Person

Chihaya Adachi

1. Kyushu University's 'third-generation' OLED technology reaches 100% efficiency without rare metal iridium

   The Asahi Shimbun reported that organic light-emitting materials used in phone and TV screens still rely mainly on technology 25 to 40 years old: first-generation fluorescence from the late 1980s tops out at 25% efficiency, while second-generation phosphorescence from around 2000 reaches 100% but needs scarce, expensive iridium. The 'third-generation' technology published in 2012 by Kyushu University distinguished professor Chihaya Adachi reaches 100% efficiency without iridium by designing the structure of organic molecules. Adachi was named a Clarivate Citation Laureate in September.

   Oct 25, 2026 Morning