中文
相关论文

相关论文: Optical Property Study of Charge Compensated (Si, …

200 篇论文

Aliovalent doping in an oxide material introduces modifications in the valence state of the host cation and often leads to tailoring the oxygen content in the lattice. Moreover, if the dopant cation is larger than the host cation, the…

材料科学 · 物理学 2025-03-24 Poonam Singh , P. Maneesha , Manju Kumari , Abdelkrim Mekki , Khalil Harrabi , Somaditya Sen

The controlled modification of the electronic properties of ZnO nanorods via transition metal doping is reported. A series of ZnO nanorods were synthesized by chemical bath growth with varying Co content from 0 to 20 atomic % in the growth…

Undoped and Mn doped ZnO samples with different percentage of Mn content (1 mol%, 2 mol% and 3mol%) were synthesized by a simple solvo-thermal method. We have studied the structural, chemical and optical properties of the samples by using…

材料科学 · 物理学 2007-09-26 K. Rajendran , S. Banerjee , S. Senthilkumaar , T. K. Chini , V. Sengodan

First principles calculations through density functional theory (DFT)+$U$ method were performed to assess the effect of Li interstitial doping on the optoelectronic properties of NiO and of cubic, hexagonal, and monoclinic WO$_3$. The…

Sn$_{0.97-y}$Co$_{0.03}$Ni$_{y}$O$_{2}$ (0 $\leq y \leq$ 0.04) nanocrystals, with average crystallite size in the range of 7.3 nm ($y$=0.00) to 5.6 nm ($y$=0.04), have been synthesized using pH-controlled chemical co-precipitation…

材料科学 · 物理学 2021-09-07 S. Roy , Brijmohan Prajapati , A. Singh , Amish G. Joshi , S. Chatterjee , Anup K. Ghosh

The structural, electronic, and optical properties of metal (Si, Ge, Sn, and Pb) mono- and co-doped anatase TiO$_{2}$ nanotubes are investigated, in order to elucidate their potential for photocatalytic applications. It is found that Si…

介观与纳米尺度物理 · 物理学 2020-04-29 Mohamed M. Fadlallah , Ulrich Eckern

Local and long range structure, optical and photoluminescence properties of sol-gel synthesized Ce1-xNixO2 nanostructures have been studied. The crystal structure, lattice strain and crystallite size have been analyzed. A decrease in…

In this letter, we have investigated the third-order optical nonlinearities of high-quality Ni doped ZnO nanorods crystallized in wurtzite lattice, prepared by the wet chemical method. In our experiments, we found that the two photon…

P mono-doped and (P, N) co-doped ZnO are investigated by the first-principles calculations. It is found that substitutive P defect forms a deep acceptor level at O site (PO) and it behaves as a donor at Zn site (PZn), while interstitial P…

材料科学 · 物理学 2015-05-13 Ren-Yu Tian , Yu-Jun Zhao

Point defects in Ga- and Al-doped ZnO thin films are studied by means of first principles electronic structure calculations. Candidate defects are identified to explain recently observed differences in electrical and spectroscopical…

材料科学 · 物理学 2016-10-06 E. Menéndez-Proupin , P. Palacios , P. Wahnón

By means of first-principles calculations within the density functional theory, we study the structural and optical properties of codoped ZnO nanowires and compare them with those of the bulk and film. It is disclosed that the low…

介观与纳米尺度物理 · 物理学 2012-02-27 Zhuo Xu , Qing-Rong Zheng , Gang Su

A comparative study of the electrical and optical properties has been done on 3d-doped TiO$_2$. Ti$_{1-x}$M$_x$O$_2$ (M= Sc, V, Cr, Mn, Fe, Co, Ni, Cu, Zn) powder and its corresponding pellets, with doping concentration $x= 0.05$. The…

材料科学 · 物理学 2022-10-24 Shashi Pandey , Alok Shukla , Anurag Tripathi

A microscopic theory is presented for the observed electronic disorder in superconducting Bi$_2$Sr$_2$CaCu$_2$O$_{8+\delta}$. The essential phenomenology is shown to be consistent with the existence of two types of interstitial oxygen…

强关联电子 · 物理学 2007-05-23 Sen Zhou , Hong Ding , Ziqiang Wang

Recently the point defect responsible for the intra-3$d$ luminescence of cobalt in doped ZnO samples has been indentified\,\cite{pssb2019}. In this work we further extend our investigation to other point defects in Co-doped ZnO. We use…

材料科学 · 物理学 2020-06-24 Dennis Franke , Michael Lorke , Thomas Frauenheim , A. L. da Rosa

In this work, nonlinear optical properties of Na: ZnO thin films (Na: ZnO) have been experimentally elaborated. The principal possibility to operate the nonlinear optical features using external laser beams is shown. The Na: ZnO films were…

We present a comprehensive study on the structure and optical properties of Mn-and Co-doped ZnO samples prepared via solid-state reaction method with different dopant concentrations and atmospheres. The samples were structural and…

We study the hydrogen effect on the electronic, magnetic and optical properties of Cu$_2$O in presence of different dopants (Na, Li and Ti). The electronic properties calculations show that hydrogen changes the conductivity of Cu$_2$O from…

材料科学 · 物理学 2019-06-28 A. Larabi , A. Mahmoudi , M. Mebarki , M. Dergal

The study particularly focuses on the effect of the Cr co-doping on the structural, optical and magnetic properties of Zn0.99Fe0.01O. Zn0.99-xFe0.01CrxO (x =0, 0.01, 0.03 and 0.05) nanoparticles. Powder x-ray diffraction (XRD) analysis…

材料科学 · 物理学 2021-11-16 H. S. Lokesha , P. Mohanty , C. J. Sheppard , A. R. E. Prinsloo

Structural and Optical properties of the (Na0.5 K0.5)y Li 1-y NbO3 (y = 0.934 & 0.936) ceramics have been explored in terms of the X-Ray diffraction patters, Rietveld analysis, UV-Vis spectroscopy, and Kubelka-Munk functions. Rietveld…

材料科学 · 物理学 2015-06-17 S. K. Mishra , R. K. Mishra , Kumar Brajesh , Rajyavardhan Ray , A. K. Himanshu , N. K. Singh

Due to its wide band gap and high carrier mobility, ZnO is an attractive material for light-harvesting and optoelectronic applications. Its functional efficiency, however, is strongly affected by defect-related in-gap states that open up…

‹ 上一页 1 2 3 10 下一页 ›