TOPCon cells and heterojunction cells (HJT/HIT) are traditional crystalline silicon cells and constitute the second generation of photovoltaic cell technology, while perovskite cells represent the third generation of thin-film cells without silicon. .
Perovskite/crystalline silicon tandem cells are a combination of these two technical avenues. They are double junction solar cells formed by superposition of perovskite solar cells and traditional crystalline silicon solar cells, in simple terms. refers to the connection of perovskite cells in series to the surface of crystalline silicon cells.
At present, pure perovskite cells have not yet completely overcome the problem of excessive efficiency degradation, and stacked cells based on perovskite and crystalline silicon are expected to become Lthe best industrialized technology.
From the performance point of view, perovskite/crystalline silicon stacked cells expand the absorption spectrum due to the combination advantages and achieve higher photoelectric conversion efficiency than pure crystalline silicon cells or perovskite cells. Theoretically, the conversion efficiency can exceed 30%.
In terms of theoretical limit conversion efficiency, the limit efficiencies of HJT, TOPCon and perovskite monolayer cells are 27.5%, 28.7% and 31%, respectively.
It should be noted that stacked perovskite/crystalline silicon cells are expected to create more opportunities for heterojunction cells represented by HJT. This is because heterojunction battery technology and perovskite battery technology are low temperature processes. The production equipment of the two technologies is relativelyt compatible. Additionally, heterojunction batteries generate electricity from both sides and use thin-film processes.
Perovskite technology is therefore easier to stack on the basis of heterojunction cells. TOPcon battery technology is a high temperature process and does not have a transparent conductive film itself. It is naturally more difficult to superimpose perovskite technology than heterojunction technology.
Can Zhenghao outdoor mobile power supply use other brands of solar panels?
Guorui Sunshine, Zhenghao EcoFlow.
1. Guorui Sunshine focuses on the R&D and production of high-quality solar panels. Its product range covers flexible solar panels, solar panel backpacks, foldable solar panels, etc.
2. Zhenghao EcoFlow launched a solar panel capable of generating electricity from bothsides. It not only has an industry-leading true conversion efficiency of 22.8%, but the innovative double-sided power generation design also provides convenience for the industry.
Yes. Zhenghao 220W solar panel adopts double-sided power generation technology, which means that both sides can generate electricity and can be used with other brands of solar panels. EcoFlow Zhenghao was founded in 2017 by Wang Lei, a doctoral student at the University of Hong Kong. It is a technology company focused on the development and sale of mobile energy storage products.