Growth of Close-Packed Semiconducting Single-Walled Carbon Nanotube   Arrays Using Oxygen-Deficient TiO2 Nanoparticles as Catalysts

doi:10.1021/nl5037325

CORC > 北京大学 > 信息科学技术学院

	Growth of Close-Packed Semiconducting Single-Walled Carbon Nanotube Arrays Using Oxygen-Deficient TiO2 Nanoparticles as Catalysts
	Kang, Lixing ; Hu, Yue ; Liu, Lili ; Wu, Juanxia ; Zhang, Shuchen ; Zhao, Qiuchen ; Ding, Feng ; Li, Qingwen ; Zhang, Jin
刊名	nano letters
	2015
关键词	Semiconducting single-walled carbon nanotube arrays oxygen vacancy preferential growth titanium dioxide catalysts CHEMICAL-VAPOR-DEPOSITION TOTAL-ENERGY CALCULATIONS WAVE BASIS-SET SELECTIVE SYNTHESIS LARGE-DIAMETER HIGH-DENSITY METAL CHIRALITY PHOTOCATALYSIS ELECTRONICS
DOI	10.1021/nl5037325
英文摘要	For the application of single-walled carbon nanotubes (SWNTs) in nanoelectronic devices, techniques to obtain horizontally aligned semiconducting SWNTs (s-SWNTs) with higher densities are still in their infancy. We reported herein a rational approach for the preferential growth of densely packed and well-aligned s-SWNTs arrays using oxygen-deficient TiO2 nanoparticles as catalysts. Using this approach, a suitable concentration of oxygen vacancies in TiO2 nanoparticles could form by optimizing the flow rate of hydrogen and carbon sources during the process of SWNT growth, and then horizontally aligned SWNTs with the density of similar to 10 tubes/mu m and the s-SWNT percentage above 95% were successfully obtained on ST-cut quartz substrates. Theoretical calculations indicated that TiO2 nanoparticles with a certain concentration of oxygen vacancies have a lower formation energy between s-SWNT than metallic SWNT (m-SWNT), thus realizing the preferential growth of s-SWNT arrays. Furthermore, this method can also be extended to other semiconductor oxide nanoparticles (i.e., ZnO, ZrO2 and Cr2O3) for the selective growth of s-SWNTs, showing clear potential to the future applications in nanoelectronics.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000348086100064&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter; SCI(E); EI; 10; ARTICLE; qwli2007@sinano.ac.cn; jinzhang@pku.edu.cn; 1; 403-409; 15
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/387205]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Kang, Lixing,Hu, Yue,Liu, Lili,et al. Growth of Close-Packed Semiconducting Single-Walled Carbon Nanotube Arrays Using Oxygen-Deficient TiO2 Nanoparticles as Catalysts[J]. nano letters,2015.
APA	Kang, Lixing.,Hu, Yue.,Liu, Lili.,Wu, Juanxia.,Zhang, Shuchen.,...&Zhang, Jin.(2015).Growth of Close-Packed Semiconducting Single-Walled Carbon Nanotube Arrays Using Oxygen-Deficient TiO2 Nanoparticles as Catalysts.nano letters.
MLA	Kang, Lixing,et al."Growth of Close-Packed Semiconducting Single-Walled Carbon Nanotube Arrays Using Oxygen-Deficient TiO2 Nanoparticles as Catalysts".nano letters (2015).