Electronic Structure of Fluorinated Carbon Nanotubes Studied by X‐ray Absorption and Photoelectron Spectroscopy

Fe phthalocyanine was coordinated to pyridine-modified carbon nanotubes and studied as a catalyst for the oxygen reduction (ORR) and oxygen evolution reactions (OER). X-ray Photoelectron Spectroscopy (XPS), Mössbauer, and Electron...

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Soft X-ray Studies of Pu Electronic Structure: Past Lessons and Future Directions

MRS Proceedings ◽

10.1557/proc-1104-nn07-01 ◽

2008 ◽

Vol 1104 ◽

Author(s):

James G Tobin ◽

SW Yu

Keyword(s):

Electronic Structure ◽

Absorption Spectroscopy ◽

Photoelectron Spectroscopy ◽

Future Directions ◽

X Ray ◽

X Ray Absorption

AbstractPhotoelectron Spectroscopy (PES) [1] and X-ray Absorption Spectroscopy (XAS, Figure 1) [2-4] have contributed greatly to our improved understanding of Pu electronic structure. From these and related measurements, the following has been determined.

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Electronic structure of the Fe-layer-catalyzed carbon nanotubes studied by x-ray-absorption spectroscopy

Applied Physics Letters ◽

10.1063/1.1416165 ◽

2001 ◽

Vol 79 (19) ◽

pp. 3179-3181 ◽

Cited By ~ 26

Author(s):

C. L. Yueh ◽

J. C. Jan ◽

J. W. Chiou ◽

W. F. Pong ◽

M.-H. Tsai ◽

...

Keyword(s):

Carbon Nanotubes ◽

Electronic Structure ◽

Absorption Spectroscopy ◽

X Ray ◽

X Ray Absorption

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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

Journal of Synchrotron Radiation ◽

10.1107/s160057751901381x ◽

2020 ◽

Vol 27 (1) ◽

pp. 83-89

Author(s):

Yuyang Huang ◽

Yaping Li ◽

Meng Wu ◽

Hui-Qiong Wang ◽

Xuebin Yuan ◽

...

Keyword(s):

Electronic Structure ◽

Transition Metal ◽

Metal Oxide ◽

Photoelectron Spectroscopy ◽

Transition Metal Oxide ◽

Material Design ◽

Surface Polarity ◽

X Ray ◽

Nitrogen Ion ◽

X Ray Absorption

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 (000\bar 1)-terminated polar ZnO compound compared with the (10\bar 10)-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 (000\bar 1)-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.

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