Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/8158
Title: CsPbBr3 and Cs4PbBr6-CsPbBr3 composite perovskite sensitization of 3D-ZnO nanostructures for enhanced photoluminescence emission
Authors: Altaf, Çiğdem Tuç
Abdullayeva, Nazrin
Sankır, Mehmet
Sankır, Nurdan Demirci
Keywords: 3D-ZnO nanosheets
Semiconductor
Photoluminescence
Chemical bath deposition
CsPbBr3
Cs4PbBr6
Zno Nanostructures
Visible Emission
Red Emission
Films
Nanocrystals
Luminescence
Performance
Dependence
Issue Date: 2021
Publisher: Elsevier
Abstract: This study reports a seeding-layer free synthesis of nanostructured three-dimensional zinc oxide (3D-ZnO) thin films via a simple and cost-effective chemical bath deposition method (CBD) followed by their sensitization with inorganic perovskite halide semiconductors for luminescence-based applications. The emission abilities of pristine ZnO nanostructures have been enhanced with the incorporation of CsPbBr3 in the cubic crystal phase, which is proven to be a highly stable member of the inorganic halide perovskite family. Additionally, the transformation of CsPbBr3 nanocrystals into Cs4PbBr6-CsPbBr3 composite structure has been attained by altering the (i) CsBr content and (ii) crystallization temperature during the perovskite synthesis step, resulting in a remarkable luminescence increase for the overall structure by -17 folds. A detailed evaluation of defect contents and carrier lifetimes of pristine and perovskite deposited ZnO thin films have been conducted via time-resolved photoluminescence spectroscopy showing an improved electron transfer especially for Cs4PbBr6-CsPbBr3 deposited ZnO thin films.
URI: https://doi.org/10.1016/j.jlumin.2021.118396
https://hdl.handle.net/20.500.11851/8158
ISSN: 0022-2313
1872-7883
Appears in Collections: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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