Source/drain electrodes, thin-film transistor substrates, manufacture methods thereof, and display devices

A source/drain electrode for use in a thin-film transistor substrate comprising a substrate, a thin-film transistor semiconductor layer, source/drain electrodes, and a transparent picture electrode,

• the source/drain electrode comprising a nitrogen-containing layer and a thin film of pure aluminum or an aluminum alloy,
• wherein the source/drain electrode is so configured that nitrogen of the nitrogen-containing layer binds to silicon of the thin-film transistor semiconductor layer, and
• wherein the source/drain electrode is so configured that the thin film of pure aluminum or aluminum alloy is connected to the thin-film transistor semiconductor layer through the nitrogen-containing layer.