Effect of oxygen vacancies on electronic structures and field emission properties of TiO2 nanotubes: A density-functional theory investigation

Hua-Xi Zhang, Ming Zhao, and Qing Jiang

Influence of oxygen vacancies (VO’s) on electronic structures and field emission properties of TiO2 nanotubes (NTs) is investigated by first-principle calculations. It is demonstrated that the formation of 3-fold coordinated VO gives rise to two shallow donor states below the conduction band minim ... [Appl. Phys. Lett. 103, 023111 (2013)] published Thu Jul 11, 2013.



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Electronic band structure of wurtzite GaP nanowires via temperature dependent resonance Raman spectroscopy

Jaya Kumar Panda, Anushree Roy, and Mauro Gemmi et al.

Resonance Raman measurements are carried out on defect-free wurtzite GaP nanowires over the excitation energy range between 2.19 and 2.71 eV. Resonances of the E1(LO) and A1(LO) modes demonstrate the existence of energy states with Γ9hh and Γ7V (Γ7C) symmetries of the valence (conduction) band and ... [Appl. Phys. Lett. 103, 023108 (2013)] published Thu Jul 11, 2013.



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Rotating-frame nuclear magnetic resonance study of the distinct dynamics of hydrogen donors in ZnO

Jun Kue Park, Kyu Won Lee, and Cheol Eui Lee

The rotating-frame spin-lattice relaxation of two types of the hydrogen donors was well distinguished in the 1H nuclear magnetic resonance measurements in a sol-gel prepared ZnO system, providing a unique opportunity to study the distinct proton dynamics. Our study indicates interconversion of the ... [Appl. Phys. Lett. 103, 023109 (2013)] published Thu Jul 11, 2013.



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Selective adsorption of metal-phthalocyanine on Au(111) surface with hydrogen atoms

L. W. Liu, K. Yang, and W. D. Xiao et al.

Metal phthalocyanine (MPc, M = Mn, Fe) molecules grown on reconstructed Au(111) with and without hydrogen atoms at submonolayer coverage are investigated by low temperature scanning tunneling microscopy. It is found out that the attachment of H atoms to the central metal of the MnPc molecules lead ... [Appl. Phys. Lett. 103, 023110 (2013)] published Thu Jul 11, 2013.



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High speed DNA denaturation using microheating devices

Masayuki Furuhashi, Yukihiro Okamoto, and Daisuke Onoshima et al.

Denaturation is a first step for further treatment of DNA and is expected to be carried out rapidly on an integrated chip. A microheater is a promising device for the denaturation because of easiness for fabrication and operation. In the present study, we fabricated a microheater and thermometers ... [Appl. Phys. Lett. 103, 023112 (2013)] published Thu Jul 11, 2013.



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