Biogas is an important energy source that plays a central role in the energy revolution. Unlike wind or solar energy, biogas can be produced around the clock.
Mobile phones, washing machines and the milk bottle in the fridge: the idea is that minicomputers connected to these will be able to process information, receive and send data. This requires electrical power.
Dr. Kathrin Maria Aziz-Lange has won approval to set up a Helmholtz Young Investigator Group (YIG) addressing the topic of solar fuels at Helmholtz-Zentrum Berlin (HZB).
Tandem solar cells work by absorbing the high energy photons (visible light) in a top cell which generates a high voltage, and the lower energy photons (Infra red) in a rear cell, which generates a lower voltage.
Components made of these kinds of compounds might therefore be employed in environments that are unsuitable for today’s organic electronics.
Nevertheless, the construction of these kinds of tandem solar cells in a monolithic stack of deposited layers has been difficult.