在烯中量化更高电子激发状态的放松动态
Rohan J Hudson1,2, Anjay Manian3,2, Christopher R Hall1,2
1School of Chemistry, The University of Melbourne, Parkville 3010, VIC, Australia.
The journal of physical chemistry letters
|August 31, 2023
概括
研究人员探索了烯.
科学领域:
- 物理化学 物理化学
- 材料科学 材料科学 材料科学
- 量子计算是一种量子计算.
背景情况:
- 使用高电子激发状态进行逻辑运算,为超快的亚纳米计算设备提供了潜力.
- 烯衍生物在更高的激发状态下表现出有趣的光物理,但它们的实际应用受到缺乏足够长寿命状态的限制.
研究的目的:
- 为了识别和量化单体烯的更高电子激发状态的放松动态.
- 评估烯在超高速计算设备中的更高电子状态的潜力.
主要方法:
- 五秒光谱检测激发状态的动态.
- 量子化学计算以支持实验发现.
- 通过单光子吸收和系统间交叉激发特定烯状态 (21B2u和21A<0xE2><0x82><0x99>).
主要成果:
- 填充了烯的21A<0xE2><0x82><0x99>和21B2u状态,并量化了它们的放松动态.
- 确定21A<0xE2><0x82><0x99>和21B2u状态的寿命分别为340 fs和530 fs.
- 这些状态的人口导致亚平秒放松到11B3u状态.
结论:
- 烯的较高电子状态的寿命远远长于单片裂变时间常数.
- 这些寿命较长的状态表明,对于先进的计算设备来说,在关闭逻辑操作方面具有潜在的实用性.
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