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Description
The challenge of the present world is the development in the field of energy saving and renewable energy. Therefore, it is necessary to increase the share of alternative energy sources in total world production. It can be achieved by maximizing energy yields while minimizing the cost of its obtaining. Hence, the main direction of photovoltaics evolution is implementation of advanced technologies for cheap and high-efficient solar cells and modules production. To meet these expectations the major project finding is the development of a procedure of low-resistive metal oxide semiconductors production for use in all oxide heterojunction and perovskite solar cells. The material selected for the research is very promising copper (I) oxide, which is characterized by good physicochemical parameters and can constitute a structural element of the solar cell. The project consists of two tasks. The result of the first task is the “know how” of producing the thin functional layers, based on low-resistive doped metal oxides. For this purpose the simple spray-coating method will be implemented. In the second task a complete prototype device with doped copper oxide will be produced. Two variants of solar cells are considered, heterojunction thin film solar cell where copper oxide will act as an light harvester and perovskite solar cell with Cu2O holes transporting layer.
The evolved technology will contribute to the broadening of knowledge in the field of doping of oxide semiconductors. Moreover, in the long term, it can be commercialized what will reduce the production costs of solar cells and modules. Due to this, the number of photovoltaic investments will increase what will have a positive impact on environmental protection.
Summary of project results
The project aimed to contribute to sustainable development goals and meet the growing market demand for clean energy solutions. There is a global demand for renewable energy solutions due to concerns over climate change and energy security. Developing advanced solar cell technologies could provide a competitive edge and leadership in the clean energy sector, while also expanding scientific knowledge in semiconductor physics, material science, and device engineering.
Project activities included the optimization of the spray coating method for depositing copper oxide layers. This involved developing precise precursor solutions, refining deposition parameters, and introducing critical annealing steps in inert atmospheres. The main results of the project included achieving significantly improved material properties such as a low resistivity of 1 Ωcm through innovative doping strategies and precise control over deposition conditions. Unintended results included insights into stability issues when integrating copper oxide with other materials in heterojunction and perovskite solar cells.
The project has made a difference by providing a reliable and scalable method for producing high-quality copper oxide layers. This technology offers potential cost reductions and improved performance in solar cell applications, contributing to the advancement of renewable energy technologies. These advancements pave the way for the commercialization of photovoltaic devices with enhanced performance and durability, addressing current challenges in the renewable energy sector. The importance of the project lies in its expected long-term impact on the renewable energy landscape. By optimizing copper oxide deposition methods and understanding its integration challenges, the project sets a foundation for future advancements in solar cell technology. It fosters innovation towards sustainable energy solutions, potentially accelerating the adoption of renewable energy sources worldwide.