Identification of promising HTMs with strong light absorption in the visible to NIR region exceeding 900 nm to use as dual absorbers (Public Report)

In this part of the project we plan to design and synthesize HTMs with suitable energy levels, strong light absorption in the low energy region of the solar spectrum. Because of the low absorption of perovskite beyond 700 nm, the new HTMs absorbing beyond 700 nm can contribute to the light harvesting properties and thus perform as dual light absorbing system with the perovskite. We will also evaluate of the influence of the donor and acceptor units on optoelectronic properties, solid state packing and charge carrier mobility. The new HTMs will also be studied in combination with various inorganic HTMs in order to investigate the film forming and charge transport properties.