Recently, OFweek Solar PV Network learned that a researcher at the Ulsan National Institute of Science and Technology in South Korea announced that the efficiency of the perovskite solar cell he prepared has broken the world record, reaching 25.6%.
However, the researchers did not disclose the specific manufacturing process of the perovskite solar cell, how it achieved such high conversion efficiency, or how it maintains high efficiency under harsh operating conditions.
As a third-generation solar cell, perovskite solar cells have always been a key focus of technological research for many research teams and companies. With their conversion efficiency and cost advantages already proven, the main technical challenges lie in achieving a simpler preparation process and maintaining high efficiency over a long period.
In this respect, Chinese research teams have consistently been at the forefront. Several university research teams have released their findings this year, increasing the efficient operating time to over 1000 hours; however, this still lags significantly behind crystalline silicon solar cells.
Regarding perovskite modules, JET Solar's products have repeatedly broken conversion efficiency records under the rigorous testing of JET (Japan Electrotechnical Commission), a globally authoritative testing organization, with the highest efficiency currently reaching 20.5%.
The South Korean research team focused more on improving battery efficiency. Prior to this world record, the previous record holder was also a South Korean team, the Korea Institute of Chemical Technology, whose perovskite battery efficiency was 25.2%.
