CNT array-induced nanobubble assembly,nanodisk fabrication and enhanced spectral detection of CNT bundle density

作     者：Zhiyuan Xia Ziming Ye Bo Zhao Tingsong Zhang Qi Wang Kun Chen Meng Li Xiaobing Kong Yu-Qing Zheng Enzheng Shi Yuanyuan Shang Anyuan Cao 

作者机构：School of Materials Science and EngineeringPeking UniversityBeijing 100871China School of Integrated CircuitsPeking UniversityBeijing 100871China School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001China School of EngineeringWestlake UniversityHangzhou 310024China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2024年第17卷第8期

页      面：7737-7745页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(No.51872267) the Natural Science Foundation of Beijing(No.2212028) the Program for Science&Technology Innovation Talents in Universities of Henan Province(No.21HASTIT017) 

主　　题：CNT arrays nanobubbles self-assembly nanodisks surface-enhanced Raman scattering(SERS) 

摘      要：Alignment,functionalization and detection of carbon nanotube(CNT)bundles are vital processes for utilizing this onedimensional nanomaterial in ***,we report a polymer-assisted wet shearing method to acquire super-aligned craterpatterned CNT arrays by nanobubble(NB)self-assembly with amigrate and aggregationmechanism and use craters to controllably mold even-sized nanodisks periodically along CNT bundles with tunable *** green,low-cost method can be extended to diverse substrates and fabricate different *** an example,the Ag-nanodisk-patterned CNT arrays are utilized as substrates of surface-enhanced Raman scattering(SERS)for rhodamine 6G(R6G)and methylene blue(MB)in which a linear correlation is found between the SERS intensity and the CNT bundle density due to the periodic distribution of hot spots,enabling a spectral detection of CNT bundles and their densities by conventional dye *** from routine morphological characterization,this spectral method possesses an enhanced accuracy and a detection range of 0.1–2μm^(–1),showing its uniqueness in the detection of CNT bundle density since the intensity of traditional spectral merely relates to the quantity of CNTs,exhibiting its potential in future CNT-bundle-based electronics.