Effect of transition metal decoration on field emission properties of vertically aligned carbon nanotubes: an interplay between conventional parameters and occupancy of 3d and 4 s states
{"title":"Effect of transition metal decoration on field emission properties of vertically aligned carbon nanotubes: an interplay between conventional parameters and occupancy of 3d and 4 s states","authors":"Gulshan Kumar, Santanu Ghosh, Arushi Arora, Menaka Jha, Pankaj Srivastava","doi":"10.1007/s10854-024-13826-4","DOIUrl":null,"url":null,"abstract":"<div><p>The present work analyses the effect of transition metal decoration on field emission properties of vertically aligned carbon nanotubes (VACNTs). Several transition metals (Co, Ni, Cu, and Zn) have been decorated on VACNTs to examine the role of d-state occupancy on the field emission properties. It is found that d-state occupancy does play a role in governing the current density, and it is not always possible to explain the field emission results only on the basis of conventional parameters like field enhancement factor and work function. The present study shows that among the studied transition metals and their oxides, Zn and CuO-decorated VACNTs give the most promising field emission results.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"35 32","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-024-13826-4","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
The present work analyses the effect of transition metal decoration on field emission properties of vertically aligned carbon nanotubes (VACNTs). Several transition metals (Co, Ni, Cu, and Zn) have been decorated on VACNTs to examine the role of d-state occupancy on the field emission properties. It is found that d-state occupancy does play a role in governing the current density, and it is not always possible to explain the field emission results only on the basis of conventional parameters like field enhancement factor and work function. The present study shows that among the studied transition metals and their oxides, Zn and CuO-decorated VACNTs give the most promising field emission results.
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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