Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/3887
Title: Zinc Oxide and Metal Halide Perovskite Nanostructures Having Tunable Morphologies Grown by Nanosecond Laser Ablation for Light-Emitting Devices
Authors: Abdullayeva, Nazrin
Altaf, Çiğdem Tuç
Kumtepe, Alihan
Yılmaz, Nazmi
Coşkun, Özlem
Sankır, Mehmet
Kurt, Hamza
Çelebi, Cem
Yanılmaz, Alper
Demirci Sankır, Nurdan
Keywords: ZnO photoluminescence
multimorphological ZnO
nanosecond fiber laser ablation
laser-assisted patterning
COMSOL heat distribution
Issue Date: Mar-2020
Publisher: American Chemical Society
Source: Abdullayeva, N., Tuc Altaf, C., Kumtepe, A., yilmaz, N., Coskun, O., SANKIR, M., ... and Demirci Sankir, N. (2020). Zinc Oxide and Metal Halide Perovskite Nanostructures Having Tunable Morphologies Grown by Nanosecond Laser Ablation for Light-Emitting Devices. ACS Applied Nano Materials.
Abstract: This work reports a one-pot chemical bath deposition (CBD) method for the preparation of selectively grown, morphology-tunable zinc oxide (ZnO) nanostructures provided via straightforward nanosecond fiber laser ablation. Nanosecond fiber laser ablation is different from lithographic methods due to its simple, time saving, and efficient film scribing abilities. Here, multiple morphologies of the ZnO nanostructures on the same substrate have been grown via laser ablation of the ZnO seeding layer. Selective and controlled ablation of the titanium layer, ZnO growth inhibitor, resulted in systematic growth of nanorod arrays, while the application of extensive fluence energies resulted in the penetration of the laser beam until the glass substrate induced the nanoflake growth within the same CBD environment. The laser penetration depth has been numerically investigated via COMSOL Multiphysics heat module simulations, and the optical variations between two nanostructures (nanorod and nanoflake) have been examined via Lumerical FDTD. The simultaneous growth of two morphologies served as an efficient tool for the enhancement of photoluminescence intensities. It increased the average charge carrier lifetimes of the thin films from approximately 2.01 to 9.07 ns under the same excitation wavelengths. The amplification in PL performances has been accomplished via the capstone of all-inorganic halide perovskite (IHP) deposition that brought a successful conclusion to lifetime responses, which have been increased by 1.4-fold. The development of IHP sensitized nanoscaled multimorphological ZnO thin films can, therefore, be used as potential nanomaterials for light-emitting-device applications.
URI: https://hdl.handle.net/20.500.11851/3887
https://pubs.acs.org/doi/10.1021/acsanm.0c01034
ISSN: 2574-0970
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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