24 citations · 86 across the 10 of their papers we have counts for
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ZnO Defect Modulation for Efficient Photocatalysis
E. N. Epie, W. K. Chu
We have investigated the combined effect of low-energy self-implantation and thermal annealing on the near-surface defect concentration of ZnO single-crystals. Using ionoluminescen…
Depth evolution of YBa2Cu3O7-d ultrathin films probed by X-ray photoemission spectroscopy
H. W. Seo, Q. Y. Chen, Paul van der Heide +1
X-ray photoemission spectroscopy has been used to investigate the depth dependent crystal structures and chemical compositions of sequentially chemical-etched YBa2Cu3O7-d (YBCO) ul…
Chain-oxygen ordering in twin-free YBa2Cu3O6+x single crystals driven by 20 keV electron irradiation
H. W. Seo, Q. Y. Chen, M. N. Iliev +5
We have examined the effects of 20 keV electron irradiation on [-Cu(1)-O(1)-]n chain oxygen arrangements in oxygen deficient but otherwise twin-free YBa2Cu3O6+x single crystals. Co…
Characterizations of strain and defect free GaN nanorods on Si(111) substrates
H. W. Seo, Q. Y. Chen, M. N. Iliev +4
GaN-nanorods grown on Si(111) substrates are found strain- and defect-free as characterized by micro Raman spectroscopy, secondary electron (SE) and cathode-luminescence (CL) imagi…
Epitaxial GaN Nanorods via Catalytic Capillary Condensation
H. W. Seo, Q. Y. Chen, L. W. Tu +3
Intrinsic catalytic process by capillary condensation of Ga-atoms into nanotrenches, formed among impinging islands during the wurzite-GaN thin film deposition, is shown to be an e…