中国科学技术大学化学物理系张群

zhuimengren

张 群
电话：0551-3607736
传真：0551-3602969
电子邮件：qunzh@ustc.edu.cn
个人主页：http://staff.ustc.edu.cn/~qunzh
个人简介
99年6月, 于中科大化学物理系获理学博士学位; 00年1月至06年12月, 先后在以色列魏茨曼科学研究所和加拿大不列颠哥伦比亚大学从事博士后研究工作; 07年1至4月, 在不列颠哥伦比亚大学先进光谱与成像研究实验室任研究助理; 07年7月起, 在中科大化学物理系暨合肥微尺度物质科学国家实验室原子分子科学研究部任副教授.
研究兴趣
实验: 分子/自由基光解动力学、激光光谱学、物理过程和化学反应量子相干控制之物理实现、原子分子光学物理之光与物质相互作用等; 理论: 量子光学中一些有趣效应的数值模拟和实验设计等.
在研项目
主持国家自然科学基金、教育部留学回国人员启动基金、中科大青年科学基金及中科大优秀引进人才启动基金项目各一项; 参与科技部“973”计划项目及中科院知识创新工程重要方向性项目子课题各一项.
近期论文
[1] M. Ji, J.-F. Zhen, Q. Zhang*, and Y. Chen*, “Photolysis of n-butyl nitrite and isoamyl nitrite at 355 nm: A time-resolved Fourier transform infrared emission spectroscopy and ab initio study”, J. Chem. Phys. 130, xx43xx (2009), in press.
[2] Q. Zhang*, Y. Chen, and M. Keil*, “Laser-induced atomic fragment fluorescence spectroscopy: A facile technique for molecular spectroscopy of spin-forbidden states”, Rev. Sci. Instrum. 80, 033111 (2009).
[3] Q. Zhang*, R. Mao, and Y. Chen, “On the photofragmentation of SF2+: Experimental evidence for a predissociation channel”, J. Chem. Phys. 129, 166101 (2008).
[4] Q. Zhang*, J. W. Hepburn, and M. Shapiro, “Observation of above-threshold dissociation of Na2+ in intense laser fields”, Phys. Rev. A (Rap. Comm.) 78, 021403 (2008).
[5] Q. Zhang* and J. W. Hepburn, “In situ accurate determination of the zero time delay between two independent ultrashort laser pulses by observing the oscillation of an atomic excited wave packet”, Opt. Lett. 33, 1893 (2008).
[6] Q. Zhang*, X.-G. Zhou, Q.-X. Li, S.-Q. Yu, and X.-X. Ma, “Observation of the 5p Rydberg states of sulfur difluoride radical by resonance-enhanced multiphoto

beimari

题目：光催化纳米材料体系中的超快空穴动力学
报告人： 张群教授，中国科学技术大学化学物理系
时间：  9月20日 (周四) 上午10:00
地点：  上海交通大学化学楼A五楼518报告厅
邀请人：任吉存 教授


报告人简介：
Qun Zhang（张群教授） earned a PhD degree of chemical physics from the Univ. of Sci. & Tech. of China (USTC) in 1999. After a seven-year stint as a postdoctoral fellow and research associate at the Weizmann Institute of Science (2000–2003) and the University of British Columbia (2003–2007), he joined the USTC and Hefei National Laboratory for Physical Sciences at the Microscale (HFNL), working initially on gas-phase molecular spectroscopy & reaction dynamics (2007–2012).

Since 2012 he has been devoted to establishing from scratch an ultrafast laser laboratory and then working on condensed-phase spectroscopy & dynamics (2012–now). At present he holds a position of full professor in chemical physics at the USTC/HFNL.

In the fields of spectroscopy/dynamics & photophysics/photochemistry, he has authored 110+ research papers in peer-reviewed journals, including Nature Commun. (1), Phys. Rev. Lett. (1), J. Phys. Chem. Lett. (3), J. Am. Chem. Soc. (8), Angew. Chem. (8), and Adv. Mater. (6).

He is currently the PI of the project “Ultrafast Dynamics Characterizations of Nanostructures” (2016–2021) under the National Key R&D Program on Nano Sci. & Tech. (Gr. 2016YFA0200602) funded by the Ministry of Sci. & Tech. of China.




报告内容简介：
In this talk I will report our recent progress in the experimental investigations of photoexcited hole dynamics in photocatalytic nanomaterial systems by means of ultrafast spectroscopy.

First, we revealed the photoexcited hole transfer in a unique semiconductor–metal–graphene stack structure, which allows for efficiently harnessing charge flow for photocatalysis [1].

Second, we demonstrated a molecular co-catalysis strategy to accelerate hole transfer for enhanced photocatalytic hydrogen evolution [2].

Third, we identified the ultrafast reverse hole transfer at the interface of photoexcited methanol/g-C3N4 system, deciphering from the ultrafast dynamics perspective the fundamental reason why methanol functions as an efficient hole scavenger in photocatalytic applications [3].


References
[1] S. Bai et al., Adv. Mater. 26, 5689 (2014).
[2] W. Bi et al., Nat. Commun. 6, 8647 (2015).
[3] Z. Chen et al., Angew. Chem. Int. Ed. 57, 5320 (2018).