  The electron antineutrino spectrum in the Stereo reactor experiment (ILL
Grenoble) is measured via the inverse beta decay signals in an organic liquid
scintillator. The six target cells of the Stereo detector are filled with about
1800 litres of Gd-loaded liquid scintillator optimised for the requirements of
the experiment. These target cells are surrounded by similar cells containing
liquid scintillator without the Gd-loading. The development and characteristics
of these scintillators are reported. In particular, the transparency, light
production and pulse shape discrimination capabilities of the organic liquids
are discussed.
