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Updated: Jan 23, 2026
11:38
Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
19.0K
High-Performance Perovskite Solar Cells Enabled by the Guanidine Derivative
Jintao Wang1,2, Jiaqi Shang2, Buyue Zhang3
1School of Information Engineering, Yantai Institute of Technology, Yantai, Shandong Province 264005, China.
ACS Applied Materials & Interfaces
|January 22, 2026
Summary
Creatine enhances perovskite solar cell (PSC) performance by reducing defects and ion migration. This novel additive strategy improves efficiency to 25.51% and boosts long-term stability for commercial viability.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Perovskite solar cells (PSCs) face commercialization challenges due to intrinsic defects and instability, leading to ion migration and efficiency loss.
- Current additive strategies are limited by the poor solubility of promising compounds, hindering their application in PSCs.
Purpose of the Study:
- To introduce creatine, a guanidine derivative, as a novel additive to improve PSC performance by mitigating defects and ion migration.
- To investigate the solubility enhancement and interaction mechanisms of creatine within the perovskite precursor.
Main Methods:
- Theoretical calculations and experimental measurements to study the interaction between creatine and PbI2.
- Incorporation of creatine into the perovskite precursor solution.
- Fabrication and characterization of PSC devices.
- Stability testing under ambient conditions.
Main Results:
- Creatine exhibits strong interactions with PbI2, increasing its solubility in DMSO through chelation and hydrogen bonding.
- Creatine addition effectively passivates defects and hinders ion migration during device operation.
- PSCs with creatine achieved a champion power conversion efficiency of 25.51%.
- Enhanced device stability, retaining over 93.2% of initial efficiency after 1000 hours of ambient exposure.
Conclusions:
- Creatine is a promising additive for enhancing PSC performance and stability, overcoming solubility limitations.
- The synergistic effects of creatine in tailoring crystallization and obstructing ion migration offer a new pathway for developing highly efficient and durable PSCs.
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