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基于CdS良好的光学性质和单壁碳纳米管(SWCNT)优异的电子学性质,制备了纳米CdS/SWCNT复合材料和纳米CdS/聚乙烯亚胺(PEI)功能化SWCNT复合材料,并利用日光灯光源模拟太阳光研究了它们的光电性质.结果表明,纳米CdS/SWCNT复合材料呈现显著的负光电导现象,而纳米CdS/PEI-SWCNT复合材料呈现强烈的正光电导现象.用电子转移理论对这一结果进行了解释.两样品在大角度弯折的情况下,光电性质均基本没有变化.因此,纳米CdS/碳纳米管复合材料在光电领域,尤其是新兴的柔性光电子学领域有着良好的应用前景.
Based on the good optical properties of CdS and the excellent electronic properties of single-walled carbon nanotubes (SWCNTs), nanostructured CdS / SWCNT composites and nanosized CdS / polyethylenimine (PEI) functionalized SWCNT composites were prepared. The results showed that the CdS / SWCNT composites showed significant negative photoconductivity, while the CdS / PEI-SWCNT composites showed strong positive photoconductivity.Using electron transfer theory The results have been explained.When the two samples are bent at a large angle, the photoelectric properties are basically unchanged.Therefore, the nano-CdS / carbon nanotube composite material has a good application prospect in the field of optoelectronics, especially the emerging field of flexible optoelectronics .