Abstract Smart emissive materials that can react to external stimuli in a reversible way are challenging to develop and have been the subject of considerable interest. Here, we present a printable hybrid material that can withstand numerous writing-erasing cycles. This material is based on a poly(methyl methacrylate) host matrix embedding by copolymerization of a red NIR phosphorescent metal cluster and a blue green 3-oxindole emitter. Irradiation of the homogeneous and stable hybrid films changes the emission color from white to deep red because of the oxygen perturbed energy transfer from the organic dye to the metal cluster. Because of the low PMMA gas permeability, encrypted data lifetime can be tuned from minutes to days, can be self-erased, and be rewritten at will. This material represents a key stepping stone for anticounterfeiting, optoelectronic, data recording, and many other technologies

中文翻译：

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使用双发光混合有机-无机材料的自擦除无墨压印

摘要 能够以可逆方式对外部刺激作出反应的智能发光材料的开发具有挑战性，并且已经成为人们相当感兴趣的主题。在这里，我们提出了一种可印刷的混合材料，可以承受多次写入-擦除循环。这种材料基于聚（甲基丙烯酸甲酯）主体基质，通过红色 NIR 磷光金属簇和蓝绿色 3-羟吲哚发射体共聚嵌入。由于从有机染料到金属簇的氧扰动能量转移，均匀且稳定的杂化膜的辐照使发光颜色从白色变为深红色。由于 PMMA 气体渗透性低，加密数据的寿命可以从几分钟调整到几天，可以自擦除，可以随意改写。这种材料是防伪的关键垫脚石，