水母蛋白質激發 LED 設計

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根據12月1日出版的《先進材料》雜誌上發表的一份報告,電氣工程師們已經求助於不起眼的水母,以幫助他們開發更好的發光二極體(LED)。太平洋水母維多利亞多管水母似乎產生了研究人員試圖從砷化鎵或磷化銦等晶體半導體中獲得的各種光。此外,水母以極高的效率實現了這一點:它的光來自一種被稱為綠色熒光蛋白(GFP)的物質,該物質收集特定細胞化學反應中產生的能量,並將其作為來自稱為生色團的分子包中的綠光發射出來。

受維多利亞多管水母綠色光芒的啟發,南加州大學的馬克·湯普森和他的同事合成了類似生色團的分子,然後將其播種到有機發光二極體(OLED)中的有機分子基質上。他們推斷,類似生色團的分子將充當“摻雜劑”,將從基質捕獲的能量轉化為光。在稍微調整了分子結構後,該團隊生產出了綠色和橙色的 OLED。

研究人員熱衷於開發這種OLED,因為它們比非有機的OLED更簡單且更便宜。雖然不如現有裝置那樣高效,但進一步的工作應該可以改進基於生色團的模型。“存在著大量的熒光生物,”該團隊寫道。“可以使用天然存在的系統提供的見解來製備其他材料,這些材料可能在電子和光電子應用中很有用。”

Kate Wong is an award-winning science writer and senior editor at 大眾科學 focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for more than 25 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home, to the shores of Kenya's Lake Turkana in search of the oldest stone tools in the world, to Madagascar on an expedition to unearth ancient mammals and dinosaurs, to the icy waters of Antarctica, where humpback whales feast on krill, and on a "Big Day" race around the state of Connecticut to find as many bird species as possible in 24 hours. Kate is co-author, with Donald Johanson, of Lucy's Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow Wong on X (formerly Twitter) @katewong

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