Studying VOC in lead free inorganic perovskite photovoltaics by tuning energy bandgap and defect density

In hybrid perovskite photovoltaics (hPPV) highest reported efficiency is ∼25.2%. However, stability and toxicity are major concern towards commercialization. To improve stability, various approaches were made by research communities. Utilizing inorganic perovskite photoactive materials is one such a...

Full description

Saved in:
Bibliographic Details
Published in:Ceramics international 2022-10, Vol.48 (19), p.29414-29420
Main Authors: Elango, Indumathi, Selvamani, Muthamizh, Ramamurthy, Praveen C., Kesavan, Arul Varman
Format: Article
Language:English
Subjects:
Bandgap tuning
Defect density
Ecofriendly
Perovskites
SCAPS-1D simulation
Semiconductors
Thin film
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In hybrid perovskite photovoltaics (hPPV) highest reported efficiency is ∼25.2%. However, stability and toxicity are major concern towards commercialization. To improve stability, various approaches were made by research communities. Utilizing inorganic perovskite photoactive materials is one such approach to improve stability. Toxic element ‘Pb’ can be substituted with suitable non-toxic elements such as ‘Sn’ without sacrificing efficiency and stability. In CsPbI3, replacing Sn in place of Pb results in the PCE of ∼13%. However, efficiency of this PV is lagging 12% as compared with hybrid perovskite PV. This difference should be overcome to compete with hPPV. To improve the efficiency of inorganic PPV various experimental strategies were adopted. In this study, SCAPS simulation was carried out on FTO/TiO2/CsSnI3/spiro-OMeTAD/Au by altering Eg, energetic position of conduction and valence band, defect density, and thickness of semiconductor. Obtained results were analyzed and reported in this work.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2022.06.125