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 |
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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