Title: Highly Efficient Field Emission Properties of Vertically Aligned 2D CuSe Nanosheets: an Experimental and Theoretical Investigation - data

Citation
Jadhav CD, Rondiya SR, Hambire RC, et al. (2021). Highly Efficient Field Emission Properties of Vertically Aligned 2D CuSe Nanosheets: an Experimental and Theoretical Investigation - data. Cardiff University. http://doi.org/10.17035/d.2021.0133742344


Access Rights: Data is provided under a Creative Commons Attribution (CC BY 4.0) licence
Access Method: Click to email a request for this data to opendata@cardiff.ac.uk

Cardiff University Dataset Creators

Dataset Details
Publisher: Cardiff University
Date (year) of data becoming publicly available: 2021
Coverage start date: 23/03/2020
Coverage end date: 19/04/2021
Data format: xlsx
Estimated total storage size of dataset: Less than 100 megabytes
DOI: 10.17035/d.2021.0133742344

Description

We report the synthesis of klockmannite (CuSe) via a three-probe electrochemical set-up (chronoampereometry). The structural properties are examined by X-ray diffraction and Raman spectroscopy. Field emission scanning electron Microscope (FESEM) analysis revealed the formation of vertically aligned CuSe nanosheets with an average thickness of 34 nm and an average lateral size of 700 nm. The CuSe nanosheets exhibit impressive field electron emission characteristics with a turn-on field of 1.4 V/μm for 10 μA/cm2 emission current density. Also, a high current density of 5.8 mA/cm2 is observed at a relatively low applied field of 3.1 V/μm. Complementary first-principles DFT calculations show that CuSe displays metallic conductivity, and the (001) surface has a low work function of 5.12 eV, which is believed to be responsible for the impressive field emission characteristics.

The data underpinning the work is available in the .xlsx format (can be viewed either by MS Office or Libre Office) comprising 3 datasheets named according to their Figure numbers as they appear in the manuscript. The experimental data for XRD, current density vs applied field, Fowler–Nordheim (F-N), emission current stability (I-t) are provided. The data for the optimized structures of the bulk CuSe, CuSe(001) surface, the projected density of states (PDOS), and electrostatic potential for the (001) surface are also given.  

Research results based upon these data are published at https://doi.org/10.1016/j.jallcom.2021.159987



Related Projects

Last updated on 2021-30-04 at 13:23