Dr. Martijn Wienk

Biography

Martijn Wienk is an assistant professor in the Molecular Materials Nanosystems group at Eindhoven University of Technology. His research focuses on the optimization and characterization of solution-processed hybrid polymer-metal oxide solar cells. Organic solar cells offer advantages such as low cost and easy scalability for production. A critical aspect of achieving good device performance lies in the fine morphological distribution of the materials used, particularly between the electron donor and electron acceptor layers. Hybrid organic solar cells boast increased stability and better controllability of the active layer's morphology. The morphology of ZnO:polymer hybrid solar cells can be significantly influenced by selecting the hydrophilicity of the polymer employed. For instance, using the hydrophobic polymer P3HT results in a coarse distribution of the ZnO layer. Conversely, the use of polymers with functionalized ester groups enhances hydrophilicity, leading to a finer distribution of the ZnO layer. Finer morphology in thin active layers subsequently enhances device performance.

Research Interests

Experience