The potential different or “push†between two points.
Glossary
titanium dioxide
A semiconductor consisting of a combination of the elements titanium and oxygen.
total internal reflection
The way light can travel through a substance by bouncing off the “walls†so that the light is always confined within the substance.
solar cell
A device that converts sunlight into electricity.
series circuit
A circuit in which the power source is connected up to the components one after another. If the circuit breaks anywhere, none of the components […]
semiconductor
A substance that conducts electricity under certain conditions.
quantum dots (q-dots)
Semiconductor nanocrystals that are very small crystals between 2 and 10 nanometres in diameter.
proton
A positively charged particle found at the centre of an atom.
polymer
A long chain of repeating units.
photovoltaic
Used to describe something that converts light energy into electrical energy.