期刊
JOURNAL OF PHYSICAL CHEMISTRY A
卷 122, 期 49, 页码 9579-9584出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpca.8b08455
关键词
-
资金
- JSPS KAKENHI [JP17K17893, JP18H05208, JP17K20065, JP15H02103]
- Sasakawa Scientific Research Grant from The Japan Science Society [29-125]
We developed a system to deposit H2O molecules onto ultrathin silicon nitride substrates in situ using time-resolved transmission electron diffraction apparatus and performed ultrafast time-resolved electron diffraction measurements in the noncrystalline (amorphous) H2O under near-ultraviolet photoexcitation. The observed dynamics directly represent O-H bond dissociation via multiphoton absorption and charge transfer, which trigger ionization and intermolecular disorder in the amorphous H2O. Our results illustrate the intriguing nature of light-matter and matter-matter interactions in H2O molecules.
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