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 four 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.

Current Events
Manish Chhowalla
Stefan Kirstein

Manish Chhowalla

Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, United Kingdom

Emergent Devices Enabled by van der Waals Contacts on 2D Transition Metal Dichalcogenides


Stefan Kirstein

Department of Physics, Humboldt-Universität zu Berlin, Germany

2D materials on mica and molecular liquid layers: strain vs. charge doping


Time: Thursday, 19.05.2022, 15:15

Location: Erwin-Schrödinger-Zentrum, Room 0'119, Rudower Chaussee 25, 12489 Berlin, and ZOOM


Natalie Banerji
Norbert Koch

Natalie Banerji

Department of Chemistry and Biochemistry, University of Bern, Switzerland

Conductivity and charge transfer dynamics in electrochemically doped P3HT


Norbert Koch

Department of Physics and IRIS Adlershof, Humboldt-Universität zu Berlin, Germany; Helmholtz-Zentrum Berlin für Materialien und Energie, Germany

(i) The Schottky–Mott Rule Expanded for Two-Dimensional Semiconductors, and (ii) Photoexcitation-induced energy level realignment at semiconductor heterojunctions


Time: Thursday, 23.06.2022, 15:15

Location: Campus Adlerhof

Recent Research Highlights
Temperature-Dependent Electronic Ground-State Charge Transfer in van der Waals Heterostructures


The authors of this CRC 951 research highlight experimentally observed that the amount of ground-state charge transfer in a van der Waals (vdW) heterostructure increases by a factor of 3 when going from 7 K to room temperature. State-of-the-art electronic structure calculations of the full heterostructure reveal intracomponent electron–phonon coupling and inter-component electronic coupling as the key factors determining the amount of charge transfer.


S. Park et al.

Adv. Mater 33, 2008677 (2021)

DOI: 10.1002/adma.202008677

A rod of light in the light cage – a new basis for quantum-optically integrated light-matter interaction on a chip


The authors of this CRC 951 research highlight have integrated a novel on-chip hollow-core light cage into an alkali atom vapor cell.


F. Davidson-Marquis et al.

Light Sci. Appl. 10, 114

DOI: 10.1038/s41377-021-00556-z

Type-I Energy Level Alignment at the PTCDA—Monolayer MoS2 Interface Promotes Resonance Energy Transfer and Luminescence Enhancement


The authors of this CRC 951 research highlight demonstrate by direct and inverse photoelectron spectroscopy that the energy level alignment at the interface of PTCDA and monolayer ML-MoS2 corresponds to a type-I heterojunction.


S. Park et al.

Adv. Sci. (2021)

DOI: 10.1002/advs.202100215

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.