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2024 WMC Held in Hefei

HEFEI, CHINA - SEPTEMBER 20, 2024 - Perovskite batteries on display at the 2024 World Manufacturing Convention(WMC) in Hefei, Anhui province, China, September 20, 2024.

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METI chief inspects next-generation solar cell development lab

Photo taken on June 17, 2023, shows a Japan-invented next-generation perovskite solar cell under development at a Sekisui Chemical Co. research lab in Shimamoto in Osaka Prefecture. Japanese Economy, Trade and Industry Minister Yasutoshi Nishimura visited the lab the same day.

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METI chief inspects next-generation solar cell development lab

Japanese Economy, Trade and Industry Minister Yasutoshi Nishimura meets the press after visiting a Sekisui Chemical Co. research lab in Shimamoto in Osaka Prefecture, on June 17, 2023, to check the progress in the development of the Japan-invented next-generation perovskite solar cell.

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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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Highly efficient perovskite solar cell

A solar cell on which the crystalline material perovskite is applied is shown at Toin University of Yokohama on March 18, 2015. The cell with perovskite layer is relatively simple to produce and has been quickly achieving improved conversion efficiency. A team led by Tsutomu Miyasaka, a professor at the university, reported in 2006 that perovskites can be used for photovoltaics. (Kyodo) ==Kyodo

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Japan researcher shows highly efficient perovskite solar cell

Tsutomu Miyasaka, a professor at Toin University of Yokohama, shows a perovskite solar cell, which is relatively simple to produce and has been quickly achieving improved conversion efficiency, at the university in Yokohama on March 18, 2015. (Kyodo) ==Kyodo