通过聚合物发光二极管的弹性体混合物实现了内在可拉伸的三种主要发光薄膜
Min Woo Jeong1, Jin Hyun Ma2,3, Jae Seung Shin2,3
1Department of Chemical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin, Gyeonggi, 17104, Korea.
Science advances
|June 21, 2023
概括
研究人员开发了高度可拉伸的红色,绿色和蓝色 (RGB) 发光膜,用于全彩色,类似皮肤的可穿戴显示器. 这些新材料保持稳定的光发射,即使在显著的应变和重复的拉伸下.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 光电学是指光电子产品.
背景情况:
- 本质上可拉伸的发光材料对于先进的可穿戴显示器至关重要,可以实现类似皮肤的接口.
- 目前的可拉伸材料仅限于黄色-绿色色调,阻碍了全彩显示器的开发.
- 实现红色,绿色和蓝色 (RGB) 本质上可拉伸的发射器对于类似皮肤的全彩显示器至关重要.
研究的目的:
- 在红色,绿色和蓝色 (RGB) 中设计内在可拉伸的初级发光膜.
- 创建一个聚合物混合系统,能够在机械应变下稳定,高效的光发射.
- 展示这些材料在下一代可穿戴电子显示器中的潜力.
主要方法:
- 使用常规RGB发光聚合物和非极性弹性体的聚合物混合物制造内在可拉伸的发光薄膜.
- 混合膜的纳米结构的表征,揭示了在弹性体内相互连接的发光聚合物纳米领域.
- 评估薄膜的光电子特性,包括亮度,开启电压和在机械应变下稳定性 (在1000个周期内最大100%的应变).
主要成果:
- 从一种新的聚合物混合物中开发了三种高度可拉伸的初级发光薄膜 (红色,绿色,蓝色).
- 混合膜展示了多维的纳米领域,以在应力下有效发射光.
- 在低开启电压下 (<5 V) 达到超过1000 cd/m2的亮度.
- 经过1000次拉伸周期后,即使在100%的应变下,也证明了稳定的发光性能.
结论:
- 通过聚合物混合战略成功开发了内在可拉伸的RGB发光膜.
- 工程膜提供高亮度和出色的伸展性,克服了以前的颜色限制.
- 这些材料对创建先进的,全彩的,类似皮肤的可穿戴显示器充满希望.
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