Structure of Chemically Passivated Semiconductor Surfaces Determined Using X-Ray Absorption Spectroscopy

ABSTRACTThe structure of monolayer-passivated single crystal semiconductor surfaces has been studied using synchrotron radiation X-ray absorption fine structure spectroscopy (XAFS). The near edge and extended fine structure signals, supported in some cases by first-principles calculations, have been used to investigate Ge(111)-Cl; GaAs(111)-Cl; GaAs(111)A-S, GaAs(111)B-S and GaAs(001)-S. The use of a solid state Ge X-ray fluorescence array detector has led to significant improvements in data quality and thus structural accuracy. The relationship between the derived surface structures and the development of improved passivated surfaces is discussed.

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STRUCTURE OF CHEMICALLY PREPARED PASSIVATION LAYERS ON SINGLE CRYSTAL SEMICONDUCTOR SURFACES

Surface Review and Letters ◽

10.1142/s0218625x99001232 ◽

1999 ◽

Vol 06 (06) ◽

pp. 1109-1120 ◽

Cited By ~ 1

Author(s):

A. P. HITCHCOCK ◽

T. TYLISZCZAK ◽

P. BRODERSEN ◽

Z. H. LU ◽

M. W. C. DHARMA-WARDANA

Keyword(s):

Fine Structure ◽

Synchrotron Radiation ◽

Single Crystal ◽

First Principles ◽

Group Iv ◽

Semiconductor Surfaces ◽

First Principles Calculations ◽

X Ray ◽

Passivation Layers ◽

X Ray Absorption

Monolayers of S and Cl have useful passivation properties for group IV and III–V semiconductor surfaces. The structures of Ge(111)–Cl; GaAs(111)–Cl; GaAs(111)A–S, GaAs(111)B–S and GaAs(001)–S monolayer-passivated single crystal semiconductor surfaces have been studied using synchrotron radiation X-ray absorption fine structure spectroscopy (XAFS). The near edge and extended fine structure signals are interpreted using comparisons to multiple scattering XAFS calculations and, in the cases of Ge(111)–Cl and GaAs(111)–Cl, comparison to first-principles calculations. Relationships between the surface structure and the development of improved passivated surfaces are discussed.

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Ferroelectric distortion inSrTiO3thin films onSi(001)by x-ray absorption fine structure spectroscopy: Experiment and first-principles calculations

Physical Review B ◽

10.1103/physrevb.75.140103 ◽

2007 ◽

Vol 75 (14) ◽

Cited By ~ 51

Author(s):

J. C. Woicik ◽

E. L. Shirley ◽

C. S. Hellberg ◽

K. E. Andersen ◽

S. Sambasivan ◽

...

Keyword(s):

Fine Structure ◽

First Principles ◽

First Principles Calculations ◽

X Ray ◽

Absorption Fine ◽

Spectroscopy Experiment ◽

X Ray Absorption

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Nanoscale disorder and local electronic properties ofCaCu3Ti4O12: An integrated study of electron, neutron, and x-ray diffraction, x-ray absorption fine structure, and first-principles calculations

Physical Review B ◽

10.1103/physrevb.81.144203 ◽

2010 ◽

Vol 81 (14) ◽

Cited By ~ 44

Author(s):

Jin-Cheng Zheng ◽

A. I. Frenkel ◽

L. Wu ◽

J. Hanson ◽

W. Ku ◽

...

Keyword(s):

Fine Structure ◽

Electronic Properties ◽

First Principles ◽

First Principles Calculations ◽

X Ray Diffraction ◽

X Ray ◽

Absorption Fine ◽

X Ray Absorption ◽

Integrated Study

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Chemical forms of molybdenum ion in nitric acid solution studied using liquid-phase X-ray absorption fine structure, Ultraviolet–Visible absorption spectroscopy and first-principles calculations

Chemical Physics Letters ◽

10.1016/j.cplett.2019.02.049 ◽

2019 ◽

Vol 723 ◽

pp. 76-81 ◽

Cited By ~ 2

Author(s):

Shinta Watanabe ◽

Toshikazu Sato ◽

Masato Nakaya ◽

Tomoko Yoshida ◽

Jun Onoe

Keyword(s):

Fine Structure ◽

Nitric Acid ◽

Liquid Phase ◽

First Principles ◽

Chemical Forms ◽

First Principles Calculations ◽

Visible Absorption ◽

X Ray ◽

X Ray Absorption ◽

Visible Absorption Spectroscopy

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Local structure ofCuIn3Se5:X-ray absorption fine structure study and first-principles calculations

Physical Review B ◽

10.1103/physrevb.68.054108 ◽

2003 ◽

Vol 68 (5) ◽

Cited By ~ 23

Author(s):

C.-H. Chang ◽

Su-Huai Wei ◽

J. W. Johnson ◽

S. B. Zhang ◽

N. Leyarovska ◽

...

Keyword(s):

Fine Structure ◽

First Principles ◽

Local Structure ◽

Structure Study ◽

First Principles Calculations ◽

X Ray ◽

Absorption Fine ◽

X Ray Absorption

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First-principles calculations of electron-energy-loss near-edge structure and near-edge x-ray-absorption fine structure of BN polytypes using model clusters

Physical Review B ◽

10.1103/physrevb.60.4944 ◽

1999 ◽

Vol 60 (7) ◽

pp. 4944-4951 ◽

Cited By ~ 55

Author(s):

Isao Tanaka ◽

Hiroyuki Araki ◽

Masato Yoshiya ◽

Teruyasu Mizoguchi ◽

Kazuyoshi Ogasawara ◽

...

Keyword(s):

Fine Structure ◽

Energy Loss ◽

Electron Energy ◽

First Principles ◽

First Principles Calculations ◽

Edge Structure ◽

X Ray ◽

Absorption Fine ◽

Electron Energy Loss ◽

X Ray Absorption

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Local structures and electronic structures of HfON thin films: x-ray absorption fine structure study and first-principles calculations

X-Ray Spectrometry ◽

10.1002/xrs.909 ◽

2006 ◽

Vol 35 (5) ◽

pp. 287-295 ◽

Cited By ~ 1

Author(s):

Sung Kwan Kim ◽

Yangsoo Kim ◽

Kwangsoo No

Keyword(s):

Thin Films ◽

Fine Structure ◽

First Principles ◽

Electronic Structures ◽

Structure Study ◽

First Principles Calculations ◽

X Ray ◽

Local Structures ◽

Absorption Fine ◽

X Ray Absorption

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The structure of Mn-doped tris(8-hydroxyquinoline)gallium by extended x-ray absorption fine structure spectroscopy and first principles calculations

Journal of Applied Physics ◽

10.1063/1.4768841 ◽

2012 ◽

Vol 112 (11) ◽

pp. 113519 ◽

Cited By ~ 5

Author(s):

Shaojie Fang ◽

Zhiyong Pang ◽

Yonghua Du ◽

Lirong Zheng ◽

Xijian Zhang ◽

...

Keyword(s):

Fine Structure ◽

First Principles ◽

First Principles Calculations ◽

X Ray ◽

Absorption Fine ◽

X Ray Absorption ◽

Mn Doped

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Behavior of heptavalent technetium in concentrated triflic acid under alpha-irradiation: technetium-triflate complex characterized by X-ray absorption fine structure spectroscopy and DFT

Radiochimica Acta ◽

10.1515/ract-2016-2603 ◽

2017 ◽

Vol 105 (2) ◽

Cited By ~ 1

Author(s):

Ibtihel Denden ◽

Jérôme Roques ◽

Frederic Poineau ◽

Pier Lorenzo Solari ◽

Michel L. Schlegel ◽

...

Keyword(s):

Fine Structure ◽

First Principles ◽

First Principles Calculations ◽

Triflic Acid ◽

X Ray ◽

Xafs Spectroscopy ◽

Absorption Fine ◽

X Ray Absorption ◽

Alpha Irradiation ◽

Theoretical Results

AbstractThe nature of the Tc species produced after the alpha-irradiation of Tc(VII) in concentrated triflic acid has been investigated by X-ray absoprtion fine structure (XAFS) spectroscopy and first principles calculations. Experimental and theoretical results are consistent with the formation of Tc

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