Journal
SCIENCE
Volume 352, Issue 6292, Pages 1446-1449Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaf0590
Keywords
-
Categories
Funding
- DFG [LE-747/44-1]
- European Community's Seventh Framework Programme [EP7-267995]
- Knut and Alice Wallenberg Foundation through a Wallenberg Scholar grant
- Swedish Research Council (VR) [330-2014-6433]
- European Commission, Made Sklodowska-Curie Actions [INCA 600398]
- Bundesministerium fur Bildung und Forschung [FKZ 03EK3503B]
- Dr Isolde-Dietrich-Stiftung
Ask authors/readers for more resources
A key breakthrough in modern electronics was the introduction of band structure engineering, the design of almost arbitrary electronic potential structures by alloying different semiconductors to continuously tune the band gap and band-edge energies. Implementation of this approach in organic semiconductors has been hindered by strong localization of the electronic states in these materials. We show that the influence of so far largely ignored long-range Coulomb interactions provides a workaround. Photoelectron spectroscopy confirms that the ionization energies of crystalline organic semiconductors can be continuously tuned over a wide range by blending them with their halogenated derivatives. Correspondingly, the photovoltaic gap and open-circuit voltage of organic solar cells can be continuously tuned by the blending ratio of these donors.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available