Perovskite solar cell device developed by Yamagata University

Perovskite solar cell device developed by Yamagata University

Professor Kenshi Sano and his team at Yamagata University have developed a perovskite solar cell with a structure called "reverse type" fabricated by a low-temperature formation process of 150 degrees C or lower. So far, the conversion efficiency of the low-temperature formation and inverse-type structure has been 17-19%, but using Yamagata University's organic EL manufacturing technology, they have confirmed a conversion efficiency of over 20%. Conventionally, solar cells have been fabricated using a high-temperature formation method called the "forward type," in which an electron transport layer (titania) is baked on top of a special transparent conductive film using a high-temperature process (approximately 500 degrees C). The research team at Yamagata University has been working on the inverse type device structure, which can reduce the process temperature. (Photo taken on May 23, 2019, location unknown, credit: Nikkan Kogyo Shimbun / Kyodo News Images)

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