呈现高导电性,并使有机非挥发性光电子记忆器
Yujing Wang1, Qi Gong1, Sai Ho Pun1
1Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
Journal of the American Chemical Society
|August 31, 2022
概括
研究人员从扭曲的双分子中制造出稳定的基离子. 这些 π 结合材料具有高导电性,并使非挥发性光电子存储器件成为可能.
科学领域:
- 有机电子产品
- 材料科学
- 超分子化学
背景情况:
- 由于其独特的π-结合系统,研究了hexabenzoperylene (HBP) 的衍生物.
- 扭曲的双基背骨提供了新的结构和电子特性.
- 开发稳定的基离子对于先进的电子应用至关重要.
研究的目的:
- 从HBP衍生物中合成和表征强的π结合基离子.
- 调查晶体HBP基离子的电导率.
- 探索HBP衍生物在非挥发性光电子记忆器件中的潜力.
主要方法:
- 用不同的链氧化六烯 (HBP) 衍生物 (HBP-B和HBP-H).
- 作为六酸盐的HBP-B基离子的结晶.
- 测量结晶基离子的电导率.
- 对HBP-H的光化学氧化及其固态基离子的表征.
- 用于内存应用的有机场效应晶体管 (OFET) 的制造和测试.
主要成果:
- 从HBP衍生物中成功生成了强大的π结合基离子.
- HBP-B 基离子表现出高电导率 (1.32 ± 0.04 S cm-1).
- 在固体状态下通过光化学氧化形成HBP-H基离子.
- 基于HBP-H的OFET显示具有高对比度 (> 103) 的非挥发性光电子记忆.
- 基于HBP-H的记忆装置在没有专门组件的情况下显示长期稳定性.
结论:
- HBP衍生物可以形成稳定和导电的π结合基离子.
- 这些材料对高性能有机电子设备具有前景.
- 基于HBP-H的OFET为非易失性光电子记忆提供了一种新,稳定和高效的方法.
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