报告人：Prof. Norbert Koch
Humboldt-Universit?t zu Berlin, Germany
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Germany
题目：Controlling the energy level alignment at hybrid inorganic/organic semiconductor interfaces
时间：10:00 am, Sep. 16th （Wednesday）
地点：Conference Room B, BLDG 909-1F
Controlling the energy level alignment at hybrid inorganic/organic semiconductor interfaces is required to enable a desired functionality of that heterostructure. For instance, a type-II alignment may facilitate charge separation while a type-I alignment would allow for energy transfer and radiative recombination. For the inorganic semiconductor ZnO, two types of molecular interlayers can be employed to tune the energy level alignment with respect to an organic semiconductor deposited on top. These are (i) covalently bonded self-assembled monolayers with dipoles and (ii) strong molecular acceptors and donors.
The underlying, fundamentally different, mechanisms giving rise to the level tuning with both interlayer types are discussed, and the impact of different level alignment on hybrid heterostructure function (energy and charge transfer) is demonstrated.
联系人： Prof. Steffen Duhm