Single-molecule laser nanospectroscopy with micro–electron volt energy resolution

doi:10.1126/science.abg8790

GSTDTAP > 气候变化

DOI	10.1126/science.abg8790
	Single-molecule laser nanospectroscopy with micro–electron volt energy resolution
	Hiroshi Imada; Miyabi Imai-Imada; Kuniyuki Miwa; Hidemasa Yamane; Takeshi Iwasa; Yusuke Tanaka; Naoyuki Toriumi; Kensuke Kimura; Nobuhiko Yokoshi; Atsuya Muranaka; Masanobu Uchiyama; Tetsuya Taketsugu; Yuichiro K. Kato; Hajime Ishihara; Yousoo Kim
	2021-07-02
发表期刊	Science
出版年	2021
英文摘要	Microscopic understanding and molecular-level control of individual electronic quantum states of a single molecule are a long-standing challenge in spectroscopy. Imada et al. found that a narrow-line tunable laser combined with a scanning tunneling microscope was able to generate photoluminescence spectra of the electronic and vibrational states of single molecules with micro–electron volt energy resolution and submolecular spatial resolution. The authors also discovered a way to tune the energy levels through a linear Stark effect and plasmon-exciton coupling in the tunneling junction. The proposed technique paves the way to efficient exploitation of energy conversion dynamics in electronic excited states, which constitutes the bedrock principle of such systems as LEDs, photovoltaics, and photosynthetic cells. Science , abg8790, this issue p. [95][1] Ways to characterize and control excited states at the single-molecule and atomic levels are needed to exploit excitation-triggered energy-conversion processes. Here, we present a single-molecule spectroscopic method with micro–electron volt energy and submolecular-spatial resolution using laser driving of nanocavity plasmons to induce molecular luminescence in scanning tunneling microscopy. This tunable and monochromatic nanoprobe allows state-selective characterization of the energy levels and linewidths of individual electronic and vibrational quantum states of a single molecule. Moreover, we demonstrate that the energy levels of the states can be finely tuned by using the Stark effect and plasmon-exciton coupling in the tunneling junction. Our technique and findings open a route to the creation of designed energy-converting functions by using tuned energy levels of molecular systems. [1]: /lookup/doi/10.1126/science.abg8790
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/334185
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Hiroshi Imada,Miyabi Imai-Imada,Kuniyuki Miwa,等. Single-molecule laser nanospectroscopy with micro–electron volt energy resolution[J]. Science,2021.
APA	Hiroshi Imada.,Miyabi Imai-Imada.,Kuniyuki Miwa.,Hidemasa Yamane.,Takeshi Iwasa.,...&Yousoo Kim.(2021).Single-molecule laser nanospectroscopy with micro–electron volt energy resolution.Science.
MLA	Hiroshi Imada,et al."Single-molecule laser nanospectroscopy with micro–electron volt energy resolution".Science (2021).