Prof. Dr. Wolfgang Heiss

(see also Wolfgang’s detailed publication list)

Overview: Solution-Processed-Semiconductor-Materials (SOPSEM) group

Wolfgang Heiss is head of the Solution-Processed-Semiconductor-Materials (SOPSEM) group, which has its facilities located at the Energy-Campus-Nürnberg (Fürther Straße 250, 90429 Nürnberg). Primarily, colloidal nanocrystals from inorganic semiconductors and metal-oxides are synthesized in organic solvents, for electronic device developments and photonic applications. One of the last projects in this respect was devoted to “Smart Windows”, which allow to change transmittance in the visible as well as in the infrared by application of an electrical stimulus. Based on these results, an Start-up was founded in 2023, called Amperial Windows Technologies by a group member (Niall Killilea, team supported by a “Exist Gründerstipendium”.

As a second class of materials metal-halide perovskites are developed, in the form of solution epitaxial microcrystals and films, as single crystals and heterostructures, or as polycrystalline wafers. Applications developed with these materials include lasing, X-ray detection and energy harvesting.

The SOPSEM group consists of members with various backgrounds, covering chemistry, physics and material-science. We continuously offer Bachelor and Master – theses with subjects related to these two work-fields. If you are interested to join the group please send an email.

Recent highlight results:

• Deumel et al.: High-sensitivity high-resolution X-ray imaging with soft-sintered metal halide perovskites, Nature Electronics, 4, 681–688 (2021)
• A. Afifiy et al.: Shape-Controlled Solution-Epitaxial Perovskite Micro-Crystal Lasers Rivaling Vapor Deposited Ones. Advanced Functional Materials 32, 2022 (2206790)