quantum efficiency

noun

1. physics the number of electrons released by a photocell per photon of incident radiation of a given energy
2. chem the number of chemical species that undergo reaction per photon of absorbed radiation of a given energy

Example Sentences

The researchers tested the photovoltaic performance of the device under 1 sun of illumination with a solar simulator and measured its quantum efficiency.

From Science Daily

Under laboratory conditions, the COFs demonstrate a quantum efficiency of 17.5 per cent under visible light at 420 nm in batch reactors.

From Science Daily

Subsequent optical experiments revealed that the blue- and green-emitting supramolecular ink compounds exhibit what scientists call near-unity quantum efficiency.

From Science Daily

PHOLEDs have nearly 100% internal quantum efficiency, meaning all of the electricity entering the device is used to create light.

From Science Daily

But when nature — say, a spinach leaf, piece of seaweed or bacterium — converts solar power into usable energy via photosynthesis, it does so with a quantum efficiency of one.

From Salon