Optical properties of transition metal (Mn, Fe and V) doped Zinc Oxide ceramics and thin films

2004 ◽  
Vol 825 ◽  
Author(s):  
Neha Awasthi ◽  
P. Bhattacharya ◽  
R.S. Katiyar
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Band Gap ◽  
Raman Spectra ◽  
Glass Substrates ◽  
Additional Mode ◽  
Doped Zno ◽  
Metal Doped ◽  
Ceramic Targets ◽  
Zno Ceramics

AbstractTransition metal doped (Mn, Fe and V) ZnO ceramics and their thin films were prepared by pulsed laser deposition on glass substrates. The ceramic targets did not show any additional phase formation from XRD measurement, except for high Fe concentrations. Optical absorption showed sub-band gap absorption for Mn doping. The band gap was shifted by 0.06 eV for V doped ZnO as concentration was increased to 10%. Micro Raman spectra showed some defect induced modes for all the transition metals doped ZnO ceramics. In V doped ZnO ceramics there was two phonon induced resonance Raman scattering with increase in dopant concentrations. Raman spectra for thin films did not show any significant additional modes for Mn and Fe. However V doped ZnO thin films showed an additional mode for concentration ≥5 %.

Transition Metal-Doped ZnO: A Comparison of Optical, Magnetic, and Structural Behavior of Bulk and Thin Films

2006 ◽  
Vol 957 ◽  
Author(s):  
William E. Fenwick ◽  
Matthew H. Kane ◽  
Zaili Fang ◽  
Tahir Zaidi ◽  
Nola Li ◽  
...  
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Optical Transmission ◽  
Magnetic Hysteresis ◽  
Structural Quality ◽  
Bulk Crystals ◽  
Transmission Measurements ◽  
Doped Zno ◽  
Metal Doped ◽  
Metal Incorporation

ABSTRACTTransition metal-doped ZnO bulk crystals and thin films have been investigated to determine the effects of transition metal incorporation on optical, magnetic, and structural properties of ZnO. A modified melt growth technique was used to grow bulk Zn1-xMnxO, Zn1-xCoxO, and Zn1-xFexO. Optical transmission measurements show an apparent shift in absorption edge with increasing transition metal incorporation. Raman spectroscopy also shows increasing lattice disorder with increasing transition metal concentration. ZnO thin films doped with Ni, Co, and Gd were grown by metalorganic chemical vapor deposition (MOCVD). While the Co-doped thin films showed antiferromagnetic behavior, magnetic hysteresis was observed in the Ni-doped and Gd-doped thin films. Structural quality was verified with X-ray diffraction (XRD), and optical properties were investigated using room temperature photoluminescence (PL) and optical transmission measurements. Properties of ZnO:TM bulk crystals and thin films are compared and used to discuss possible origins of ferromagnetism in these materials.

Study of preparation and characteristics of transition metal-doped ZnO: Li thin films deposited by magnetron co-sputtering*

2019 ◽  
Vol 546 (1) ◽  
pp. 120-128 ◽  
Author(s):  
Yan Liu ◽  
Nan Ding ◽  
Guang-Rui Gu ◽  
Bao-Jia Wu
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Doped Zno ◽  
Metal Doped

scholarly journals Investigation of the room temperature ferro-magnetism in transition metal-doped ZnO thin films

2020 ◽  
Vol 126 (12) ◽  
Author(s):  
Arun Kumar ◽  
Pooja Dhiman ◽  
Sarveena ◽  
Sanjeev Aggarwal ◽  
Mahavir Singh
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Room Temperature ◽  
Zno Thin Films ◽  
Doped Zno ◽  
Metal Doped

Tailoring of the Band Gap in Transition Metal-doped ZnO: First Principle Calculations

2015 ◽  
Vol 2 (10) ◽  
pp. 5246-5250 ◽  
Author(s):  
Muhammad Khalid ◽  
Saira Riaz ◽  
Shahzad Naseem
Keyword(s):  
Transition Metal ◽  
Band Gap ◽  
First Principle ◽  
First Principle Calculations ◽  
Doped Zno ◽  
Metal Doped

scholarly journals STUDYING THE TRANSPARENT AND ELECTRICAL PROPERTIES OF ZnO:Ti THIN FILM WHICH IS PREPARED BY DC MAGNETRON SPUTTERINGSPUTTERING

2009 ◽  
Vol 12 (12) ◽  
pp. 59-64
Author(s):  
Binh Van Ho ◽  
Hung Vu Tuan Le ◽  
Nhien Thi Ngoc Nguyen ◽  
Dat Thanh Huynh ◽  
Phuong Ai Duong ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electrical Resistivity ◽  
Electrical Properties ◽  
Zno Films ◽  
Dc Magnetron Sputtering ◽  
Glass Substrates ◽  
Conductive Oxide ◽  
Doped Zno ◽  
Ceramic Targets

The Ti-doped Zno films were deposited onto glass substrates from ceramic targets ZnO with various Ti concentrations using a DC magnetron sputtering. The experimental results show that all thin films are transparent and conductive oxide films, with the appropriate Ti concentration (⁓1.5% Ti), the conductance of films can be improved. Optical characteristics of thin films was determined by UV-V is spectroscopy. The thickness of thin films was measured by Stylus method. The electrical resistivity was measured by four-point probe, and the roughness of films was determined by AFM.

Fabrication, Raman spectra and ferromagnetic properties of the transition metal doped ZnO nanocrystals

2007 ◽  
Vol 40 (21) ◽  
pp. 6518-6521 ◽  
Author(s):  
Z X Cheng ◽  
X L Wang ◽  
S X Dou ◽  
K Ozawa ◽  
H Kimura ◽  
...  
Keyword(s):  
Transition Metal ◽  
Raman Spectra ◽  
Ferromagnetic Properties ◽  
Zno Nanocrystals ◽  
Doped Zno ◽  
Metal Doped

scholarly journals Transition metal doped pyrite (FeS2) thin films: structural properties and evaluation of optical band gap energies

2015 ◽  
Vol 3 (46) ◽  
pp. 12068-12076 ◽  
Author(s):  
Sadia Khalid ◽  
Mohammad Azad Malik ◽  
David J. Lewis ◽  
Punarja Kevin ◽  
Ejaz Ahmed ◽  
...  
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Band Gap ◽  
Structural Properties ◽  
Optical Band Gap ◽  
Iron Pyrite ◽  
Metal Doped

The properties of transition metal doped iron pyrite thin films deposited by AACVD have been studied.

Structural and compositional analysis of transition-metal-doped ZnO and GaN PLD thin films

2005 ◽  
Vol 248 (1-4) ◽  
pp. 406-410 ◽  
Author(s):  
L.S. Dorneles ◽  
D. O’Mahony ◽  
C.B. Fitzgerald ◽  
F. McGee ◽  
M. Venkatesan ◽  
...  
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Compositional Analysis ◽  
Doped Zno ◽  
Metal Doped

Characterization of dilute magnetic semiconducting transition metal doped ZnO thin films by sol–gel spin coating method

2014 ◽  
Vol 313 ◽  
pp. 870-876 ◽  
Author(s):  
G. Vijayaprasath ◽  
R. Murugan ◽  
G. Ravi ◽  
T. Mahalingam ◽  
Y. Hayakawa
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno ◽  
Metal Doped
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