Probing optical band gaps at the nanoscale in NiFe2O4 and CoFe2O4 epitaxial films by high resolution electron energy loss spectroscopy

K Dileep, B Loukya, N Pachauri, A Gupta… - Journal of Applied …, 2014 - pubs.aip.org
Nanoscale optical band gap variations in epitaxial thin films of two different spinel ferrites, ie,
NiFe 2 O 4 (NFO) and CoFe 2 O 4 (CFO), have been investigated by spatially resolved high …

Highly oriented (111) CoO and Co3O4 thin films grown by ion beam sputtering

P Prieto, JF Marco, A Serrano, M Manso… - Journal of Alloys and …, 2019 - Elsevier
We demonstrate that ion beam sputtering is a suitable deposition technique to obtain single-
phase and highly (111)-oriented CoO and Co 3 O 4 thin films. The control of substrate …

Probing optical band gaps at nanoscale from tetrahedral cation vacancy defects and variation of cation ordering in NiCo2O4 epitaxial thin films

K Dileep, B Loukya, P Silwal, A Gupta… - Journal of Physics D …, 2014 - iopscience.iop.org
High resolution electron energy loss spectroscopy (HREELS) is utilized to probe the optical
band gaps at the nanoscale in epitaxial NiCo 2 O 4 (NCO) thin films with different structural …

Spectroscopic evidence that Li doping creates shallow V Zn in ZnO

J Lv, Y Liu - Physical Chemistry Chemical Physics, 2017 - pubs.rsc.org
The simultaneous introduction of shallow acceptors and elimination of donor compensation
is the key issue toward achieving p-type ZnO. Herein, through accurate control of the Li …

Effect of nitrogen doping on electronic and optical properties of ZnO sheet: DFT+ U study

SS Parhizgar, J Beheshtian - Computational Condensed Matter, 2018 - Elsevier
Structural, optical and electronic properties of bulk and two-dimensional (2D) nanostructure
of pure and N-doped ZnO have been investigated using density functional theory and the …

Behavior and impact of sulfur incorporation in Zinc Oxysulfide alloy grown by metal organic chemical vapor deposition

J Ma, K Tang, H Mao, J Ye, S Zhu, Z Xu, Z Yao… - Applied surface …, 2018 - Elsevier
Highly mismatched ZnO 1-x S x: N alloy films with various x were deposited on c-plane
sapphire substrates by a near-equilibrium method, metal-organic chemical vapor deposition …

Effect of Bloch wave electron propagation and momentum-resolved signal detection on the quantitative and site-specific electron magnetic chiral dichroism of …

B Loukya, DS Negi, K Dileep, N Pachauri, A Gupta… - Physical Review B, 2015 - APS
Electron magnetic chiral dichroism (EMCD) in a transmission electron microscope is an
element-specific magnetic characterization technique and is extremely powerful for …

Stable p‐type conductivity in B and N co‐doped ZnO epitaxial thin film

R Sahu, HB Gholap, G Mounika, K Dileep… - … status solidi (b), 2016 - Wiley Online Library
We report on the observation of stable p‐type conductivity in B and N co‐doped epitaxial
ZnO thin films grown by pulsed laser deposition. Films grown at higher oxygen partial …

Influences of lithium on the defect structures and electrical properties of ZnO–Bi2O3 based varistors

S Li, J Lin, J He, W Liu - Journal of Materials Science: Materials in …, 2017 - Springer
The role of alkali metal elements in ZnO varistor is of interest because of the small ion radius
and valence state. They are expected to form acceptor state and convert the n-type ZnO …

Ferroelectric and Dielectric properties in Li-doped ZnO nanorods

V Bornand - Thin Solid Films, 2015 - Elsevier
In the present work, Li-doped ZnO nanorods have been deposited onto SiO 2 glass
substrates by the simple and economical Chemical Bath Deposition method. These layers …