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.
Keywords
copper compounds, energy gap, hole mobility, optoelectronic devices, strontium compounds, wide band gap semiconductors
Date Posted: 31 January 2008
This document has been peer reviewed.
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