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Humboldt-Universität zu Berlin - Mathematisch-Naturwissen­schaft­liche Fakultät - SFB 951 - HIOS

Collaborative Research Centre 951 - CRC 951
Sonderforschungs­bereich 951 - SFB 951

The CRC 951 - Hybrid Inorganic/Organic Systems for Opto-Electronics (HIOS) - is an interdisciplinary effort bringing together scientists with complementary expertise from three universities and two non-university institutions. The goal is the merger of inorganic semiconductors, conjugated organic materials, and metal nanostructures into novel hybrid structures. Elucidating and tailoring the fundamental chemical, electronic, and photonic interactions in these systems will enable us the development of functional elements exhibiting superior opto-electronic functionalities not achievable with any of the individual material classes alone. The CRC 951 was founded in July 2011 and is currently in its third funding period (2019-2023).

Learn more about the interesting concepts and ideas of HIOS in our clip.

♦ Interview of Claudia Draxl & Emil List-Kratochvil about HIOS material research ♦

♦ Student assistant position available ♦

Current Events
13.11.2019 - 14.11.2019
Scientific Writing WORKSHOP

Academic and Scientific Writing in English

Time: Wednesday and Thursday, 13.11.-14.11.2019

Location: IRIS Adlershof,
Zum Großen Windkanal 6,
Room 007

More Information.

Ulrich Höfer
Katharina Franke

Ulrich Höfer

Fachbereich Physik, Philipps-Universität Marburg, Germany

Ultrafast spectroscopy of electron transport at surfaces and internal interfaces


Katharina Franke

Department of Physics, Freie Universität Berlin, Germany

Scanning tunneling spectroscopy of organic molecules on single-layer MoS2 on Au(111)


Time: Thursday, 28.11.2019, 15:15

Location: Erwin-Schrödinger-Zentrum,
Rudower Chaussee 26,
Room 0‘119


Bert Hecht
Günter Kewes

Bert Hecht

Experimental Physics, Universität Würzburg, Germany

Günter Kewes

Department of Physics, Humboldt-Universität zu Berlin, Germany

View all CRC 951 Events


Recent Research Highlights
Demonstration of the key substrate-dependent charge transfer mechanisms between monolayer MoS2 and molecular dopants


The authors of this CRC 951 research highlight demonstrate that the charge transfer (CT) mechanism between two-dimensional transition metal dichalcogenide (TMDC) semiconductors and molecular dopant depends critically on the electrical nature of the substrate as well as its electronic coupling with the TMDC.


S. Park, et al.

Communications Physics 2, 109 (2019)

DOI: 10.1038/s42005-019-0212-y

Gap states induce soft Fermi level pinning upon charge transfer at ZnO/molecular acceptor interfaces


The authors of this CRC 951 research highlight elucidate the origin of limited upward band bending by revealing a notable gap state density-of-states (GDOS)
using high-sensitivity photoemission spectros­copy. Upon acceptor-induced upward band bending, the GDOS with a wide energy distribution becomes increasingly unoccupied.


R. Schlesinger, et al.

Phys. Rev. Materials 3, 074601 (2019)

DOI: 10.1103/PhysRevMaterials.­3.074601

Unraveling the electronic properties of lead halide perovskites with surface photovoltage in photoemission studies


The authors of this CRC 951 research highlight demonstrate that the surface photovoltage (SPV) is a key phenomenon occurring at the perovskite surfaces that feature a non-negligible density of surface states, which is more the rule than an exception for most materials understudy.


F. Zu, et al.

ACS Appl. Mater. Interfaces 11, 21578 (2019)

DOI: 10.1021/acsami.9b05293

View all CRC 951 Research Highlights


Topically, HIOS is part of the Integrative Research Institute for the Sciences (IRIS Adlershof) where hybrid systems are one of the strategic focal points. IRIS is also supporting the CRC 951 by providing office space and assistance in the organization of scientific events.


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