.

The quantum yield of isomerization can be strongly dependent on conditions (see below).

This design strategy has achieved luminescent quantum yields of 42% in the solid state.

The luminescence has a lifetime of several microseconds and the quantum yield below 0.1%.

Quantum yield can also be defined for other events, such as fluorescence:

While extinction coefficients are known (see the table above), quantum yields and life times are not.

An important quantity that can be obtained from the fluence-based rate constant is the quantum yield.

The stilbene loss quantum yields (Φ−S) have been determined in both media.