A plasma display panel (PDP) having improved discharge efficiency, low discharge firing voltage, and high reliability. A plasma display device according to an embodiment of the present invention includes a first substrate and a second substrate spaced apart and facing each other. A plurality of address electrodes are between the first and second substrates. A plurality of barrier ribs are between the first and second substrates and define a plurality of discharge cells and a non-discharge region located between adjacent ones of the discharge cells. A carbon-based material is in the non-discharge region. A phosphor layer is in the plurality of discharge cells. A plurality of display electrodes are between the first and second substrates and extend in a direction crossing the address electrodes.