Journal ArticleDOI
Formation of one-dimensional ZnO nanowires from screw-dislocation-driven two-dimensional hexagonal stacking on diamond substrate using nanoparticle-assisted pulsed laser deposition
E. Senthil Kumar,E. Senthil Kumar,Maneesh Chandran,F. Bellarmine,Ramanjaneyulu Mannam,Daisuke Nakamura,Mitsuhiro Higashihata,Tatsuo Okada,M. S. Ramachandra Rao +8 more
TLDR
In this article, the growth of 1D ZnO nanowires on a p-type diamond substrate using nanoparticle-assisted pulsed laser deposition technique was reported, and the growth velocities at different regions of the hexagons were analyzed.Abstract:
We report on the growth of ZnO nanowires on a p-type diamond substrate using nanoparticle-assisted pulsed laser deposition technique. Microstructural analysis on different growth stages reveals that the self-assembled 1D ZnO nanowires emerge on well-formed 2D hexagonal base with spiral-like structures. We explain the formation of screw-dislocation-driven spiral-like-hexagons invoking crystal growth velocities at different regions of the hexagons. High-resolution transmission electron microscopy and selective area electron diffraction studies show that the nanowires are single crystalline in nature and grow along 〈0 0 0 1〉 direction of the wurtzite hexagonal structure. Room temperature photoluminescence spectrum of the ZnO nanowire shows a strong near band edge emission at 3.2 eV with a linewidth of 136 meV.read more
Citations
More filters
Journal ArticleDOI
Growth of Eshelby twisted ZnO nanowires through nanoflakes & nanoflowers: A room temperature ammonia sensor
TL;DR: A screw dislocated Eshelby twist origin in cationic assimilated ZnO nanowires synthesized via Successive Ionic Layer Absorption and Reaction (SILAR) technique was proposed in this article.
Journal ArticleDOI
Recent progress in high-performance photo-detectors enabled by the pulsed laser deposition technology
TL;DR: In this article, a review of the recent advances on the materials, fabrication, and application of pulsed-laser deposition for a variety of high-performance photo-detectors from an overall perspective is presented.
Journal ArticleDOI
Transformation from Film to Nanorod via a Sacrifical Layer: Pulsed Laser Deposition of ZnO for Enhancing Photodetector Performance.
TL;DR: Results indicate PLD combined with a sacrifical nanostructure is a promising method for obtaining high-quality ZnO nanorod microstructure, which paves the way for the fabrication of high performance ZnNO-based devices.
Journal ArticleDOI
Enhanced photoluminescence and heterojunction characteristics of pulsed laser deposited ZnO nanostructures
Ramanjaneyulu Mannam,Ramanjaneyulu Mannam,E. Senthil Kumar,D.M. Priyadarshini,F. Bellarmine,Nandita DasGupta,M. S. Ramachandra Rao +6 more
TL;DR: In this article, the growth of ZnO nanostructures in different gas ambient (Ar and N 2 ) using pulsed laser deposition technique was reported, and the nanorods are c-axis oriented and highly epitaxial in nature.
Journal ArticleDOI
Screw dislocation-driven t-Ba2V2O7 helical meso/nanosquares: microwave irradiation assisted-SDBS fabrication and their unique magnetic properties
Yan Sun,Yan Sun,Jianli Wang,Mingzhe Chen,Chun-Sheng Li,Chun-Sheng Li,Zhenpeng Hu,Shulei Chou +7 more
TL;DR: Triclinic (t-) Ba2V2O7 helical-like meso/nanosquares assembled from self-spiraling nanosheets have been controllably synthesized by a high-efficiency microwave irradiation-assisted surfactant process.
References
More filters
Journal ArticleDOI
Substrate dependent growth modes of ZnO nanorods grown by metalorganic chemical vapor deposition
TL;DR: In this article, the underlying growth modes of ZnO nanorods by metalorganic chemical vapor deposition with respect to the type of substrates were revealed by transmission electron microscopy studies.
Journal ArticleDOI
Synthesis of novel ZnO hexagonal nanocones by direct thermal evaporation method.
TL;DR: Novel ZnO hexagonal nanocones have been synthesized on Si(100) substrate by directly evaporating zinc acetate dihydrate, at a low temperature of 400 degrees C, without using any carrier gas and catalyst.