Observation on structural and optical features of new nanostructured lead-free methylammonium zinc or cobalt iodide perovskites for solar cells applications
Zeenelabden, Hager H.; Elseman, Ahmed Mourtada; El-Aasser, Mostafa A.; Gad, Nasr; Rashad, Mohamed M.;
Abstract
The toxicity of lead-based halide perovskites has become a significant drawback to be employed in optoelectronic devices. Therefore, developing other environmentally friendly candidates with tunable optoelectronic properties for highly efficient solar cells is indispensable. Lead-free perovskite solar cells (PSCs) are promising to have a crucial role in large-scale commercial non-toxic photovoltaic devices. Here, the microstructure and optoelectronic properties of 2D halide perovskites without pb (CH3NH3)2BI4 (where B = Zn or Co) have been investigated for use in solar cells. The synthesized samples are characterized by X-ray diffraction (XRD), Raman spectroscopy, FT-IR, FESEM, and TEM. The variation in the optical and photoluminescence (PL) is recognized. The results indicate that (CH3NH3)2ZnI4 and (CH3NH3)2CoI4 crystals demonstrate a wide band gap of about 2.42 and 1.87 eV, respectively. A comparative study is presented for the optical properties of Zn- versus Co-based perovskites. It is noticed that Co is a better candidate than Zn to be a good replacement choice for Pb as Co-containing compounds have lower optical bandgap than Zn-containing compounds. PCBM is employed as a hole transport material, and PEDOT:PSS as an electron transport layer. The p-i-n PSCs are fabricated, and the electrical parameters are measured, obtaining power conversion efficiencies (PCE) of 0.73 and 2.45% for (CH3NH3)2ZnI4 and (CH3NH3)2CoI4, respectively. This work opens the door for further investigations to increase the PCE of both devices.
Other data
Title | Observation on structural and optical features of new nanostructured lead-free methylammonium zinc or cobalt iodide perovskites for solar cells applications | Authors | Zeenelabden, Hager H.; Elseman, Ahmed Mourtada; El-Aasser, Mostafa A.; Gad, Nasr ; Rashad, Mohamed M. | Keywords | Cobalt;Halide perovskite;Lead-free;Nanocrystals;Zinc | Issue Date | 1-Dec-2023 | Journal | SN Applied Sciences | Volume | 5 | ISSN | 2523-3963 2523-3971 |
DOI | 10.1007/s42452-023-05562-x | Scopus ID | 2-s2.0-85176618925 |
Attached Files
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
s42452-023-05562-x.pdf | 3.07 MB | Adobe PDF | Request a copy |
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.