Laminating Machine for Perovskite Module

Perovskite solar cells,belonging to the third generation of solar cells,are also known as new concept solar cells,which use perovskite organic metal halide semiconductors as light-absorbing materials.

Perovskite,a synthetic material,gained prominence in 2009 when it was first tried for photovoltaic power generation because of its superior performance,low cost and great commercial value.In recent years,the world’s top scientific research institutions and large multinational companies,such as the University of Oxford,the Swiss Federal Institute of Technology in Lausanne, Japan’s Panasonic,Sharp,Toshiba,etc.,have invested a lot of manpower and material resources,and strive to achieve mass production as soon as possible.

In February of 2017,Fiber Optics broke the world efficiency record for perobskite components for the first time,which was long held by Japan,with a conversion efficiency of 15.2%.In May and December of the same year,the company broke the world record three times a year with a conversion efficiency of 16% and 17.4%,respectively.This time,they increase the perovskite component conversion efficiency to 17.9% and the steady-state output efficiency to 17.3%.The result once again proves that Chinese scientist have the technological lead in the field of perovskite.

To make solar energy easier,more efficient and cheaper,science and industry are developing new types of solar cells.Perovskite solar cells, PSCs are rising stars with more concern.

The efficiency of crystalline silicon cells is approaching its limit and the potential of the next generation perovskite is abundant.After more than 40 years of development of crystalline silicon cells,the laboratory conversion efficiency is close to 27%, close to the limit;the perovskite cell has the characteristic of low photoelectric loss and adjustable band gap,and the superimposed lamination technology can achieve nearly the twice efficiency of crystalline cells,so the perovskite cell has sufficient potential.

The theoretical efficiency limit of crystalline silicon cell is 29.4%, and the maximum efficiency has been reached at present 26.8%.Crystalline silicon solar cells are limited by Auger recombination to a theoretical efficiency of 29.4%.Taking into account the actual optical and electrical losses,the upper limit of efficiency can be further reduced to 27%;in 2017,the HJT cell developed by Kaneka Company in Japan maintained the highest efficiency record of 26.7% for 5 years in the field of crystalline silicon cell.In December of 2022,the efficiency of longgi HJT reached 26.81%,forming the new world record.

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