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organic semiconductors

The interlayer method: A universal tool for energy level alignment tuning at inorganic/organic semiconductor heterojunctions

T. Schultz et al. | Adv. Funct. Mater. 31 (2021)

Here, a universal approach to adjust the offset between the energy levels at inorganic/organic semiconductor interfaces is demonstrated. By inserting strong electron donor or acceptor molecules between two semiconductors, the level alignment can be tuned over an unprecedented range of 1.8 eV.


Position-locking of volatile reaction products by atmosphere and capping layers slows down photodecomposition of methylammonium lead triiodide perovskite

F. Zu et al. | RSC Adv. 10 (2020)

The remarkable progress of metal halide perovskites in photovoltaics has led to the power conversion efficiency approaching 26%. However, practical applications of perovskite-based solar cells are challenged by the stability issues, of which the most critical one is photo-induced degradation. Bare...

2D semiconductors

Excited-State Charge Transfer Enabling MoS₂/Phthalocyanine Photodetectors with Extended Spectral Sensitivity

N. Mutz et al. | J. Phys. Chem. C 124 (2020)

In this paper we explored the interface between the transition metal dichalcogenide MoS2 and the non-metallated molecule phthalocyanine H2Pc. By measuring UPS and inverse PES of the bare MoS2 and in combination with a thin layer of H2Pc, a type II energy level alignment between MoS2 and H2Pc could...


The IOP – Humboldt Postdoctoral Fellowship in Physics

Nominations are open for postdoctoral fellowships between two cities, Berlin and Beijing, as part of a joint physics program between…

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New doctoral program “Ciencia y Tecnología de Materiales” at Pontificia Universidad Javeriana

Two speakers from Berlin (HU and HZB) at the inaugural symposium of the new doctoral program “Ciencia y Tecnología de…

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Graduate School “Advanced Materials”: First admission of members

This April, the Graduate School "Advanced Materials" (GS-AM) admitted 22 doctoral students as members, from HU Berlin, FU Berlin, TU…

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Graduate School "Advanced Materials"


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Integrative Research Institute for the Sciences

Helmholtz-Zentrum Berlin

Department of Physics

Humboldt-Universität zu Berlin