水母蛋白质激发 LED 设计

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根据12月1日出版的《先进材料》杂志上发表的一份报告,电气工程师们已经求助于不起眼的水母,以帮助他们开发更好的发光二极管(LED)。太平洋水母维多利亚多管水母似乎产生了研究人员试图从砷化镓或磷化铟等晶体半导体中获得的各种光。此外,水母以极高的效率实现了这一点:它的光来自一种被称为绿色荧光蛋白(GFP)的物质,该物质收集特定细胞化学反应中产生的能量,并将其作为来自称为生色团的分子包中的绿光发射出来。

受维多利亚多管水母绿色光芒的启发,南加州大学的马克·汤普森和他的同事合成了类似生色团的分子,然后将其播种到有机发光二极管(OLED)中的有机分子基质上。他们推断,类似生色团的分子将充当“掺杂剂”,将从基质捕获的能量转化为光。在稍微调整了分子结构后,该团队生产出了绿色和橙色的 OLED。

研究人员热衷于开发这种OLED,因为它们比非有机的OLED更简单且更便宜。虽然不如现有设备那样高效,但进一步的工作应该可以改进基于生色团的模型。“存在着大量的荧光生物,”该团队写道。“可以使用天然存在的系统提供的见解来制备其他材料,这些材料可能在电子和光电子应用中很有用。”

Kate Wong is an award-winning science writer and senior editor at 大众科学 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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