Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/11867
Title: | Understanding the Impact of Sri2 Additive on the Properties of Sn-Based Halide Perovskites |
Authors: | Yüce, Hürriyet Perini, Carlo A. R. Hidalgo, Juanita Castro-Mendez, Andres-Felipe Evans, Caria Demir, Mustafa Muammer |
Keywords: | Halide perovskites Lead free Structure-property |
Publisher: | Elsevier |
Abstract: | Organic-inorganic halide perovskites have been identified as favorable candidates for the next generation of photovoltaics. Adding alkali metal halides to perovskite films has been shown to be a viable option to improve the perovskite film quality and to modulate their fundamental properties. In this work, we perform optical and electron-beam based characterizations of mixed Sn/Pb based perovskite films to investigate the effect of the addition of the alkaline metal halide SrI2. By analyzing structural (X-ray diffraction), morphological (Scanning Electron Microscopy), optical (photoluminescence), and chemical properties (X-ray photoelectron spectroscopy), we show a complex interplay of effects upon addition of Sr2+ into the perovskite solution. Low concentrations of Sr2+ increases lattice strain, which hints at incorporation of the additive into the perovskite lattice and improves the film optoelectronic properties. As the additive concentration increases beyond 0.5 mol %, microstrain decreases. At concentrations >0.5 mol %, Sr2+ induces significant reduction of the average domain size, which impacts both structural and optical properties of the perovskite film. |
URI: | https://doi.org/10.1016/j.optmat.2021.111806 https://hdl.handle.net/11147/11867 |
Appears in Collections: | Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1-s2.0-S0925346721010065-main.pdf | Artikle (Makale) | 4.98 MB | Adobe PDF | View/Open |
CORE Recommender
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.