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摘要:The rapid progress in smart, portable, flexible, and transparent integrated electronics and optoelectronics is currently one of the driving forces in nanoscience and nanotechnology. A promising approach is the combination of transparent conducting electrode materials(e.g., silver nanowires, AgNWs) and upconverting nanoparticles(UCNPs). In this communication we report on electrochromic devices based on transparent nanocomposite films of poly(methyl methacrylate) and AgNWs covered by UCNPs of different sizes and compositions were developed.[1] By combining the electrical control of the heat dissipation in AgNW networks with size-dependent thermal properties of UCNPs, tuneable electrochromic transparent devices covering a broad range of the chromatic diagrams are fabricated. To calculate the temperature without need of prior calibration,[2] the intensity ratio of the Er3+2H11/2 and 4S3/24 I15/2 transitions were used, together with external controlling the current flow in the AgNW network. Using the intensity ratio of transitions of largeand small-sized UCNPs, a relative thermal sensitivity of 5.88% K-1(at 339 K) is obtained, a six-fold improvement over the values reported so far.[3,4]
会议名称:

第九届国际稀土开发与应用研讨会暨2019中国稀土学会学术年会

会议时间:

2019-05-15

会议地点:

中国北京

  • 专辑:

    工程科技Ⅰ辑

  • 专题:

    材料科学

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    TB383.1

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