Wide-Bandgap Subcells for All-Perovskite Tandem Solar Cells: Recent Advances, Challenges, and Future Perspectives

Energies, Journal Year: 2025, Volume and Issue: 18(10), P. 2415 - 2415

Published: May 8, 2025

All-perovskite tandem solar cells (APTSCs) offer a promising pathway to surpassing the efficiency limits of single-junction photovoltaics. The wide-bandgap (WBG) subcell, serving as top absorber, plays critical role in optimizing light harvesting and charge extraction architectures. This review comprehensively summarizes recent advancements WBG subcells, focusing on material design, defect passivation strategies, interfacial engineering address challenges such phase instability, halide segregation, voltage losses. Key innovations, including compositional tuning, additive engineering, transport layer optimization, are critically analyzed for their contributions stability enhancement. Despite significant progress, remain regarding scalability, long-term under illumination, cost-effective fabrication. Future research directions include development lead-reduced perovskites, machine learning-guided discovery, scalable deposition techniques. provides insights into advancing subcells toward high-efficiency, stable, eco-friendly APTSCs next-generation energy applications.

Language: Английский

Recent Progress on High-Efficiency Perovskite/Organic Tandem Solar Cells

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(10), P. 745 - 745

Published: May 15, 2025

Perovskite/organic tandem solar cells, as a next-generation high-efficiency photovoltaic technology, integrate the tunable bandgap characteristics of perovskite materials with broad spectral absorption advantages organic semiconductors, demonstrating remarkable potential to surpass theoretical efficiency limits single-junction enhance device stability, and expand application scenarios. This architecture supports low-temperature solution processing offers bandgaps, lightweight flexibility, ecofriendly advantages. review systematically summarizes research progress in this field, primary focus on analyzing working principles, performance optimization strategies, key challenges technology. Firstly, article discusses strategies such defect passivation, crystallization control, suppression phase separation wide-bandgap sub-cells, offering insights into mitigating open-circuit voltage losses. Secondly, for narrow-bandgap paper highlights both active layer interfacial layers, aiming improve utilization power conversion efficiency. Additionally, emphasizes optical transparency, electrical conductivity, energy level alignment recombination layer, providing guidance efficient current matching carrier transport.

Language: Английский