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Optical Fluorescenc...
Optical Fluorescence Detected from X-ray Irradiated Liquid Water
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- Hans, Andreas (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Ozga, Christian (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Seidel, Robert (författare)
- Helmholtz Zentrum Berlin Mat & Energie, Methods Mat Dev, Albert Einstein Str 15, D-12489 Berlin, Germany.
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- Schmidt, Philipp (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Ueltzhoeffer, Timo (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Holzapfel, Xaver (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Wenzel, Philip (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Reiss, Philipp (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Pohl, Marvin N. (författare)
- Helmholtz Zentrum Berlin Mat & Energie, Methods Mat Dev, Albert Einstein Str 15, D-12489 Berlin, Germany.;Free Univ Berlin, Dept Phys, Arnimallee 14, D-14195 Berlin, Germany.;Max Planck Gesell, Fritz Haber Inst, Faradayweg 4-6, D-14195 Berlin, Germany.
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- Unger, Isaak (författare)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Aziz, Emad F. (författare)
- Helmholtz Zentrum Berlin Mat & Energie, Methods Mat Dev, Albert Einstein Str 15, D-12489 Berlin, Germany.;Free Univ Berlin, Dept Phys, Arnimallee 14, D-14195 Berlin, Germany.;Monash Univ, Sch Chem, Clayton Campus, Clayton, Vic 3800, Australia.
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- Ehresmann, Arno (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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- Slavicek, Petr (författare)
- Univ Chem & Technol Prague, Dept Phys Chem, Tech 5, Prague 16628, Czech Republic.
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- Winter, Bernd (författare)
- Helmholtz Zentrum Berlin Mat & Energie, Methods Mat Dev, Albert Einstein Str 15, D-12489 Berlin, Germany.
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- Knie, Andre (författare)
- Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany.;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany.
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Univ Kassel, Heinrich Plett Str 40, D-34132 Kassel, Germany;Ctr Interdisciplinary Nanostruct Sci & Technol CI, Heinrich Plett Str 40, D-34132 Kassel, Germany. Helmholtz Zentrum Berlin Mat & Energie, Methods Mat Dev, Albert Einstein Str 15, D-12489 Berlin, Germany. (creator_code:org_t)
- 2017-03-01
- 2017
- Engelska.
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Ingår i: Journal of Physical Chemistry B. - : American Chemical Society (ACS). - 1520-6106 .- 1520-5207. ; 121:10, s. 2326-2330
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Despite its importance, the structure and dynamics of liquid water are still poorly understood in many apsects. Here, we report on the observation of optical fluorescence upon soft X-ray irradiation of liquid water. Detection of spectrally resolved fluorescence was achieved by a combination of the liquid microjet technique and fluorescence spectroscopy. We observe a genuine liquid-phase fluorescence manifested by a broad emission band in the 170-340 nm (4-7 eV) photon wavelength range. In addition, another narrower emission near 300 nm can be assigned to the fluorescence of OH (A state) in the gas phase, the emitting species being formed by Auger electrons escaping from liquid water. We argue that the newly observed broad-band emission of liquid water is relevant in search of extraterrestrial life, and we also envision the observed electron-ejection mechanism to find application for exploring solutes at liquid vapor interfaces.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
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Hans, Andreas
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Ozga, Christian
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Seidel, Robert
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Schmidt, Philipp
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Ueltzhoeffer, Ti ...
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Holzapfel, Xaver
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Wenzel, Philip
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Reiss, Philipp
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Pohl, Marvin N.
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Unger, Isaak
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Aziz, Emad F.
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Ehresmann, Arno
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Slavicek, Petr
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Winter, Bernd
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Knie, Andre
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Journal of Physi ...
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Uppsala universitet