Abstract
Perovskite solar cells (PSCs) have emerged as a practical candidate for new-generation photovoltaic devices to meet global energy demands. Recently, researchers' attempts have been focused on the crucial issues related to PSCs, i.e., stability and performance. In this research, MAPbI3-based PSCs were prepared via a two-step deposition process. To boost the power conversion efficiency (PCE) of the prepared PSCs, an additive engineering approach was employed. A novel 3-methylthiophene (MTP) organic molecule was added to the methylammonium iodide (MAI)/isopropanol (IPA) solution precursor. The additive improved the crystallinity of the perovskite layer, which indicates a more desirable film with lower surface defects and larger particle size. Modified PSCs reduced carries recombination rate at the interfacial of perovskite/hole transport layer (HTL), and the charge transport process is facilitated due to a desirable delocalized π-electron system of the MTP additive. The PCE of PSCs in the presence of MTP additive improved from 12.32% to 16.93% for pristine devices. Importantly, MTP-based PSCs showed higher ambient air stability due to the hydrophobic structure of MTP compared to pristine PSCs.
Highlights
In recent years, global warming concerns, and global climate changes,[1] have attracted the attention of many governments worldwide
For mesoporous Perovskite solar cells (PSCs), MAPbI3 perovskite lms were fabricated via a two-step deposition process
The mesoporous PSC devices designed in this study were structured as FTO/Compact TiO2 (c-TiO2)/mesoporous TiO2 (mp-TiO2)/MAPbI3/SpiroOMeTAD/Au
Summary
Global warming concerns, and global climate changes,[1] have attracted the attention of many governments worldwide. The encapsulated device maintained 97% of its initial PCE This method increases the cost of the fabrication process of PSCs. In addition, the encapsulation process has its challenges.[20,21,22] Besides, improving the crystallinity properties of perovskite layers can address the stability of PSCs.[10] Saidaminov et al.[23] expressed that the origin of the lattice strain is due to the ionic size mismatch between the A cation and lead halide in the perovskite structure. The modi ed PSCs with the MTP additive showed more stable behavior in humid conditions, indicating the improved hydrophobic behavior of the MTP -based perovskite layer
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
