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首页> 外文期刊>Nanotechnology >Fluorochromic polymer films containing ultrasmall silver nanoclusters
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Fluorochromic polymer films containing ultrasmall silver nanoclusters

机译：含有超大银纳米团簇的荧光致铬聚合物膜

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Fluorochromic materials that change their emission properties in response to their environment are of interest for the development of sensors, optical data storage and light-emitting materials. A thermally fluorochromic elastic polymer film that exhibits remarkable fluorochromism (from red to yellow) and enhancement of fluorescence intensity after thermal treatment (>120 degrees C) is designed by the incorporation of silver nanoclusters. The thermal treatment also leads to a significant increase of quantum yield and fluorescence lifetime. It is found that the thermo-induced etching on larger silver nanoclusters generates smaller silver nanoclusters. This simple and efficient size-tuning process in solid state is responsible for the thermo-fluorochromism and enhancement of fluorescence emission from silver nanoclusters. Such a thermo-fluorochromic polymer material is finally demonstrated to be useful for thermo-printing. This material illustrates a new way to make smart optical materials, particularly for potential applications in optical data storage and soft OLED display.
机译：改变其排放性能的荧光致载材料，以响应其环境对传感器，光学数据存储和发光材料的开发感兴趣。通过掺入银纳米能器设计了一种热荧光荧光体（从红色至黄色）和热处理（> 120℃）后的荧光强度的提高。热处理也导致量子产量和荧光寿命的显着增加。发现在较大的较大的银纳米蛋白上的热诱导的蚀刻产生较小的银纳米团簇。这种固态的简单高效的尺寸调谐过程负责热荧光料和来自银纳米团簇的荧光发射的增强。这种热荧光致铬聚合物材料最终证明可用于热印刷。该材料说明了制造智能光学材料的新方法，特别是对于光学数据存储和软OLED显示器中的潜在应用。

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