方案摘要
方案下载应用领域 | 石油/化工 |
检测样本 | 其他 |
检测项目 | 理化分析 |
参考标准 | 暂无 |
该应用2018年在自然杂志上作为研究通信被报道过。采用时间分辨泵浦探针光谱学和Ekspla公司的振动和频光谱测量系统,对二维有机金属晶体中局域激子的振动指纹进行了实验研究。
Long-lived excitons formed upon visible light absorption play an essential role in photovoltaics,photocatalysis, and even in high-density information storage. Here, we describe a self-assembled two-dimensional metal-organic crystal, composed of graphene-supported
macrocycles, each hosting a single FeN4 center, where a single carbon monoxide molecule
can adsorb. In this heme-like biomimetic model system, excitons are generated by visible
laser light upon a spin transition associated with the layer 2D crystallinity, and are simultaneously detected via the carbon monoxide ligand stretching mode at room temperature and near-ambient pressure. The proposed mechanism is supported by the results of infrared and time-resolved pump-probe spectroscopies, and by ab initio theoretical methods, opening a path towards the handling of exciton dynamics on 2D biomimetic crystals.
在一个双稳湍流涡旋火焰中,对间歇性动态的时间-频率定位
Particle-laden Taylor-Couette流:高阶转变和径向局部波浪涡旋的证据
7根杆束的流体-结构相互作用:用实验数据对比数值模拟
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