...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ACS applied materials & interfaces >Stretchable and Thermally Stable Dual Emission Composite Films of On-Purpose Aggregated Copper Nanoclusters in Carboxylated Polyurethane for Remote White Light-Emitting Devices
【24h】

Stretchable and Thermally Stable Dual Emission Composite Films of On-Purpose Aggregated Copper Nanoclusters in Carboxylated Polyurethane for Remote White Light-Emitting Devices

机译：用于远程白光发射装置的羧化聚氨酯中聚集的铜纳米簇的可拉伸和热稳定双重发射复合膜。

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Stretchable, mechanically stable films with thermally stable dual emission peaked in the blue and orange spectral range are fabricated by condensation and aging of carboxylated polyurethane in the presence of on-purpose aggregated copper nanoclusters. The aggregation of copper clusters leads to the enhancement of their emission in the orange, while polyurethane matrix contributes with the blue emission band, with an overall photoluminescence quantum yield of the films as high as 18%. Composite Cu nanoclusters/polyurethane films are sufficiently transparent over the visible spectral range and are absorbing in the UV range; more than 90% of their emission intensity is preserved after 10 times of cycle of stretch and recovery, as well as aging of up to 10 h at 90 degrees C, making them useful for optoelectronic devices. Remote white light-emitting devices (LEDs) have been fabricated by placing a down-conversion layer of composite Cu nanoclusters/polyurethane film separated through a silicone resin spacer from the UV LED chip, with Commission Internationale de l'Eclairage color coordinates of (0.34, 0.29), and a high color rendering index of 87.
机译：在目标聚集铜纳米团簇的存在下，通过羧基化聚氨酯的缩合和老化，制造出具有在蓝色和橙色光谱范围内达到峰值的热稳定双发射的可拉伸，机械稳定的薄膜。铜团簇的聚集导致其在橙色中的发射增强，而聚氨酯基体在蓝色发射带中起作用，薄膜的整体光致发光量子产率高达18％。 Cu纳米团簇/聚氨酯复合膜在可见光谱范围内足够透明，并且在UV范围内吸收。经过10倍的拉伸和恢复循环后，其90％以上的发射强度得以保留，并在90摄氏度下长达10小时的老化，使其可用于光电器件。通过放置复合Cu纳米团簇/聚氨酯膜的下转换层（通过有机硅树脂垫片从UV LED芯片上分离下来）来制造远程白光发射器件（LED），国际照明委员会的色坐标为（0.34 ，0.29），并且显色指数高达87。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号