Related Experiment Video
Updated: May 1, 2026
11:38
Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
20.0K
Multifunctional Conjugated Ligands Synergistically Optimize the Interface and Regulate Crystallization for
Yonglong Yang1, Gang Xie1, Chuizheng Feng2
1College of Chemistry and Materials/Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|April 30, 2026
Summary
New conjugated ligands enhance perovskite solar cell stability and performance by optimizing interfaces and controlling crystallization. This leads to high power conversion efficiencies and improved device durability.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Optimizing interfaces and crystallization is key for high-performance inverted perovskite solar cells (PSCs).
- Self-assembled monolayers (SAMs) and perovskite crystallization require precise control for improved device efficiency and stability.
Purpose of the Study:
- To design and investigate multifunctional conjugated cationic ligands for modifying the SAMs/perovskite interface in PSCs.
- To enhance the performance and stability of inverted PSCs through interfacial engineering and controlled perovskite crystallization.
Main Methods:
- Synthesized two multifunctional conjugated cationic ligands, TDZI and TzTzI.
- Modified the SAMs/perovskite interface using these ligands and studied their effect on perovskite precursor solutions.
- Fabricated inverted PSCs incorporating the modified interfaces and characterized their photovoltaic performance and stability.
Main Results:
- Ligands promoted ordered π-π stacking, suppressed SAM aggregation, and induced 2D/3D heterojunction formation for uniform perovskite films.
- Synergistic effects improved SAM/perovskite adhesion, reduced recombination losses, and enhanced carrier extraction/transport.
- TzTzI-modified PSCs achieved a record PCE of 26.61% with high Voc (1.204 V) and demonstrated excellent stability.
Conclusions:
- Multifunctional conjugated cationic ligands effectively optimize the SAMs/perovskite interface and regulate perovskite crystallization.
- The developed ligands significantly boost PSC performance, stability, and scalability for various device architectures and sizes.
