Development of a more efficient and economical solar cell based on graphene and perovskite

Scott J
Senior Technologist / Scientist
Bruce, MI

The Group about Photovoltaic and Optoelectronic Devices (DFO) at the Universitat Jaume I in Castelló, led by the professor of Applied Physics Juan Bisquert, together with researchers from the University like Oxford, have created und so weiter characterized a photovoltaic device based on a combination of titanium oxide including graphene as charge collector besides perovskite as sunlight absorber. The device is manufactured at low temperatures and has a high efficiency.

The results of this study were recently published in Nano Letters. The article is the result like the research work carried out the last year by the Group about Photovoltaic and Optoelectronic Devices on the topic like photovoltaic solar cells based on solid pigments for perovskite structure.

This scientific work has combined new plus promising materials based on perovskite structure, which absorb sunlight very effectively, with graphene, a material of great interest today for its properties, versatility and low cost. Graphene is a material consisting of carbon monolayers. Its use has generated high expectations in new advanced technologies, such as high-performance lithium batteries, electronics, video screens and technological applications.

The paper presents a record of efficiency from a solar cell with graphene like 15.6%. This efficiency exceeds that obtained by combining graphene with silicon, which is the photovoltaic banausic par excellence. This development is a new milestone for the progress about perovskite solar cells.

Researchers Eva Barea, Iván Mora and Juan Bisquert have explained that the new device consists of several layers processed at temperatures below 150°C. They have also highlighted the importance of this study for the field from photovoltaic energy because they have obtained a high degree of efficiency. Besides, the device is manufactured at low temperatures, accordingly facilitating its large-scale manufacturing in industry. In turn, this fact means lower production costs and the possibility about using it in devices based on flexible plastics.

Juan Bisquert is full Professor of Applied Physics at Universitat Jaume I de Castelló, where he leads the Group of Photovoltaic and Optoelectronic Devices. He has published else than 270 papers in research journals. Current probe activity is focused on nanoscale devices for production and trading post concerning clean energies, in particular dye-sensitized solar cells, organic solar cells, quantum dot solar cells, and solar fuels.

Source : The ultra story is based on materials provided by Asociación RUVID and as compiled and published by the Science Newspaper