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Organic photostimulated luminescence associated with persistent spin-correlated radical pairs
Communications Materials Pub Date : 2021-07-13 , DOI: 10.1038/s43246-021-00178-3
Manabu Sakurai 1 , Yasuhiro Kobori 1, 2 , Takashi Tachikawa 1, 2 , Ryota Kabe 3, 4 , Zesen Lin 3, 4 , Kazuya Jinnai 4, 5 , Chihaya Adachi 4, 5, 6 , Masaaki Fuki 2
Affiliation  

Photostimulated luminescence allows energy or data to be stored and released using electromagnetic waves as both the input and output, and has attracted considerable interest in the fields of biomedical and information technologies. However, this phenomenon is mostly limited to solid inorganic materials. Here, we report photostimulated luminescence from purely organic blend films, composed of electron donor, acceptor, and trap/emitter molecules. Charges in the films are accumulated as radical ions by ultraviolet light irradiation and then extracted by near-infrared light irradiation. Even after storage in the dark for one week they produce visible light with good repeatability, color tunability, and are responsive to weak external magnetic fields. These findings might broadly impact existing applications and provide new prospects for innovative flexible devices.



中文翻译:

与持久自旋相关自由基对相关的有机光激发发光

光致发光允许使用电磁波作为输入和输出来存储和释放能量或数据,并且在生物医学和信息技术领域引起了相当大的兴趣。然而,这种现象主要限于固体无机材料。在这里,我们报告了由电子供体、受体和陷阱/发射体分子组成的纯有机混合薄膜的光刺激发光。薄膜中的电荷通过紫外光照射以自由基离子的形式积累,然后通过近红外光照射提取。即使在黑暗中储存一周后,它们也会产生具有良好重复性和颜色可调性的可见光,并且对微弱的外部磁场有响应。

更新日期:2021-07-13
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