Jump to main content
Jump to site search


A Computational Approach to Interface Engineering of Lead-Free CH3NH3SnI3 Highly-Efficient Perovskite Solar Cells

Abstract

Perovskite solar cells (PSCs) based on organic-inorganic metal halide perovskite are a recent ground-breaking advancement in attaining power conversion efficiencies exceeding 21%. However, the toxicity of lead in these PSCs could be a deterrent for large-scale development due to the environmental concerns. The methylammonium tin triiodide (CH3NH3SnI3) perovskite has been successfully employed in lead-free PSCs as an alternative to CH3NH3PbI3 perovskite. The PSCs have mostly been realized with highly expensive sprio-OMeTAD hole-transporting material (HTM). Herein, copper thiocyanate (CuSCN) was implemented as a HTM instead of its highly expensive sprio-OMeTAD counterpart. The results show that the CuSCN is a promising HTM for the lead-free CH3NH3SnI3-based PSCs. We investigated and optimized the parameters of the lead-free CH3NH3SnI3-based PSCs with CuSCN HTM. The simulated device shows a power conversion efficiency exceeding 26% under AM 1.5G illumination and an absorption onset up to 1080 nm. The reported CH3NH3SnI3-based PSCs provide a viable path to realization of environmentally benign, low-cost, and high-efficiency PSCs.

Back to tab navigation

Publication details

The article was received on 10 Jun 2018, accepted on 09 Sep 2018 and first published on 10 Sep 2018


Article type: Paper
DOI: 10.1039/C8CP03660H
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
  •   Request permissions

    A Computational Approach to Interface Engineering of Lead-Free CH3NH3SnI3 Highly-Efficient Perovskite Solar Cells

    M. Lazemi, S. Asgharizadeh and S. Bellucci, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP03660H

Search articles by author

Spotlight

Advertisements