Stanford University, Stanford, California 94305, United States.
Nano Lett. 2012 Jul 11;12(7):3574-80. doi: 10.1021/nl301207e. Epub 2012 Jun 13.
MoO(x) has been used for organic semiconductor doping, but it had been considered an inefficient and/or unstable dopant. We report that MoO(x) can strongly and stably dope carbon nanotubes and graphene. Thermally annealed MoO(x)-CNT composites can form durable thin film electrodes with sheet resistances of 100 Ω/sq at 85% transmittance plain and 85 Ω/sq at 83% transmittance with a PEDOT:PSS adlayer. Sheet resistances change less than 10% over 20 days in ambient and less than 2% with overnight heating to 300 °C in air. The MoO(x) can be easily deposited either by thermal evaporation or from solution-based precursors. Excellent stability coupled with high conductivity makes MoO(x)-CNT composites extremely attractive candidates for practical transparent electrodes.
MoO(x) 已被用于有机半导体掺杂，但它被认为是一种低效和/或不稳定的掺杂剂。我们报告称，MoO(x) 可以强烈且稳定地掺杂碳纳米管和石墨烯。经过热退火的 MoO(x)-CNT 复合材料可以形成耐用的薄膜电极，其在 85%透光率下的方阻为 100 Ω/sq，在 83%透光率下加一层 PEDOT:PSS 后的方阻为 85 Ω/sq。在环境条件下，电阻在 20 天内变化小于 10%，在空气中过夜加热至 300°C 时变化小于 2%。MoO(x) 可以通过热蒸发或溶液前驱体制备。高导电性和良好的稳定性使 MoO(x)-CNT 复合材料成为实用透明电极的极具吸引力的候选材料。
