JinkoSolar says its perovskite tandem solar cell efficiency has reached 33.84%
This was independently tested by the Shanghai Institute of Microsystem and Information Technology
The tandem configuration uses the company’s own n-type high-efficiency monocrystalline TOPCon solar cell as the bottom cell
Vertically integrated Chinese solar PV manufacturer JinkoSolar has announced achieving 33.84% power conversion efficiency for its n-type TOPCon-based perovskite tandem solar cell. Calling it a new record, the company claims it breaks the conversion efficiency limit of single-junction crystalline silicon cells.
The company counts it as the 27th time it has set a world record for efficiency and power output for PV products. The 33.84% efficiency beats the company’s previous efficiency ‘record’ of 33.24% for the same tandem cell announced in May 2024 (see China Solar PV News Snippets).
JinkoSolar says its new efficiency claim was independently tested by the Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences.
The tandem configuration uses the company’s self-developed n-type high-efficiency monocrystalline TOPCon solar cell as the bottom cell that has undergone various advancements. The manufacturer lists some of these as full-area passivated contact technology, perovskite interfacial defect passivation technology, and bulk defect passivation technology.
“This achievement highlights the compatibility of TOPCon as a mainstream solar cell technology with the next-generation perovskite/silicon tandem cell technology, paving the way for new possibilities in the future development of the photovoltaic industry,” added the company.
At the TaiyangNews flagship event, the 4-day High Efficiency Solar Technologies 2024 Conference in December last year, JinkoSolar’s Product Manager Leo Cong shared that TOPCon remains the company’s current focus at least till 2027.
From 2028 onward, JinkoSolar expects the industry to enter mass production of tandem cells with an efficiency of around 33% for which it wants to be ready (see TOPCon To Stay On Top For JinkoSolar, For Now).
Earlier, in August 2024, Saudi Arabia’s KAUST reported 33.7% efficiency for a perovskite silicon tandem cell (see 33.7% Power Conversion Efficiency For Perovskite Silicon Tandem Cells).
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