Photoemissions from aqueous solutions are prone to elastic and inelastic electron scattering, streaming potential, and space charge effect errors; however, direct assessments of their individual contributions are still a daunting challenge. Herein, to assess how these errors in a combined experimental error manner influence on the genuine photoelectron kinetic energy (PKE) spectra, the ultraviolet PKE (or electron binding energy, eBE) spectra of aqueous thymidine at different solution flow rates and laser energies were investigated by femtosecond liquid-microjet photoelectron spectroscopy. The accurate vertical eBE value of 11.33 eV for the lbi orbital of liquid water was used to calibrate the observed eBE spectra of aqueous thymidine, and the corresponding combined experimental error for the eBE of the lbi orbital of liquid water was estimated to be about 200 meV. The average combined experimental error for the vertical eBE values of the cationic ground state D0(π−1) and the cationic first excited state D1(n-−1) of aqueous thymidine was estimated to be less than 3%, i.e., in the range of several tens of meV to 200 meV, depending on different flow rates and laser energies.
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June 2024
Research Article|
June 01 2024
Ultraviolet photoemission spectra of aqueous thymidine by liquid-microjet photoelectron spectroscopy: A combined experimental error assessment†
Special Collection:
In Memory of Prof. Qihe Zhu on the occasion of his 100th Anniversary
Piao Xu;
Piao Xu
a
Department of Applied Physics, Wuhan University of Science and Technology
, Wuhan 430081, China
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Jianduo Lu;
Jianduo Lu
a
Department of Applied Physics, Wuhan University of Science and Technology
, Wuhan 430081, China
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Dongdong Wang;
Dongdong Wang
b
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences
, Wuhan 430071, China
c
University of Chinese Academy of Sciences
, Beijing 100049, China
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Duoduo Li;
Duoduo Li
b
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences
, Wuhan 430071, China
c
University of Chinese Academy of Sciences
, Beijing 100049, China
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Jinyou Long;
Jinyou Long
*
b
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences
, Wuhan 430071, China
c
University of Chinese Academy of Sciences
, Beijing 100049, China
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Song Zhang;
Song Zhang
*
b
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences
, Wuhan 430071, China
c
University of Chinese Academy of Sciences
, Beijing 100049, China
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Bing Zhang
Bing Zhang
b
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences
, Wuhan 430071, China
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†
Part of Special Issue “In Memory of Prof. Qihe Zhu on the occasion of his 100th Aniversary”.
Chin. J. Chem. Phys. 37, 439–448 (2024)
Article history
Received:
February 28 2024
Accepted:
March 08 2024
Citation
Piao Xu, Jianduo Lu, Dongdong Wang, Duoduo Li, Jinyou Long, Song Zhang, Bing Zhang; Ultraviolet photoemission spectra of aqueous thymidine by liquid-microjet photoelectron spectroscopy: A combined experimental error assessment. Chin. J. Chem. Phys. 1 June 2024; 37 (3): 439–448. https://doi.org/10.1063/1674-0068/cjcp2402024
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