Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique

Nickel oxide, a stable inorganic p-type semiconductor with wide bandgap is an attractive hole transport material for the perovskite-based solar cells. Doping the nickel oxide with group-1 elements such as lithium, sodium, and potassium is found to increase the conductivity of the film. In the presen...

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Main Authors: Arunodaya J, Trilochan Sahoo
Format: Article
Language:English
Published: IOP Publishing 2019-01-01
Series:Materials Research Express
Subjects:
Online Access:https://doi.org/10.1088/2053-1591/ab5bf1
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author Arunodaya J
Trilochan Sahoo
author_facet Arunodaya J
Trilochan Sahoo
author_sort Arunodaya J
collection DOAJ
description Nickel oxide, a stable inorganic p-type semiconductor with wide bandgap is an attractive hole transport material for the perovskite-based solar cells. Doping the nickel oxide with group-1 elements such as lithium, sodium, and potassium is found to increase the conductivity of the film. In the present work lithium doped and undoped nickel oxide thin films are coated on the glass substrate by spin coating method under ambient conditions, and the effects of doping are investigated. The structural, electrical and optical properties have been studied for different doping concentrations. X-ray diffraction confirms the formation of single-phase cubic nickel oxide. It is found that the conductivity increases nine times as the lithium concentration increases. The UV–vis spectroscopy measurement modulates the bandgap with the increase in the lithium-ion concentration.
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spelling doaj.art-5287f92e152e463aa7ee8a747bb5b2192023-08-09T15:20:32ZengIOP PublishingMaterials Research Express2053-15912019-01-017101640510.1088/2053-1591/ab5bf1Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating techniqueArunodaya J0https://orcid.org/0000-0002-8839-5400Trilochan Sahoo1https://orcid.org/0000-0002-5059-4586Department Of Physics And Nanotechnology, SRM Institute Of Science And Technology, Kattankulathur, Chennai 603203, Tamil Nadu, IndiaDepartment Of Physics And Nanotechnology, SRM Institute Of Science And Technology, Kattankulathur, Chennai 603203, Tamil Nadu, IndiaNickel oxide, a stable inorganic p-type semiconductor with wide bandgap is an attractive hole transport material for the perovskite-based solar cells. Doping the nickel oxide with group-1 elements such as lithium, sodium, and potassium is found to increase the conductivity of the film. In the present work lithium doped and undoped nickel oxide thin films are coated on the glass substrate by spin coating method under ambient conditions, and the effects of doping are investigated. The structural, electrical and optical properties have been studied for different doping concentrations. X-ray diffraction confirms the formation of single-phase cubic nickel oxide. It is found that the conductivity increases nine times as the lithium concentration increases. The UV–vis spectroscopy measurement modulates the bandgap with the increase in the lithium-ion concentration.https://doi.org/10.1088/2053-1591/ab5bf1NiOlithiumperovskite solar celldoping
spellingShingle Arunodaya J
Trilochan Sahoo
Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique
Materials Research Express
NiO
lithium
perovskite solar cell
doping
title Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique
title_full Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique
title_fullStr Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique
title_full_unstemmed Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique
title_short Effect of Li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique
title_sort effect of li doping on conductivity and band gap of nickel oxide thin film deposited by spin coating technique
topic NiO
lithium
perovskite solar cell
doping
url https://doi.org/10.1088/2053-1591/ab5bf1
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AT trilochansahoo effectoflidopingonconductivityandbandgapofnickeloxidethinfilmdepositedbyspincoatingtechnique