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國立清華大學化學系 Department of Chemistry
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鄭博元




 
職稱：
教授                                                                   
學歷：
美國喬治亞大學博士 (1990)
輔仁大學學士 (1983)
辦公室位置：
化學館B18
辦公室分機：
實驗室分機：
(03)5715131 ext 31172
(03)5715131 ext 33423
電子信箱：
個人網站：

經歷：
2005 ~
2001 ~ 2005
1996 ~ 2001
1994 ~ 1996
1990 ~ 1994
 國立清華大學教授
國立清華大學副教授
國立清華大學副教授A(=助理教授)
博士後研究：美國加州理工學院
博士後研究：美國賓州大學

研究領域：
物理化學、雷射化學

期刊論文：
  1. Peng-Yun Wang, Yu-Cheng Hsu, Pin-Hsun Chen, Guan-Yu Chen, Yi-Kai Liao and Po-Yuan Cheng*, “Solvent-polarity dependence of ultrafast excited-state dynamics of trans-4-nitrostilbene” Phys. Chem. Chem. Phys. Phys. 26, 788–807 (2024).
  2. J. W. Ho and P. Y. Cheng*, “Ultrafast excited-state dynamics of gas-phase 5-methylcytosine tautomers” J. Chin. Chem. Soc. 69, 107 (2022).
  3. J. Y. Wu and Po-Yuan Cheng* “Ultrafast Protonation of an Amide: “Photoionization-Induced Proton Transfer in Phenol-Dimethylformamide Complex Cation” J. Phys. Chem. A 123, 10700-10713 (2019).
  4. S. C. Wei, J. W. Ho, H.C. Yen, H. Q. Shi, L. H. Cheng, C. N. Weng, W. K. Chou, C. C. Chiu, and P. Y. Cheng* “Ultrafast Excited-State Dynamics of Hydrogen-Bonded Cytosine Microsolvated Clusters with Protic and Aprotic Polar Solvents” J. Phys. Chem. A 122, 9412 (2018).
  5. C. C. Shen, T. T. Tsai, J. Y. Wu, J. W. Ho, Y. W. Chen, and P. Y. Cheng* “Watching proton transfer in real time: Ultrafast photoionization-induced proton transfer in phenol-ammonia complex cation” J. Chem. Phys. 147, 164302 (2017).
  6. C. C. Chiu, C. C. Hung, and P. Y. Cheng* “Ultrafast Charge Recombination Dynamics in Ternary Electron Donor–Acceptor Complexes: (Benzene)2-Tetracyanoethylene Complexes” J. Phys. Chem. B 120, 12390-12403 (2016).
  7. J. W. Ho, H. C. Yen, H. Q. Shi, L. H. Cheng, C. N. Weng, W. K. Chou, C. C. Chiu, and P. Y. Cheng* “Microhydration Effects on the Ultrafast Photodynamics of Cytosine: Evidences for a Possible Hydration-Site Dependence” Angew. Chem. Int. Ed. 54, 14772-14776 (2015).
  8. C. C. Chiu, W. C. Chen, P. Y. Cheng* “Excited-state vibrational relaxation and deactivation dynamics of trans-4-(N,N-dimethylamino)-4’-nitrostilbene in nonpolar solvents studied by ultrafast time-resolved broadband fluorescence spectroscopy” J. Photochem. Photobiology A 310, 26-32 (2015).
  9. C. C. Shen, T. T. Tsai, J. W. Ho, Y. W. Chen, and P. Y. Cheng* “Ultrafast Time-Resolved Ion Photofragmentation Spectroscopy of Photoionization-Induced Proton Transfer in Phenol-Ammonia Complex” J. Chem. Phys. 141, 171103 (2014).
  10. C. C. Chiu, C. C. Hung, C. L. Chen, and Po-Yuan Cheng* “Ultrafast Time-Resolved Broadband Fluorescence Studies of the Benzene-Tetracyanoethylene Complex. Solvation, Vibrational Relaxation, and Charge Recombination Dynamics” J. Phys. Chem. B 117, 9734-9756 (2013).
  11. J. W. Ho, H. C. Yen, W. K. Chou, C. N. Weng, L. H. Cheng, H. Q. Shi, S. H. Lai, and P. Y. Cheng* “Disentangling Intrinsic Ultrafast Excited-State Dynamics of Cytosine Tautomers” J. Phys. Chem. A 115, 8406-8418 (2011).
  12. Ho, J.W.; Chen. W.K.; Cheng, P.Y. “Femtosecond pump-probe photoionization-photofragmentation spectroscopy of azobenzene cation” Sci. China Ser. G-Phys. Mech. Astron. 53, 1045 (2010).
  13. J. W. Ho, W. K. Chen, and P. Y. Cheng, “Femtosecond pump-probe photoionization-photofragmentation spectroscopy: Photoionization-induced twisting and coherent vibrational motion of azobenzene cation,” J. Chem. Phys. 131, 134308 (2009).
  14. J. W. Ho, W. K. Chen, and P. Y. Cheng, “Unraveling Complex Three-Body Photodissociation Dynamics of Dimethyl Sulfoxide: a Femtosecond Time-Resolved Spectroscopic Study,” J. Phys. Chem. A 112, 10453 (2008).
  15. J. W. Ho, W. K. Chen, and P. Y. Cheng, “A direct observation of a concerted two-bond breaking reaction” J. Am. Chem. Soc. 129, 3784 (2007).
  16. H. Y. Chen, I. R. Lee, and P. Y. Cheng, “Gas-phase femtosecond transient absorption spectroscopy,” Rev. Sci. Instrum. 77, 076105 (2006).
  17. P. Y. Cheng, J. S. Baskin, and A. H. Zewail, “Dynamics of clusters: From elementary to biological structures,” Proc. Natl. Acad. Sci. USA 103, 10570 (2006).
  18. W. K. Chen, J. W. Ho, and P. Y. Cheng, “Isotope effects in the ultrafast photodissociation of acetone 3s Rydberg state excited at 195 nm” Chem. Phys. Lett. 415, 291 (2005).
  19. W. K. Chen and P. Y. Cheng, “Ultrafast photodissociation dynamics of acetone at 195 nm (II): Unraveling complex three-body dissociation dynamics by femtosecond time-resolved photofragment translational spectroscopy,” J. Phys. Chem. A 109, 6818 (2005).
  20. W. K. Chen, J. W. Ho, and P. Y. Cheng, “Ultrafast Photodissociation Dynamics of Acetone at 195 nm (I): Initial-state, intermediate, and product temporal evolutions by femtosecond mass-selected multiphoton ionization spectroscopy,” J. Phys. Chem. A 109, 6805 (2005).
  21. W. K. Chen, J. W. Ho, and P. Y. Cheng, “Ultrafast photodissociation dynamics of the acetone 3s Rydberg state at 195 nm: a new mechanism,” Chem. Phys. Lett. 380, 411 (2003).
  22. C. Su, J. Y. Lin, R. M. Hsieh, and P. Y. Cheng, “Coherent vibrational motion during the excited-state intramolecular proton transfer in o-hydroxyacetophenone,” J. Phys. Chem. A 106, 11997 (2002).
  23. X. P. Hong, W. K. Chen, and P. Y. Cheng, ”Ultrafast photodissociation dynamics of cyanobenzene near the ionization threshold,” Chem. Phys. Lett. 350, 495 (2001).
  24. I. R. Lee, Y. C. Chung, W. K. Chen, X. P. Hong, and P. Y. Cheng, ”Femtosecond probing of photodissociation dynamics in acyl cyanides,” J. Chem. Phys. 115, 10656 (2001).
  25. I. R. Lee, W. K. Chen, Y. C. Chung, and P. Y. Cheng, “A direct observation of non-RRKM behavior in femtosecond photophysically activated reactions,” J. Phys. Chem. A, 104, 10595 (2000).
  26. C. Lu, R.-M. R. Hsieh, I. R. Lee, and P. Y. Cheng, “Ultrafast dynamics of gas-phase excited-state intramolecular proton transfer in 1-hydroxy-2-acetonaphthone,” Chem. Phys. Lett. 310, 103 (1999).
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