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Aiko achieves 34.76% efficiency for 2-terminal perovskite-silicon tandem solar cell

Essential brief

Key facts

Aiko's 2-terminal perovskite-silicon tandem solar cell achieved a record 34.76% efficiency in lab conditions.

The cell is based on heterojunction technology developed through collaboration between Aiko's European and Chinese R&D teams.

Two-terminal tandem design offers manufacturing simplicity and cost advantages over three-terminal configurations.

This advancement marks a significant step toward commercializing high-efficiency tandem solar cells.

Cross-continental collaboration is playing a key role in accelerating photovoltaic innovation.

Highlights

Aiko's 2-terminal perovskite-silicon tandem solar cell achieved a record 34.76% efficiency in lab conditions.

The cell is based on heterojunction technology developed through collaboration between Aiko's European and Chinese R&D teams.

Two-terminal tandem design offers manufacturing simplicity and cost advantages over three-terminal configurations.

This advancement marks a significant step toward commercializing high-efficiency tandem solar cells.

Aiko, a Chinese manufacturer specializing in back-contact solar modules, has announced a significant advancement in perovskite-silicon tandem solar cell technology.

Their latest lab-scale cell, based on a two-terminal (2T) configuration, has reached a record efficiency of 34.76%.

This breakthrough was achieved through a collaborative effort involving Solarlab Aiko Europe, Aiko's headquarters, and its R&D center in Yuwi, China.

The tandem cell utilizes heterojunction technology, which combines the high efficiency of silicon solar cells with the superior light absorption properties of perovskite materials.

The 2T design integrates both materials in a single stack, allowing for simplified manufacturing and potentially lower production costs compared to three-terminal (3T) configurations.

Solarlab Aiko Europe, the German research unit, has been instrumental in refining the tandem cell architecture and optimizing the interfaces between layers to minimize energy losses.

This efficiency milestone positions Aiko as a competitive player in the rapidly evolving tandem solar cell market, which aims to surpass the performance limits of conventional silicon-only solar panels.

The development also highlights the growing collaboration between European and Chinese research teams in advancing photovoltaic technologies.

Achieving such high efficiency in a lab-scale cell is a critical step toward commercial viability, although challenges remain in scaling the technology for mass production while maintaining performance and stability.

The success of this project underscores the potential of perovskite-silicon tandem cells to drive the next generation of high-efficiency, cost-effective solar energy solutions.