Vacuum Processability of Self-Assembled Monolayers and Their Chemical Interaction with Perovskite Interfaces

Energies, Journal Year: 2025, Volume and Issue: 18(7), P. 1782 - 1782

Published: April 2, 2025

Self-assembled monolayers (SAMs) have gained significant attention as an interfacial engineering strategy for perovskite solar cells (PSCs) due to their efficient charge transport ability and work function tunability. While solution-based methods such dip-coating spin-coating are widely used SAM deposition, challenges non-uniform coverage, solvent contamination, limited control over molecular orientation hinder scalability reproducibility. In contrast, vacuum deposition techniques, including thermal evaporation, overcome these limitations by enabling the formation of highly uniform materials with precise thickness arrangement. Importantly, chemical interactions between layers, coordination bonding Pb2+ ions, play important role in passivating surface defects, modulating energy levels, promoting crystallization. These not only enhance wettability but also improve overall quality stability films. This review highlights advantages vacuum-deposited SAMs, strong layers improving properties critical scalable applications.

Language: Английский

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Novel Benzodithiophene‐Based Polymer with Intramolecular Non‐Covalent Interactions as a Hole Transporting Layer for Perovskite Solar Cells

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

Abstract Conjugated polymers represent promising hole‐transport materials (HTM) used for the fabrication of efficient and stable perovskite solar cells (PSCs). Herein, a novel wide‐bandgap polymer Lira24 is designed based on Si( i ‐Pr) 3 ‐substituted benzodithiophene bis(2‐ethylhexyloxy)benzene moieties. Alternation selected building blocks in backbone provides formation S∙∙∙O non‐covalent intramolecular interactions, which are beneficial planarization chains, better π‐conjugation consequently improved charge transport. The developed polymeric HTM show enhanced hole mobility 1.7×10 −3 cm 2 V −1 s respect to that widely PTAA, well‐aligned energy highest occupied molecular orbital (−5.39 eV) with valence band MAPbI absorber material. As result, PSCs delivered an encouraging power conversion efficiency 18.1% remarkably outperforming PTAA‐based control devices. results this work illustrate importance structure design photovoltaics.

Language: Английский

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Strategies for achieving carbon neutrality within the chemical industry

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 217, P. 115762 - 115762

Published: April 19, 2025

Language: Английский

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Direct Visualization of Interfacial Charge Transfer in CsPbBr₃ Perovskite Solar Cells Using Pattern-Illumination Time-Resolved Phase Microscopy

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

This study follows our previous investigation of charge carrier dynamics at the hole transport layer (HTL)/perovskite (CsPbBr3) interface, where pattern-illumination time-resolved phase microscopy (PI-PM) revealed that HTLs significantly influence extraction and recombination processes. In absence an HTL, CsPbBr3 exhibited dominant dynamics, which were mitigated by introduction Spiro-OMeTAD P3HT, with latter showing superior efficiency. this follow-up study, we extend analysis to electron layers (ETLs) full ETL/perovskite/HTL structure, investigate modulation separation interfaces. Our results show TiO2, a widely used ETL, enhances but still exhibits due interfacial states. Li Pt doping further improve separation, Pt-doped TiO2 demonstrating most significant reduction in longest lifetimes. When combined HTLs, choice HTL impacts extraction: P3HT facilitates more efficient removal than Spiro-OMeTAD. The effective configuration for suppression residual carriers was achieved as ETL HTL. These findings provide comprehensive understanding inorganic perovskite solar cells, importance both selection optimizing photovoltaic performance.

Language: Английский

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Performance improvement of perovskite/CIGS tandem solar cell using barium stannate charge transport layer and achieving PCE of 39 % numerically

Solar Energy, Journal Year: 2023, Volume and Issue: 267, P. 112218 - 112218

Published: Dec. 8, 2023

Language: Английский

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