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Electronic structure variations of polar and nonpolar ZnO lattices with nitrogen‐ion bombardment using synchrotron‐based in situ photoemission and X‐ray absorption spectroscopy.

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Title: Electronic structure variations of polar and nonpolar ZnO lattices with nitrogen‐ion bombardment using synchrotron‐based in situ photoemission and X‐ray absorption spectroscopy.
Authors: Huang, Yuyang1 (AUTHOR), Li, Yaping1,2 (AUTHOR) 374206971@qq.com, Wu, Meng1 (AUTHOR) meng.wu@xmu.edu.cn, Wang, Hui-Qiong1,3 (AUTHOR) hqwang@xmu.edu.cn, Yuan, Xuebin1 (AUTHOR), Gholam, Turghunjan1 (AUTHOR), Zeng, Hui1 (AUTHOR), Wang, Jia-Ou4 (AUTHOR), Wu, Rui4 (AUTHOR), Qian, Hai-Jie4 (AUTHOR), Zhang, Yufeng1 (AUTHOR), Kang, Junyong1 (AUTHOR)
Source: Journal of Synchrotron Radiation. Jan2020, Vol. 27 Issue 1, p83-89. 7p.
Subjects: X-ray absorption, Electronic structure, Chemical bonds, X-ray spectroscopy, Metal oxide semiconductors, Transition metal oxides, Photoemission, Synchrotrons
Abstract: Surface polarity with different crystal orientations has been demonstrated as a crucial parameter in determining the physical properties and device applications in many transition metal oxide and semiconductor compound systems. The influences of surface polarity on electronic structures in nitrogen‐incorporated ZnO lattices have been investigated in the present work. The successful doping of nitrogen atoms in ZnO lattices is suggested by the existence of N‐related chemical bonds obtained from X‐ray photoelectron spectroscopy analysis where a pronounced N–Zn peak intensity has been observed in the ()‐terminated polar ZnO compound compared with the ()‐terminated nonpolar ZnO compound. An energy shift of the valence band maximum towards the Fermi level has been resolved for both polar and nonpolar ZnO lattices, whereas a charge redistribution of the O 2p hybridized states is only resolved for o‐plane ZnO with a polar surface. Angular‐dependent X‐ray absorption analyses at the O K‐edge reveal enhanced surface‐state contributions and asymmetric O 2p orbital occupations in the ()‐terminated o‐plane ZnO compound. The results shed light on the efficient nitrogen doping in ZnO lattices with polar surfaces. The comprehensive electronic structure investigations of correlations between impurity doping and surface polarity in ZnO lattices may also offer guidance for the material design in other transition metal oxide and semiconductor systems. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Synchrotron Radiation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Electronic structure variations of polar and nonpolar ZnO lattices with nitrogen‐ion bombardment using synchrotron‐based in situ photoemission and X‐ray absorption spectroscopy.
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  Data: <searchLink fieldCode="AR" term="%22Huang%2C+Yuyang%22">Huang, Yuyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Yaping%22">Li, Yaping</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> 374206971@qq.com</i><br /><searchLink fieldCode="AR" term="%22Wu%2C+Meng%22">Wu, Meng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> meng.wu@xmu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Hui-Qiong%22">Wang, Hui-Qiong</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> hqwang@xmu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yuan%2C+Xuebin%22">Yuan, Xuebin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gholam%2C+Turghunjan%22">Gholam, Turghunjan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zeng%2C+Hui%22">Zeng, Hui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Jia-Ou%22">Wang, Jia-Ou</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Rui%22">Wu, Rui</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Qian%2C+Hai-Jie%22">Qian, Hai-Jie</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yufeng%22">Zhang, Yufeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kang%2C+Junyong%22">Kang, Junyong</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Synchrotron+Radiation%22">Journal of Synchrotron Radiation</searchLink>. Jan2020, Vol. 27 Issue 1, p83-89. 7p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22X-ray+absorption%22">X-ray absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+structure%22">Electronic structure</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+bonds%22">Chemical bonds</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+spectroscopy%22">X-ray spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+oxide+semiconductors%22">Metal oxide semiconductors</searchLink><br /><searchLink fieldCode="DE" term="%22Transition+metal+oxides%22">Transition metal oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Photoemission%22">Photoemission</searchLink><br /><searchLink fieldCode="DE" term="%22Synchrotrons%22">Synchrotrons</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Surface polarity with different crystal orientations has been demonstrated as a crucial parameter in determining the physical properties and device applications in many transition metal oxide and semiconductor compound systems. The influences of surface polarity on electronic structures in nitrogen‐incorporated ZnO lattices have been investigated in the present work. The successful doping of nitrogen atoms in ZnO lattices is suggested by the existence of N‐related chemical bonds obtained from X‐ray photoelectron spectroscopy analysis where a pronounced N–Zn peak intensity has been observed in the ()‐terminated polar ZnO compound compared with the ()‐terminated nonpolar ZnO compound. An energy shift of the valence band maximum towards the Fermi level has been resolved for both polar and nonpolar ZnO lattices, whereas a charge redistribution of the O 2p hybridized states is only resolved for o‐plane ZnO with a polar surface. Angular‐dependent X‐ray absorption analyses at the O K‐edge reveal enhanced surface‐state contributions and asymmetric O 2p orbital occupations in the ()‐terminated o‐plane ZnO compound. The results shed light on the efficient nitrogen doping in ZnO lattices with polar surfaces. The comprehensive electronic structure investigations of correlations between impurity doping and surface polarity in ZnO lattices may also offer guidance for the material design in other transition metal oxide and semiconductor systems. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Synchrotron Radiation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1107/S160057751901381X
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 83
    Subjects:
      – SubjectFull: X-ray absorption
        Type: general
      – SubjectFull: Electronic structure
        Type: general
      – SubjectFull: Chemical bonds
        Type: general
      – SubjectFull: X-ray spectroscopy
        Type: general
      – SubjectFull: Metal oxide semiconductors
        Type: general
      – SubjectFull: Transition metal oxides
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      – SubjectFull: Photoemission
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      – SubjectFull: Synchrotrons
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      – TitleFull: Electronic structure variations of polar and nonpolar ZnO lattices with nitrogen‐ion bombardment using synchrotron‐based in situ photoemission and X‐ray absorption spectroscopy.
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              M: 01
              Text: Jan2020
              Type: published
              Y: 2020
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