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镉是剧毒重金属，但凭借其量子点（如硒化镉、碲化镉）卓越的光学特性，在量子点发光二极管（QLED）显示领域“横行”。2025年3月5日，上海大学杨绪勇、张建华团队与吉林大学张佳旗团队、TCL集团工业研究院等单位联合在《Nature》发表研究论文称，用锌替代镉，开发出了环保型纯蓝光QLED。该技术突破性地实现了24.7%的外量子效率、17 nm窄光谱发射及3万h寿命（100 cd/m²亮度下），性能首次超越传统含镉蓝光QLED，为量子点显示的绿色转型奠定基础。

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（图片来源：上海大学官网）

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