期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 143, 期 19, 页码 7501-7508出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.1c02306
关键词
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资金
- European Research Council [ERC-2017-StG-757733]
- Knut and Alice Wallenberg Foundation [KAW 2017.0192]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program [852286]
- European Research Council (ERC) [852286] Funding Source: European Research Council (ERC)
Strong light-matter coupling can modify the molecular potential energy landscape, providing a wide range of applications for manipulating molecular properties; the research shows that energy can relax directly from molecular states to hybrid light-matter states, laying the groundwork for tunable photon upconversion systems.
Strong light-matter coupling generates hybrid states that inherit properties of both light and matter, effectively allowing the modification of the molecular potential energy landscape. This phenomenon opens up a plethora of options for manipulating the properties of molecules, with a broad range of applications in photochemistry and photophysics. In this article, we use strong light-matter coupling to transform an endothermic triplet-triplet annihilation process into an exothermic one. The resulting gradual on-off photon upconversion experiment demonstrates a direct conversion between molecular states and hybrid light-matter states. Our study provides a direct evidence that energy can relax from nonresonant low energy molecular states directly into hybrid light-matter states and lays the groundwork for tunable photon upconversion systems that modify molecular properties in situ by optical cavities rather than with chemical modifications.
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