Journal
JOURNAL OF APPLIED PHYSICS
Volume 102, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2817643
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Sr3Cu2Sc2O5S2, a layered oxysulfide, composed of anti-PbO-like [Cu2S2] slabs alternating with perovskitelike [Sr3Sc2O5] slabs, was systematically studied as a p-type transparent conducting material. The material has a wide energy gap of 3.1 eV and a p-type electrical conductivity of 2.8 S cm(-1) at room temperature. The hole mobility of +150 cm(2) V-1 S-1 at room temperature, which is much higher than the typical value of similar to 10(-1)-10 cm(2) V-1 S-1 found in other copper compounds. The performances of bulk undoped Sr3Cu2Sc2O5S2 show the promise of copper oxysulfides as a class of p-type transparent conductive materials that is essential for optoelectronic applications. (C) 2007 American Institute of Physics.
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