Photostimulated desorption of OH radicals from amorphous solid water: Evidence for the interaction of visible light with an OH-ice complex

Miyazaki A.; Watanabe N.; Sameera W. M. C.; Nakai Y.; Tsuge M.; Hama T.; Hidaka H.; Kouchi A.

Title	en Photostimulated desorption of OH radicals from amorphous solid water: Evidence for the interaction of visible light with an OH-ice complex
Creator	en Miyazaki, A. en Watanabe, N. NRID 1000050271531 en Sameera, W. M. C. NRID 1000090791278 en Nakai, Y. en Tsuge, M. en Hama, T. en Hidaka, H. en Kouchi, A. NRID 1000060161866
Accessrights	open access
Rights	en ©2020 American Physical Society
Subject	NDC 420
Description	Abstract en Using a combination of photostimulated desorption and resonance-enhanced multiphoton ionization techniques, OH radicals photodesorbed from amorphous solid water at low temperatures are detected. It was found that the OH photodesorption can be caused by a one-photon process on the surface even at 532 nm, where both isolated OH and H2O are transparent. Quantum chemical calculations reveal that the electronic excitation of OH dramatically changes depending on the adsorption sites and the number of surrounding H2O molecules, and that OH having three hydrogen bonds with neighboring H2O molecules can absorb photons of around 532 nm, which supports the experimental findings.
Publisher	en American Physical Society (APS)
Date	Issued2020-11-20
Language	eng
Resource Type	journal article
Version Type	VoR
Identifier	HDL http://hdl.handle.net/2115/80168
Relation	isIdenticalTo DOI https://doi.org/10.1103/PhysRevA.102.052822
Journal	PISSN 2469-9926 en Physical Review A Volume Number102 Issue Number5 Page Start052822
File	fulltext PhysRevA.102.052822.pdf 1.24 MB (application/pdf) Issued2020-11-20
Oaidate	2023-07-26