Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Motooka744, Nishi-ku, Fukuoka 819-0395, Japan.
J Am Chem Soc. 2011 Sep 21;133(37):14771-7. doi: 10.1021/ja2055885. Epub 2011 Aug 25.
We describe the design, synthesis, and characterization of a supramolecular hybrid of gold nanometals and semiconducting single-walled carbon nanotubes (SWNTs) wrapped by a porphyrin-fluorene copolymer (1), as well as fabrication of a thin-film transistor (TFT) device using the hybrid. Photoluminescence mapping revealed that the copolymer selectively dissolved SWNTs with chirality indices of (8,6), (8,7), (9,7), (7,6), and (7,5); dissolution of (8,6), and (8,7) SWNTs was especially efficient. The solubilized SWNTs were connected to gold nanoparticles (AuNPs) via a coordination bond to prepare a supramolecular hybrid composed of AuNPs/copolymer 1-wrapped SWNTs, which were studied by atomic force and scanning and transmission electron microscopies. A fabricated TFT device using the semiconducting SWNTs/copolymer 1 shows evident p-type transport with an On/Off ratio of ~10(5). The transport properties of the TFT changed after coordination of the AuNPs with the SWNTs/copolymer 1.
我们描述了一种金纳米金属和被卟啉-芴共聚物（1）包裹的半导体单壁碳纳米管（SWNTs）的超分子杂化物的设计、合成和特性，以及使用该杂化物制造薄膜晶体管（TFT）器件。荧光映射显示，该共聚物选择性地溶解手性指数为（8,6）、（8,7）、（9,7）、（7,6）和（7,5）的 SWNTs；（8,6）和（8,7）SWNTs 的溶解尤为有效。溶解的 SWNTs 通过配位键与金纳米粒子（AuNPs）连接，制备由 AuNPs/共聚物 1 包裹的 SWNTs 组成的超分子杂化物，通过原子力和扫描及透射电子显微镜进行研究。使用半导体 SWNTs/共聚物 1 的制造的 TFT 器件显示出明显的 p 型传输，开关比约为 10(5)。AuNPs 与 SWNTs/共聚物 1 的配位后，TFT 的传输性能发生了变化。
