Study on the enhanced and stable field emission behavior of a novel electrosprayed Al-doped ZnO bilayer film

Handle URI:
http://hdl.handle.net/10754/594075
Title:
Study on the enhanced and stable field emission behavior of a novel electrosprayed Al-doped ZnO bilayer film
Authors:
Mahmood, Khalid; Munir, Rahim ( 0000-0002-6029-3760 ) ; Swain, Bhabani Sankar; Han, Gill Sang; Kim, Byeong Jo; Jung, Hyun Suk
Abstract:
A novel electrosprayed bilayer film composed of an over-layer (L 2) of aluminium-doped ZnO (AZO) nanoflakes (NF-AZO) and a under-layer (L1) of AZO nanocrystallites structure (NC-AZO) named BL:NF/NC-AZO is studied as an excellent field-emitter. The XRD pattern demonstrated that the doped bilayer film has preferential growth along the c-axis with hexagonal wurtzite structure and the (0 0 2) peak shifted toward the larger angle side after doping. The lowest turn-on field of ∼2.8 V μm-1, highest emission current density of 1.95 mA cm-2 is obtained for BL:NF/NC-AZO under the field of 6.8 V μm-1 and as well as the highest field enhancement factor (β) is estimated to be 4370 ± 3, compared to pure ZnO bilayer film (BL:NF/NC-ZnO) and also better than NC-AZO film and possesses the excellent long term stability of emission current. The PL intensity of doped ZnO bilayer film is very much stronger than pure ZnO bilayer structure. The superior field emission properties are attributed to the better morphologies, Al-doping and better crystallinity of bilayer AZO films. © 2014 The Royal Society of Chemistry.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Mahmood K, Munir R, Swain BS, Han G-S, Kim B-J, et al. (2014) Study on the enhanced and stable field emission behavior of a novel electrosprayed Al-doped ZnO bilayer film. RSC Adv 4: 9072. Available: http://dx.doi.org/10.1039/c3ra46394j.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
RSC Advances
Issue Date:
2014
DOI:
10.1039/c3ra46394j
Type:
Article
ISSN:
2046-2069
Sponsors:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) (2012M3A7B4049967, 2012M3A6A7054861 and 2011-0017210).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMahmood, Khaliden
dc.contributor.authorMunir, Rahimen
dc.contributor.authorSwain, Bhabani Sankaren
dc.contributor.authorHan, Gill Sangen
dc.contributor.authorKim, Byeong Joen
dc.contributor.authorJung, Hyun Suken
dc.date.accessioned2016-01-19T13:20:58Zen
dc.date.available2016-01-19T13:20:58Zen
dc.date.issued2014en
dc.identifier.citationMahmood K, Munir R, Swain BS, Han G-S, Kim B-J, et al. (2014) Study on the enhanced and stable field emission behavior of a novel electrosprayed Al-doped ZnO bilayer film. RSC Adv 4: 9072. Available: http://dx.doi.org/10.1039/c3ra46394j.en
dc.identifier.issn2046-2069en
dc.identifier.doi10.1039/c3ra46394jen
dc.identifier.urihttp://hdl.handle.net/10754/594075en
dc.description.abstractA novel electrosprayed bilayer film composed of an over-layer (L 2) of aluminium-doped ZnO (AZO) nanoflakes (NF-AZO) and a under-layer (L1) of AZO nanocrystallites structure (NC-AZO) named BL:NF/NC-AZO is studied as an excellent field-emitter. The XRD pattern demonstrated that the doped bilayer film has preferential growth along the c-axis with hexagonal wurtzite structure and the (0 0 2) peak shifted toward the larger angle side after doping. The lowest turn-on field of ∼2.8 V μm-1, highest emission current density of 1.95 mA cm-2 is obtained for BL:NF/NC-AZO under the field of 6.8 V μm-1 and as well as the highest field enhancement factor (β) is estimated to be 4370 ± 3, compared to pure ZnO bilayer film (BL:NF/NC-ZnO) and also better than NC-AZO film and possesses the excellent long term stability of emission current. The PL intensity of doped ZnO bilayer film is very much stronger than pure ZnO bilayer structure. The superior field emission properties are attributed to the better morphologies, Al-doping and better crystallinity of bilayer AZO films. © 2014 The Royal Society of Chemistry.en
dc.description.sponsorshipThis work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) (2012M3A7B4049967, 2012M3A6A7054861 and 2011-0017210).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleStudy on the enhanced and stable field emission behavior of a novel electrosprayed Al-doped ZnO bilayer filmen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalRSC Advancesen
dc.contributor.institutionSchool of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, South Koreaen
kaust.authorMunir, Rahimen
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