@article{3caeb44c2445455f8ec4d91f458230f5,
title = "Highly efficient field emission properties of vertically aligned 2D CuSe nanosheets: An experimental and theoretical investigation",
abstract = "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 microscopy (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.",
author = "Jadhav, {Chandradip D.} and Rondiya, {Sachin R.} and Hambire, {Reshma C.} and Baviskar, {Devashri R.} and Deore, {Avinash V.} and Cross, {Russell W.} and Dzade, {Nelson Y.} and Chavan, {Padmakar G.}",
note = "Funding Information: C.D.J. and P.G.C. would like to thank Dr. Bidhan Pandit and Dr. Khemchand Dewangan for providing TEM characterization facility and for fruitful discussion regarding TEM. P.G.C. also thanks the Consortium for Scientific Research ( CSR ) Indore, India for financial support (CSR project - CSR-IC-MSRSR-19/CRS-227/2017–2018/1308 ).S.R.R., R.W.C., and N.Y.D. acknowledge the UK Engineering and Physical Sciences Research Council (EPSRC) for funding (Grant No. EP/S001395/1 ). This work has also used the computational facilities of the Advanced Research Computing at Cardiff (ARCCA) Division, Cardiff University, and HPC Wales. This work also made use of the facilities of ARCHER ( http://www.archer.ac.uk ), the UK{\textquoteright}s national supercomputing service via the membership of the UK's HEC Materials Chemistry Consortium, which is funded by EPSRC ( EP/L000202 ). Information on the data that underpins the results presented here, including how to access them, can be found in the Cardiff University data catalogue at http://doi.org/10.17035/d.2021.0133742344. Funding Information: C.D.J. and P.G.C. would like to thank Dr. Bidhan Pandit and Dr. Khemchand Dewangan for providing TEM characterization facility and for fruitful discussion regarding TEM. P.G.C. also thanks the Consortium for Scientific Research (CSR) Indore, India for financial support (CSR project - CSR-IC-MSRSR-19/CRS-227/2017?2018/1308).S.R.R. R.W.C. and N.Y.D. acknowledge the UK Engineering and Physical Sciences Research Council (EPSRC) for funding (Grant No. EP/S001395/1). This work has also used the computational facilities of the Advanced Research Computing at Cardiff (ARCCA) Division, Cardiff University, and HPC Wales. This work also made use of the facilities of ARCHER (http://www.archer.ac.uk), the UK's national supercomputing service via the membership of the UK's HEC Materials Chemistry Consortium, which is funded by EPSRC (EP/L000202). Information on the data that underpins the results presented here, including how to access them, can be found in the Cardiff University data catalogue at http://doi.org/10.17035/d.2021.0133742344. Publisher Copyright: {\textcopyright} 2021 The Authors",
year = "2021",
month = sep,
day = "15",
doi = "10.1016/j.jallcom.2021.159987",
language = "English (US)",
volume = "875",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
}