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北达科他州立大学Wenfang Sun教授来实验室访问并作学术报告
信息来源:吉林大学超分子结构与材料国家重点实验室     发布时间:2014-08-26

报告题目:Heteroleptic Cationic Iridium(III) Complexes as Nonlinear Absorbing Materials
报告人: Professor Wenfang Sun
              Department of Chemistry and Biochemistry,
              North Dakota State University, USA

报告时间:2014年8月28日(星期四)下午15:30
报告地点:无机/超分子楼 楼 A401会议室

报告人简介:

EDUCATION
Ph.D. Organic Chemistry, Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing, China, July 1995
Ph.D. Dissertation: Asymmetric Pentaazadentate Porphyrin-like Metal Complexes: Synthesis, Excited-State Properties, and Applications for Optical Limiting and Photodynamic Therapy
B.S. Organic Chemistry, Wuhan University, Wuhan, China, July 1990
PROFESSIONAL  EXPERIENCE
2011 – Present  Professor and Walter F. and Verna Gehrts Professor, Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND
Aug. 2007 – 2011 Associate Professor, Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND
Aug. 2001 – July 2007 Assistant Professor, Department of Chemistry and Molecular Biology, North Dakota State University, Fargo, ND
RESEARCH  INTERESTS
Organic/organometallic nonlinear optical materials
Organic/organometallic light emitting materials
Photosensitizers for photodynamic therapy
Optical sensors

报告摘要:

Organic materials with broadband nonlinear absorption in the visible to the near-IR region are desired for a variety of photonic device applications. Ir(III) complexes are promising candidates for these applications due to the weak direct transition from the ground state to the triplet excited state and the broadband excited-state absorption in the visible to the near-IR region. The ease of structural modifications also makes them good candidates for structure-property correlation study. To optimize the reverse saturable absorption (RSA) of Ir(III) complexes, we designed and synthesized several series of heteroleptic cationic Ir(III) complexes with different diimine ligands, different substituents on the cyclometalating ligands and different degrees of -conjugation on the diimine ligand and/or cyclometalating ligands. The photophysical properties of these complexes, including UV-vis absorption, emission, and transient absorption were systematically investigated.

 
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