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Journal Articles

Effects of electronic structure and magnetic performance at the surface/interface of r-GO and TiO2 in r-GO/TiO2 composite thin films: X-ray absorption near-edge structure and x-ray photoelectron spectroscopy

Sekhar C. Ray, Dilip Kumar Mishra, H. T. Wang, Sriparna Bhattacharya (Mitra), W. F. Pong
Journal: AIP Advances
AIP Advances 12, 075101 (2022)
https://doi.org/10.1063/5.0096305
Published: July 2022
View article titled, Effects of electronic structure and magnetic performance at the surface/interface of r-GO and TiO<sub>2</sub> in r-GO/TiO<sub>2</sub> composite thin films: X-ray absorption near-edge structure and x-ray photoelectron spectroscopy
Open the PDF for Effects of electronic structure and magnetic performance at the surface/interface of r-GO and TiO<sub>2</sub> in r-GO/TiO<sub>2</sub> composite thin films: X-ray absorption near-edge structure and x-ray photoelectron spectroscopy in another window
Journal Articles

Possible Ferro-electro-magnetic performance of “reduced graphene oxide” deposited on “ZnO-nanorod (NR) decorated with nanocrystalline (nc) Au particles”

Sekhar C. Ray, W. F. Pong
Journal: AIP Advances
AIP Advances 12, 055008 (2022)
https://doi.org/10.1063/5.0091852
Published: May 2022
View article titled, Possible Ferro-electro-magnetic performance of “<em>reduced graphene oxide</em>” deposited on “<em>ZnO-nanorod</em> (<em>NR</em>) <em>decorated with nanocrystalline</em> (<em>nc</em>) <em>Au particles</em>”
Open the PDF for Possible Ferro-electro-magnetic performance of “<em>reduced graphene oxide</em>” deposited on “<em>ZnO-nanorod</em> (<em>NR</em>) <em>decorated with nanocrystalline</em> (<em>nc</em>) <em>Au particles</em>” in another window
Includes: Supplementary data
Journal Articles

Polyacrylate grafted graphene oxide nanocomposites for biomedical applications

Elison S. Ganya, Navneet Soin, Sabata J. Moloi, James A. McLaughlin, W. F. Pong, Sekhar C. Ray
Journal: Journal of Applied Physics
J. Appl. Phys. 127, 054302 (2020)
https://doi.org/10.1063/1.5135572
Published: February 2020
View article titled, Polyacrylate grafted graphene oxide nanocomposites for biomedical applications
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Journal Articles

Tuning of electronic and magnetic properties of multifunctional r-GO-ATA-Fe2O3-composites for magnetic resonance imaging (MRI) contrast agent

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David O. Idisi, J. A. Oke, Sweety Sarma, S. J. Moloi, Sekhar C. Ray, W. F. Pong, André M. Strydom
Journal: Journal of Applied Physics
J. Appl. Phys. 126, 035301 (2019)
https://doi.org/10.1063/1.5099892
Published: July 2019
View article titled, Tuning of electronic and magnetic properties of multifunctional r-GO-ATA-Fe<sub>2</sub>O<sub>3</sub>-composites for magnetic resonance imaging (MRI) contrast agent
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Includes: Supplementary data
Journal Articles

Defect induced room temperature ferromagnetism in single crystal, poly-crystal, and nanorod ZnO: A comparative study

B. Ghosh, Sekhar C. Ray, Mbule Pontsho, Sweety Sarma, Dilip K. Mishra, Y. F. Wang, W. F. Pong, André M. Strydom
Journal: Journal of Applied Physics
J. Appl. Phys. 123, 161507 (2018)
https://doi.org/10.1063/1.4986606
Published: October 2017
View article titled, Defect induced room temperature ferromagnetism in single crystal, poly-crystal, and nanorod ZnO: A comparative study
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Includes: Supplementary data
Journal Articles

The electronic and magnetic properties of La0.85Zr0.15MnO3 deposited on SrTiO3 and MgO substrates

N. G. Deshpande, C. H. Weng, Y. F. Wang, Y. C. Shao, C. Q. Cheng, D. C. Ling, H. C. Hsueh, C. H. Du, H. M. Tsai, C. W. Pao, H. J. Lin, J. F. Lee, J. W. Chiou, M. H. Tsai, W. F. Pong
Journal: Journal of Applied Physics
J. Appl. Phys. 115, 233713 (2014)
https://doi.org/10.1063/1.4884230
Published: June 2014
View article titled, The electronic and magnetic properties of La<sub>0.85</sub>Zr<sub>0.15</sub>MnO<sub>3</sub> deposited on SrTiO<sub>3</sub> and MgO substrates
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Journal Articles

Coexistence of intrinsic and extrinsic origins of room temperature ferromagnetism in as implanted and thermally annealed ZnO films probed by x-ray absorption spectroscopy

P. Satyarthi, S. Ghosh, B. Pandey, P. Kumar, C. L. Chen, C. L. Dong, W. F. Pong, D. Kanjilal, K. Asokan, P. Srivastava
Journal: Journal of Applied Physics
J. Appl. Phys. 113, 183708 (2013)
https://doi.org/10.1063/1.4804253
Published: May 2013
View article titled, Coexistence of intrinsic and extrinsic origins of room temperature ferromagnetism in as implanted and thermally annealed ZnO films probed by x-ray absorption spectroscopy
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Journal Articles

Publisher’s Note: “Local atomic and electronic structures and ferroelectric properties of PbZr0.52Ti0.48O3: An x-ray absorption study” [Appl. Phys. Lett. 99, 042909 (2011)]

S. C. Ray, H. C. Hsueh, C. H. Wu, C. W. Pao, K. Asokan, M. T. Liu, H. M. Tsai, C. H. Chuang, W. F. Pong, J. W. Chiou, M.-H. Tsai, J. M. Lee, L. Y. Jang, J. M. Chen, J. F. Lee
Journal: Applied Physics Letters
Appl. Phys. Lett. 99, 229901 (2011)
https://doi.org/10.1063/1.3665119
Published: November 2011
View article titled, Publisher’s Note: “Local atomic and electronic structures and ferroelectric properties of PbZr<sub>0.52</sub>Ti<sub>0.48</sub>O<sub>3</sub>: An x-ray absorption study” [Appl. Phys. Lett. 99, 042909 (2011)]
Open the PDF for Publisher’s Note: “Local atomic and electronic structures and ferroelectric properties of PbZr<sub>0.52</sub>Ti<sub>0.48</sub>O<sub>3</sub>: An x-ray absorption study” [Appl. Phys. Lett. 99, 042909 (2011)] in another window
Journal Articles

Local atomic and electronic structures and ferroelectric properties of PbZr0.52Ti0.48O3: An x-ray absorption study

S. C. Ray, H. C. Hsueh, C. H. Wu, C. W. Pao, K. Asokan, M. T. Liu, H. M. Tsai, C. H. Chuang, W. F. Pong, J. W. Chiou, M.-H. Tsai, J. M. Lee, L. Y. Jang, J. M. Chen, J. F. Lee
Journal: Applied Physics Letters
Appl. Phys. Lett. 99, 042909 (2011)
https://doi.org/10.1063/1.3607475
Published: July 2011
View article titled, Local atomic and electronic structures and ferroelectric properties of PbZr<sub>0.52</sub>Ti<sub>0.48</sub>O<sub>3</sub>: An x-ray absorption study
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Includes: Supplementary data
Journal Articles

Determination of the microstructure of Eu-treated ZnO nanowires by x-ray absorption

W. L. Huang, J. Labis, S. C. Ray, Y. R. Liang, C. W. Pao, H. M. Tsai, C. H. Du, W. F. Pong, J. W. Chiou, M.-H. Tsai, H. J. Lin, J. F. Lee, Y. T. Chou, J. L. Shen, C. W. Chen, G. C. Chi
Journal: Applied Physics Letters
Appl. Phys. Lett. 96, 062112 (2010)
https://doi.org/10.1063/1.3304071
Published: February 2010
View article titled, Determination of the microstructure of Eu-treated ZnO nanowires by x-ray absorption
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Journal Articles

Effect of Co, Ni, and Cu substitution on the electronic structure of hexagonal YMnO 3 studied by x-ray absorption spectroscopy

K. Asokan, Y. S. Chen, C. W. Pao, H. M. Tsai, C. W. O. Lee, C. H. Lin, H. C. Hsueh, D. C. Ling, W. F. Pong, J. W. Chiou, M.-H. Tsai, O. Peña, C. Moure
Journal: Applied Physics Letters
Appl. Phys. Lett. 95, 131901 (2009)
https://doi.org/10.1063/1.3224905
Published: September 2009
View article titled, Effect of Co, Ni, and Cu substitution on the electronic structure of hexagonal YMnO 3 studied by x-ray absorption spectroscopy
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Journal Articles

Field emission effects of nitrogenated carbon nanotubes on chlorination and oxidation

S. C. Ray, U. Palnitkar, C. W. Pao, H. M. Tsai, W. F. Pong, I-Nan Lin, P. Papakonstantinou, Abhijit Ganguly, L. C. Chen, K. H. Chen
Journal: Journal of Applied Physics
J. Appl. Phys. 104, 063710 (2008)
https://doi.org/10.1063/1.2981090
Published: September 2008
View article titled, Field emission effects of nitrogenated carbon nanotubes on chlorination and oxidation
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Journal Articles

Mg-induced increase of band gap in Zn 1 − x Mg x O nanorods revealed by x-ray absorption and emission spectroscopy

J. W. Chiou, H. M. Tsai, C. W. Pao, F. Z. Chien, W. F. Pong, C. W. Chen, M.-H. Tsai, J. J. Wu, C. H. Ko, H. H. Chiang, H.-J. Lin, J. F. Lee, J.-H. Guo
Journal: Journal of Applied Physics
J. Appl. Phys. 104, 013709 (2008)
https://doi.org/10.1063/1.2951939
Published: July 2008
View article titled, Mg-induced increase of band gap in Zn 1 − x Mg x O nanorods revealed by x-ray absorption and emission spectroscopy
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Journal Articles

Field emission enhancement in nitrogen-ion-implanted ultrananocrystalline diamond films

P. T. Joseph, N. H. Tai, Chi-Young Lee, H. Niu, W. F. Pong, I. N. Lin
Journal: Journal of Applied Physics
J. Appl. Phys. 103, 043720 (2008)
https://doi.org/10.1063/1.2885348
Published: February 2008
View article titled, Field emission enhancement in nitrogen-ion-implanted ultrananocrystalline diamond films
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Journal Articles

Enhancement of Si–O hybridization in low-temperature grown ultraviolet photo-oxidized Si O 2 film observed by x-ray absorption and photoemission spectroscopy

H. M. Tsai, S. C. Ray, C. W. Pao, J. W. Chiou, C. L. Huang, C. H. Du, W. F. Pong, M.-H. Tsai, A. Fukano, H. Oyanagi
Journal: Journal of Applied Physics
J. Appl. Phys. 103, 013704 (2008)
https://doi.org/10.1063/1.2828144
Published: January 2008
View article titled, Enhancement of Si–O hybridization in low-temperature grown ultraviolet photo-oxidized Si O 2 film observed by x-ray absorption and photoemission spectroscopy
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Journal Articles

Size dependence of the electronic structures and electron-phonon coupling in ZnO quantum dots

S. C. Ray, Y. Low, H. M. Tsai, C. W. Pao, J. W. Chiou, S. C. Yang, F. Z. Chien, W. F. Pong, M.-H. Tsai, K. F. Lin, H. M. Cheng, W. F. Hsieh, J. F. Lee
Journal: Applied Physics Letters
Appl. Phys. Lett. 91, 262101 (2007)
https://doi.org/10.1063/1.2824396
Published: December 2007
View article titled, Size dependence of the electronic structures and electron-phonon coupling in ZnO quantum dots
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Journal Articles

A comparative study of the electronic structures of oxygen- and chlorine-treated nitrogenated carbon nanotubes by x-ray absorption and scanning photoelectron microscopy

S. C. Ray, C. W. Pao, H. M. Tsai, J. W. Chiou, W. F. Pong, C. W. Chen, M.-H. Tsai, P. Papakonstantinou, L. C. Chen, K. H. Chen
Journal: Applied Physics Letters
Appl. Phys. Lett. 91, 202102 (2007)
https://doi.org/10.1063/1.2807275
Published: November 2007
View article titled, A comparative study of the electronic structures of oxygen- and chlorine-treated nitrogenated carbon nanotubes by x-ray absorption and scanning photoelectron microscopy
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Journal Articles

Anisotropic electronic structure in quasi-one-dimensional K 0.3 Mo O 3 : An angle-dependent x-ray absorption study

H. M. Tsai, K. Asokan, C. W. Pao, J. W. Chiou, C. H. Du, W. F. Pong, M.-H. Tsai, L. Y. Jang
Journal: Applied Physics Letters
Appl. Phys. Lett. 91, 022109 (2007)
https://doi.org/10.1063/1.2756358
Published: July 2007
View article titled, Anisotropic electronic structure in quasi-one-dimensional K 0.3 Mo O 3 : An angle-dependent x-ray absorption study
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Journal Articles

Charge transfer in nanocrystalline- Au ∕ Zn O nanorods investigated by x-ray spectroscopy and scanning photoelectron microscopy

J. W. Chiou, S. C. Ray, H. M. Tsai, C. W. Pao, F. Z. Chien, W. F. Pong, M.-H. Tsai, J. J. Wu, C. H. Tseng, C.-H. Chen, J. F. Lee, J.-H. Guo
Journal: Applied Physics Letters
Appl. Phys. Lett. 90, 192112 (2007)
https://doi.org/10.1063/1.2738369
Published: May 2007
View article titled, Charge transfer in nanocrystalline- Au ∕ Zn O nanorods investigated by x-ray spectroscopy and scanning photoelectron microscopy
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Journal Articles

Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies

S. C. Ray, C. W. Pao, H. M. Tsai, J. W. Chiou, W. F. Pong, C. W. Chen, M.-H. Tsai, P. Papakonstantinou, L. C. Chen, K. H. Chen, W. G. Graham
Journal: Applied Physics Letters
Appl. Phys. Lett. 90, 192107 (2007)
https://doi.org/10.1063/1.2737392
Published: May 2007
View article titled, Electronic structures and bonding properties of chlorine-treated nitrogenated carbon nanotubes: X-ray absorption and scanning photoelectron microscopy studies
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