Green synthesis of CuxO nanoscale MOS capacitors processed at low temperatures

Handle URI:
http://hdl.handle.net/10754/622679
Title:
Green synthesis of CuxO nanoscale MOS capacitors processed at low temperatures
Authors:
Al-Shehri, Safeyah; Al-Senany, Norah; Altuwirqi, Reem; Bayahya, Amani; Al-Shammari, Fwzah; Wang, Zhenwei; Al-Jawhari, Hala
Abstract:
In this work, we employed two nontoxic green chemistry methods to develop solution-processed copper oxide CuxO thin films at low annealing temperature of 200 °C. The first aqueous precursor of CuxO was prepared by mixing the copper powder with spinach leaves extract, whereas the other solution was formulated using the water-based polyol reduction method of Cu(II) nitrate. The as-prepared precursors were then spun on SiO2/P+ Si substrates to form nanoscale Metal-Oxide-Semiconductor (MOS) capacitors by which some valuable information about the CuxO semiconductor films and their interfaces with dielectric were acquired. Both fabricated MOS capacitors exhibited p-type polarity with negative flat-band voltages. However, the MOS based on spinach extract-CuxO films showed small hysteresis of 100 mV, which could be attributed to its large grain size that sequentially leads to smooth interface and less trap density.
KAUST Department:
Materials Science and Engineering Program
Citation:
Al-Shehri S, Al-Senany N, Altuwirqi R, Bayahya A, Al-Shammari F, et al. (2017) Green synthesis of CuxO nanoscale MOS capacitors processed at low temperatures. Surface and Coatings Technology. Available: http://dx.doi.org/10.1016/j.surfcoat.2017.01.028.
Publisher:
Elsevier BV
Journal:
Surface and Coatings Technology
Issue Date:
10-Jan-2017
DOI:
10.1016/j.surfcoat.2017.01.028
Type:
Article
ISSN:
0257-8972
Sponsors:
The authors would like to thank Dr. Mohamed N. Hedhili and Fan Zhang for their help with the XPS and TEM measurements, respectively.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0257897217300282
Appears in Collections:
Articles; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorAl-Shehri, Safeyahen
dc.contributor.authorAl-Senany, Norahen
dc.contributor.authorAltuwirqi, Reemen
dc.contributor.authorBayahya, Amanien
dc.contributor.authorAl-Shammari, Fwzahen
dc.contributor.authorWang, Zhenweien
dc.contributor.authorAl-Jawhari, Halaen
dc.date.accessioned2017-01-11T12:20:30Z-
dc.date.available2017-01-11T12:20:30Z-
dc.date.issued2017-01-10en
dc.identifier.citationAl-Shehri S, Al-Senany N, Altuwirqi R, Bayahya A, Al-Shammari F, et al. (2017) Green synthesis of CuxO nanoscale MOS capacitors processed at low temperatures. Surface and Coatings Technology. Available: http://dx.doi.org/10.1016/j.surfcoat.2017.01.028.en
dc.identifier.issn0257-8972en
dc.identifier.doi10.1016/j.surfcoat.2017.01.028en
dc.identifier.urihttp://hdl.handle.net/10754/622679-
dc.description.abstractIn this work, we employed two nontoxic green chemistry methods to develop solution-processed copper oxide CuxO thin films at low annealing temperature of 200 °C. The first aqueous precursor of CuxO was prepared by mixing the copper powder with spinach leaves extract, whereas the other solution was formulated using the water-based polyol reduction method of Cu(II) nitrate. The as-prepared precursors were then spun on SiO2/P+ Si substrates to form nanoscale Metal-Oxide-Semiconductor (MOS) capacitors by which some valuable information about the CuxO semiconductor films and their interfaces with dielectric were acquired. Both fabricated MOS capacitors exhibited p-type polarity with negative flat-band voltages. However, the MOS based on spinach extract-CuxO films showed small hysteresis of 100 mV, which could be attributed to its large grain size that sequentially leads to smooth interface and less trap density.en
dc.description.sponsorshipThe authors would like to thank Dr. Mohamed N. Hedhili and Fan Zhang for their help with the XPS and TEM measurements, respectively.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0257897217300282en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Surface and Coatings Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Surface and Coatings Technology, 10 January 2017. DOI: 10.1016/j.surfcoat.2017.01.028en
dc.subjectGreen synthesis of copper oxideen
dc.subjectCuxO MOS capacitorsen
dc.titleGreen synthesis of CuxO nanoscale MOS capacitors processed at low temperaturesen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalSurface and Coatings Technologyen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Physics, King Abdulaziz University, Jeddah 21589, Saudi Arabiaen
kaust.authorAl-Shammari, Fwzahen
kaust.authorWang, Zhenweien
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