报告人：Dr. Ingo Salzmann (Humboldt Universität zu Berlin, Germany)
报告题目：Correlating Structure to Electronic Properties in Molecularly Doped Organic Semiconductors
报告时间：2016年3月1日（星期二）上午9：30
报告地点：909楼一楼B厅
摘要
In the field of Organic Electronics, the molecular electrical doping of organic semiconductors (OSCs) has emerged as key strategy to improve the performance of organic (opto-)electronic devices and to extend their range of functionality. However, despite impressive success in practical applications, the fundamental processes underlying molecular electrical doping are still not fully understood to date, which precludes further progress.
In the present colloquium, I provide an overview on my work focusing, in general, on the microstructure of thin OSC films as assessed by X-ray diffraction techniques, and, in particular, on the interrelation between structure and electronic properties upon molecular electrical doping. In this context, I will discuss the role of ground-state charge transfer complex formation upon doping prototypical OSCs, where their mixed crystalline growth with the dopant species is observed. In the prospect of providing a unifying model for the molecular electrical doping of all types of organic semiconductors, that is, conjugated molecules and conjugated polymers, I pin down profound differences between the fundamental mechanisms at work in these two materials classes despite identical chemical composition and similar microstructure. Based on these insights emerge novel design rules for future, more efficient molecular dopants through targeted chemical design.
简介
Education
Doctoral thesis at Humboldt Universität zu Berlin, Institut für Physik
2008: Dr. rer. nat., graduation summa cum laude
Thesis: “Structural and energetic properties of pentacene derivatives and heterostructures”
Studies of “Technical Physics”, Graz University of Technology (Austria)
2003: second diploma exam with excellence (Dipl.-Ing.)
Thesis: “Structural order in epitaxially grown oligo-phenylene thin-films on metallic surfaces”
Studies of “Astronomy” at Graz University (Austria), first diploma exam (2002)
1992: University-entrance diploma (Secondary School for Modern Languages, Linz, Austria)
Scientific job history
2014: Short-listed for faculty position at University of Ottawa, Canada (department of physics)
2013: Short-listed for faculty position at Université Libre de Bruxelles (department of physics)
2009: Visiting researcher at Chiba University, Japan (Prof. Ueno, 2 months)
2008-2015: Postdoctoral Research Associate
Humboldt Universität zu Berlin, Institut für Physik, Supramolecular Systems
2004-2008: Research Associate
Humboldt Universität zu Berlin, Institut für Physik, Macromolecular Systems
2003: Research Assistant at Graz University of Technology