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of the study, carried out the fabrication of LZO films, performed the statistical analysis,
as well as drafted the manuscript. LL participated in the design of the study, carried out the preparation of NiW tapes with different buffer architectures, and revised the manuscript. GX helped to operate the RF magnetron Ribonucleotide reductase sputtering system. YL participated in the design of the study, provided the theoretical and experimental guidance, and revised the manuscript. All authors read and approved the final manuscript.”
“Background A large number of experimental parameters for multi-walled carbon nanotubes (MWNTs) grown by chemical vapor deposition (CVD) have been investigated including the type of thickness of catalytic metal films [1, 2], the substrate temperature [3, 4], the ammonia gas flow rates [5, 6], and supporting substrate, etc. [7, 8]. Among those parameters, the control of the catalyst particles is one of the most important factors that determine the structure and morphology of MWNT properties such as lengths, diameters, and density [9–11]. However, a basic growth mechanism explaining the way metallic atoms interact with carbon to nucleate, grow, and heal carbon nanotubes (CNTs) still needs to be understood. Previously, we investigated the effect of the electrical conductivity of the Si(100) substrate on the control of the growth of MWNTs and found that as the electrical conductivity of the silicon substrate increased, the average diameter of the MWNTs also increased while the density of MWNTs decreased .