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P-N junction

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Related Experiment Video

Updated: Mar 17, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance

Published on: February 27, 2017

Multi-Site Synergistic Regulation Towards Highly Efficient and Stable Perovskite Solar Cells.

Boxin Jiao^1,2, Minghao Li¹, Liguo Tan¹

¹State Key Laboratory of Power System Operation and Control, Department of Electrical Engineering, Tsinghua University, Beijing, China.

Angewandte Chemie (International Ed. in English)

|March 16, 2026

Summary

A novel triple-functional ligand, Di-p-toluenesulfonamide (D-pTSAD), enhances perovskite solar cell (PSC) performance and stability. This ligand improves crystal growth and defect passivation, leading to higher efficiency and durability.

Keywords:

Ion migration multi‐site coordination perovskite solar cells stability

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Area of Science:

Materials Science
Renewable Energy
Photovoltaics

Background:

Perovskite solar cells (PSCs) show high power conversion efficiency (PCE) and cost-effective manufacturing.
Commercialization is hindered by poor operational stability and moisture sensitivity, often due to inferior perovskite film quality.

Purpose of the Study:

To introduce Di-p-toluenesulfonamide (D-pTSAD) as a triple-functional ligand for PSCs.
To investigate the synergistic coordination mechanism of D-pTSAD with the perovskite lattice.
To enhance both the PCE and operational stability of perovskite solar cells.

Main Methods:

Synthesis and application of D-pTSAD as a ligand in PSC fabrication.
Characterization of perovskite film quality and crystal growth facilitated by D-pTSAD.
Performance testing including PCE measurement and long-term operational stability under continuous maximum power point tracking (MPPT).

Main Results:

D-pTSAD acts as a triple-functional ligand, promoting oriented crystal growth and defect mitigation.
Achieved a high PCE of 26.22% in the fabricated PSCs.
Demonstrated enhanced coordination with Pb²⁺ and I^- ions, leading to defect passivation, suppressed ion migration, and reduced nonradiative recombination.
PSCs maintained 82.5% of their initial PCE after 1,000 hours of continuous MPPT, indicating significant stability improvement.

Conclusions:

D-pTSAD significantly boosts PSC performance and operational stability through multisite synergistic coordination.
The ligand's ability to improve film quality and passivate defects is key to its effectiveness.
This work highlights the potential of advanced coordination chemistry in developing next-generation perovskite solar technologies.