نتایج جستجو برای: hybridized ZnO

تعداد نتایج: 25490  

Journal: :Physical chemistry chemical physics : PCCP 2015
Jung-Hoon Lee Woo-Jin Lee Sung-Hoon Lee Seong Min Kim Sungjin Kim Hyun Myung Jang

ZnO has been extensively studied by virtue of its remarkably high piezoelectric responses, especially in nanowire forms. Currently, the high piezoelectricity of wurtzite ZnO is understood in terms of the covalent-bonding interaction between Zn 3d and O 2p orbitals. However, the Zn 3d orbitals are not capable of forming hybridized orbitals with the O 2pz orbitals since the Zn ion is characterize...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2012
Yan Cao Elena Galoppini Pavel Ivanoff Reyes Ziqing Duan Yicheng Lu

A stepwise surface functionalization methodology was applied to nanostructured ZnO films grown by metal organic chemical vapor deposition (MOCVD) having three different surface morphologies (i.e., nanorod layers (ZnO films-N), rough surface films (ZnO films-R), and planar surface films (ZnO films-P). The films were grown on glass substrates and on the sensing area of a quartz crystal microbalan...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2010
H Dixit R Saniz D Lamoen B Partoens

We present the quasiparticle band structure of ZnO in its zincblende (ZB) and rocksalt (RS) phases at the Γ point, calculated within the GW approximation. The effect of the p-d hybridization on the quasiparticle corrections to the band gap is discussed. We compare three systems, ZB-ZnO which shows strong p-d hybridization and has a direct band gap, RS-ZnO which is also hybridized but includes i...

2007
J. W. Chiou S. C. Ray H. M. Tsai C. W. Pao F. Z. Chien W. F. Pong C. H. Tseng J. F. Lee

O Kand Zn and Au L3-edge x-ray absorption near-edge structure XANES , x-ray emission spectroscopy XES , and scanning photoelectron microscopy SPEM are performed to investigate the electronic structure of ZnO nanorods with nanocrystalline nc -Au particles grown on the surfaces. The XANES spectra of nc-Au/ZnO nanorods reveal the decrease of the number of both O 2p and Zn 4s /3d unoccupied states ...

Journal: :Nano letters 2013
Qing Yang Ying Liu Caofeng Pan Jun Chen Xiaonan Wen Zhong Lin Wang

ZnO nanowire inorganic/organic hybrid ultraviolet (UV) light-emitting diodes (LEDs) have attracted considerable attention as they not only combine the high flexibility of polymers with the structural and chemical stability of inorganic nanostructures but also have a higher light extraction efficiency than thin film structures. However, up to date, the external quantum efficiency of UV LED based...

2015
Veeradasan Perumal Uda Hashim Subash C. B. Gopinath R. Haarindraprasad Wei-Wen Liu P. Poopalan S. R. Balakrishnan V. Thivina A. R. Ruslinda Yogendra Kumar Mishra

The creation of an appropriate thin film is important for the development of novel sensing surfaces, which will ultimately enhance the properties and output of high-performance sensors. In this study, we have fabricated and characterized zinc oxide (ZnO) thin films on silicon substrates, which were hybridized with gold nanoparticles (AuNPs) to obtain ZnO-Aux (x = 10, 20, 30, 40 and 50 nm) hybri...

The application of heterogeneous photocatalysis in industrial scale has been hindered by a lack of simple mathematical models that can be easily applied to reactor design and scale-up. This work intends to use a simple mathematical model for predicting methylene blue (MB) degradation in a slurry-annular photocatalytic reactor using zinc oxide (ZnO) hybridized with reduced graphene oxide (rGO)-Z...

Journal: :Journal of Applied Physics 2021

Metallic nanostructures acting as optical nanoantennas can significantly enhance the photoluminescence (PL) of nearby emitters. Albeit luminescence enhancement factors several orders magnitude have been reported for quantum dots or molecules, in case bulk emitters plasmonic is strongly hindered by weak spatial overlap between active medium and electromagnetic modes nanoantenna. Here, we propose...

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