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organic semiconductors
Ordered Donor-Acceptor Complex Formation and Electron Transfer in Co-Deposited Films of Structurally Dissimilar Molecules
A. Opitz et al. | J. Phys. Chem. C 124 (2020)
The electrical and optoelectronic properties of organic semiconductor thin films can be tailored by mixing two molecular materials, e.g., by co-deposition. Possible resulting morphologies include phase separation or mixed crystals, which can form either solid solutions or ordered complexes, but it...
perovskites
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
Demonstration of the key substrate-dependent charge transfer mechanisms between monolayer MoS2 and molecular dopants
S. Park et al. | Commun. Phys. 2 (2019)
Tuning the Fermi level (EF) in two-dimensional transition metal dichalcogenide (TMDC) semiconductors is crucial for optimizing their application in (opto-)electronic devices. Doping by molecular electron acceptors and donors has been suggested as a promising method to achieve...
News
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…
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…
Opening Event Graduate School „Advanced Materials“
The opening Event of the Graduate School “Advanced Materials” will be in an electronic format at the end of March.…
Integrative Research Institute for the Sciences
Helmholtz-Zentrum Berlin
Department of Physics
Humboldt-Universität zu Berlin
