在Diarylethene铁电晶体中无接触操纵写读删除数据存储
Yuan-Yuan Tang1, Yu-Ling Zeng1, Ren-Gen Xiong1
1Ordered Matter Science Research Center, Nanchang University, Nanchang 330031, People's Republic of China.
Journal of the American Chemical Society
|May 10, 2022
概括
研究人员开发了一种基于diarylethene的新型铁电晶体,用于无接触式数据存储. 这些晶体允许光驱动的写入,删除和读取数据,从而实现完整的写入-读取-删除循环.
科学领域:
- 有机电子产品
- 材料科学
- 铁电材料
背景情况:
- 对于非接触式记忆和开关来说, 光学对极化操作是关键.
- 目前的研究缺乏无接触数据读取的方法,这阻碍了完全的写读删除存储.
研究的目的:
- 为无接触式数据存储开发有机铁电半导体.
- 使用光来实现完全无接触的读写-删除数据存储周期.
主要方法:
- 合成的二甲衍生物铁电晶体.
- 使用光驱动的光异构化在开放和封闭形式之间的相位过渡.
- 观察到与不同域状态相对应的颜色和带间隙的变化.
主要成果:
- 乙烯晶体表现出光驱动的相变 (开放/闭合形式) 具有明显的颜色 (白色/蓝色) 和带间隙 (3.26 eV/1.68 eV).
- 已经证明光诱导的写入和删除铁电域.
- 通过观察颜色变化成功读取极化状态.
- 与沙利基丁烯衍生物相比,二甲衍生物具有更高的热稳定性和光转换效率.
结论:
- 这项研究介绍了第一个基于二甲的铁电晶体.
- 在有机铁电半导体中实现了写读删除数据存储的完全无接触操作.
- 突出了乙烯衍生物在先进的光学数据存储应用中的潜力.
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