Study of indium nitride and indium oxynitride band gaps

This work shows the study of the optical band gap of indium oxynitride (InNO) and indium nitride (InN) deposited by magnetron reactive sputtering. InNO shows multi-functionality in electrical and photonic applications, transparency in visible range, wide band gap, high resistivity and low leakage cu...

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Main Authors: M. Sparvoli, R. D. Mansano, J. F. D. Chubaci
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2013-05-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400022&tlng=en
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author M. Sparvoli
R. D. Mansano
J. F. D. Chubaci
author_facet M. Sparvoli
R. D. Mansano
J. F. D. Chubaci
author_sort M. Sparvoli
collection DOAJ
description This work shows the study of the optical band gap of indium oxynitride (InNO) and indium nitride (InN) deposited by magnetron reactive sputtering. InNO shows multi-functionality in electrical and photonic applications, transparency in visible range, wide band gap, high resistivity and low leakage current. The deposition processes were performed in a magnetron sputtering system using a four-inches pure In (99.999%) target and nitrogen and oxygen as plasma gases. The pressure was kept constant at 1.33 Pa and the RF power (13.56 MHz) constant at 250 W. Three-inches diameter silicon wafer with 370 micrometer thickness and resistivity in the range of 10 ohm-centimeter was used as substrate. The thin films were analyzed by UV-Vis-NIR reflectance, photoluminescence (PL) and Hall Effect. The band gap was obtained from Tauc analysis of the reflectance spectra and photoluminescence. The band gap was evaluated for both films: for InNO the value was 2.48 eV and for InN, 1.52 eV. The relative quantities obtained from RBS spectra analysis in InNO sample are 48% O, 12% N, 40% In and in InN sample are 8% O, 65% N, 27% In.
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spelling doaj.art-0c7e499bc20342d4a4e8a218953b95952022-12-21T19:35:44ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392013-05-0116485085210.1590/S1516-14392013005000063Study of indium nitride and indium oxynitride band gapsM. Sparvoli0R. D. Mansano1J. F. D. Chubaci2Universidade de São PauloUniversidade de São PauloUniversidade de São PauloThis work shows the study of the optical band gap of indium oxynitride (InNO) and indium nitride (InN) deposited by magnetron reactive sputtering. InNO shows multi-functionality in electrical and photonic applications, transparency in visible range, wide band gap, high resistivity and low leakage current. The deposition processes were performed in a magnetron sputtering system using a four-inches pure In (99.999%) target and nitrogen and oxygen as plasma gases. The pressure was kept constant at 1.33 Pa and the RF power (13.56 MHz) constant at 250 W. Three-inches diameter silicon wafer with 370 micrometer thickness and resistivity in the range of 10 ohm-centimeter was used as substrate. The thin films were analyzed by UV-Vis-NIR reflectance, photoluminescence (PL) and Hall Effect. The band gap was obtained from Tauc analysis of the reflectance spectra and photoluminescence. The band gap was evaluated for both films: for InNO the value was 2.48 eV and for InN, 1.52 eV. The relative quantities obtained from RBS spectra analysis in InNO sample are 48% O, 12% N, 40% In and in InN sample are 8% O, 65% N, 27% In.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400022&tlng=enindium oxynitridesputteringband gapsemiconductor
spellingShingle M. Sparvoli
R. D. Mansano
J. F. D. Chubaci
Study of indium nitride and indium oxynitride band gaps
Materials Research
indium oxynitride
sputtering
band gap
semiconductor
title Study of indium nitride and indium oxynitride band gaps
title_full Study of indium nitride and indium oxynitride band gaps
title_fullStr Study of indium nitride and indium oxynitride band gaps
title_full_unstemmed Study of indium nitride and indium oxynitride band gaps
title_short Study of indium nitride and indium oxynitride band gaps
title_sort study of indium nitride and indium oxynitride band gaps
topic indium oxynitride
sputtering
band gap
semiconductor
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392013000400022&tlng=en
work_keys_str_mv AT msparvoli studyofindiumnitrideandindiumoxynitridebandgaps
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