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Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
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Efficient lateral-structure perovskite single crystal solar cells with high operational stability
Yilong Song1, Weihui Bi1, Anran Wang1
1State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, China.
Nature Communications
|January 16, 2020
Summary
Stable and efficient perovskite solar cells (PSCs) were developed using single crystals, overcoming stability issues in polycrystalline thin films. These devices demonstrate high efficiency and excellent operational stability, paving the way for low-cost perovskite photovoltaics.
Area of Science:
- Materials Science
- Renewable Energy
- Solid-State Physics
Background:
- Perovskite solar cells (PSCs) show great potential for efficient power conversion.
- Polycrystalline PSCs suffer from stability issues due to thermal instability and ion migration.
- Grain boundaries in polycrystalline PSCs hinder performance and longevity.
Purpose of the Study:
- To develop stable and efficient lateral-structure perovskite solar cells (PSCs) using single crystals.
- To enhance the performance of PSCs by optimizing anode contact.
- To investigate scalable architectures for cost-effective perovskite photovoltaic devices.
Main Methods:
- Fabrication of lateral-structure PSCs utilizing perovskite single crystals.
- Optimization of anode contact through simple surface treatment.
- Performance evaluation under varying light intensities (0.05 to 1 Sun).
- Assessment of operational stability under continuous illumination.
Main Results:
- Achieved power conversion efficiency exceeding 11% under 1 Sun illumination.
- Significantly improved open circuit voltage and fill factor compared to previous lateral-structure single crystal PSCs.
- Demonstrated excellent operational stability with no degradation after 200 hours of continuous operation.
- Investigated scalable architectures using interdigital electrodes.
Conclusions:
- Perovskite single crystals offer a pathway to overcome stability limitations in PSCs.
- Anode contact optimization is crucial for enhancing PSC efficiency and stability.
- Lateral-structure PSCs with scalable architectures hold promise for low-cost, high-efficiency perovskite photovoltaics.
