报告人：Dr.Ingo Salzmann (Humboldt Universität zu Berlin, Germany)

报告题目：Correlating Structure to Electronic Properties inMolecularly 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 ofOrganic 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 processesunderlying molecular electrical doping are still not fully understood to date,which precludes further progress.

In the presentcolloquium, I provide an overview on my work focusing, in general, on themicrostructure of thin OSC films as assessed by X-ray diffraction techniques,and, in particular, on the interrelation between structure and electronicproperties upon molecular electrical doping. In this context, I will discussthe role of ground-state charge transfer complex formation upon dopingprototypical OSCs, where their mixed crystalline growth with the dopant speciesis observed. In the prospect of providing a unifying model for the molecularelectrical doping of all types of organic semiconductors, that is, conjugatedmolecules and conjugated polymers, I pin down profound differences between thefundamental mechanisms at work in these two materials classes despite identicalchemical composition and similar microstructure. Based on these insights emergenovel design rules for future, more efficient molecular dopants throughtargeted chemical design.

简介

Education

Doctoral thesis at Humboldt Universität zu Berlin, Institut fürPhysik

2008: Dr. rer. nat., graduation summa cum laude

          Thesis: “Structural and energetic properties of pentacenederivatives 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-phenylenethin-films on metallic surfaces”

          Studies of “Astronomy” at Graz University (Austria), firstdiploma exam (2002)

1992: University-entrance diploma (Secondary School for ModernLanguages, 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 deBruxelles (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