ESR5: Photo-induced excited-state properties of molecular sensors and supramolecular logic gates in solution and membrane models

at Leibniz-Institute of Photonic Technology Jena/Germany
Department Functional Interfaces
Prof. Dr. Benjamin Dietzek (

Candidates with a background in physics, chemistry, photonics or optical engineering are invited to apply for a PhD position in the department of Functional Interfaces (head: Prof. Benjamin Dietzek) at Leibniz Institute of Photonic Technology (Leibniz-IPHT Jena, Germany).

The aim of the doctoral project is to elucidate the structure-function relationship of molecular sensors and their supramolecular assemblies using steady-state and time-resolved spectroscopy. The candidate will study photo-induced excited-state processes, such as energy and electron transfer, emission quenching by specific interactions in the isolated chemosensors in solution and incorporated into supramolecular vesicles. To tailor the optical properties of the sensors by molecular design, the fellow will perform systematic studies of their excited-state properties in various model environments, e.g. as a function of ionic strength, presence of biomacromolecules and pH. Thereby, specific and non-specific intermolecular interactions will be detailed, which impact the optical response of the chemosensors aside from the presence of specific ions to be sensed.

Secondments: photochemical studies of chemosensors in model membranes (2 months secondment at DCU/Ireland), investigation of upconversion processes in vesicles (2 months secondment at UL/Netherlands) and quantum chemical studies (one month secondment at the company SciClus/Germany).

Requirements: Master/Engineering degree in Physics, Chemistry or Optical Engineering, preferably with majors in Spectroscopy. Good knowledge and interest in both experimental and theoretical work. Interest in the field of photochemistry, photophysics and time-resolved optical spectroscopy is required. Knowledge in the field of (bio)chemical sensing, quantum chemistry are great assets. As an equal opportunity employer Leibniz IPHT is committed to increase the percentage of female scientists and therefore especially encourages them to apply.

Planned start date: 1st May 2019

Application deadline: 28th February 2019

Contact: Applications should be sent to Prof. Benjamin Dietzek at

For more information and how to apply please click here.