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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 cm2 V−1 S−1 at room temperature, which is much higher than the typical value of ~10−1–10 cm2 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.
copper compounds, energy gap, hole mobility, optoelectronic devices, strontium compounds, wide band gap semiconductors
Liu, M., Wu, L., Chen, Q., Chen, L., & Chen, I. (2007). A promising p-type transparent conducting material: Layered oxysulfide. Retrieved from https://repository.upenn.edu/mse_papers/139
Date Posted: 31 January 2008
This document has been peer reviewed.