The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Device optimization of a three-layer and fullerene-free organic photovoltaic device stack allowed us to achieve over 8% power conversion efficiency (PCE). Complementary small molecule absorbers enable a broad absorption up to 800 nm leading to short-circuit current density of 14.5 mA/cm2. Simultaneously an elevated open-circuit voltage of 1 V can be achieved as the third absorbers' contribution is...