Departmental Papers (MSE)

Document Type

Journal Article

Date of this Version

December 2007

Abstract

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.

Comments

Copyright 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. Reprinted in Journal of Applied Physics, Volume 102, Issue 11, Article 116108, December 2007.
Publisher URL: http://dx.doi.org/10.1063/1.2817643

Keywords

copper compounds, energy gap, hole mobility, optoelectronic devices, strontium compounds, wide band gap semiconductors

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Date Posted: 31 January 2008

This document has been peer reviewed.