When it comes to solar panels, everyone may think of hard boards that work in sunlight. By replacing with new materials and innovative technologies, solar panels can also change their appearance and can be transformed into “solar energy†when used in vegetable greenhouses. The reporter learned from the Municipal Bureau of Science and Technology that a “national cooperation project†of the China University of Science and Technology has developed graphene-based solar cells, which are low in cost and environmentally friendly and can drive the development of the photovoltaic industry.
Soft materials for solar cells
“Our technology features two main aspects: the development of graphene-based solar cells.†Prof. Dong Dong, the project leader, told reporters that the newly-developed solar cell has a soft characteristic and costs less than the original crystalline silicon material. Can be made of soft material, and more environmentally friendly.
He said that currently mainstream solar cells in the market use crystalline silicon as the main source, and their photoelectric conversion efficiency is high, but their power generation cost is far higher than the cost of coal and electricity, which has become the biggest obstacle to the full use of this renewable energy source. A variety of flexible devices and functional composite materials can be prepared by graphene, which have broad application prospects in the fields of energy, environment, materials, electronic information, and biomedicine. "Developing solar cells with graphene is a trend, which is also currently The latest material for solar cell production."
Change the appearance of traditional solar cells
The reporter learned that the technical difficulties in preparing solar cells by overcoming graphene materials can change the appearance of traditional solar cells. “Traditional solar street lights have a solar panel on the bulb. With the new material, the solar panel can be bent, and the bulb cover can be directly made through the process improvement. It can also be designed into a variety of styles and increase the appearance. "Professor." Professor Dong said that in photovoltaic agriculture can also show their talents, the establishment of photovoltaic greenhouses can provide vegetables and flowers, seedlings, livestock and other planting and breeding sites to provide heat and electricity, while using thermal energy while generating electricity, "use our The new material can be made into a soft solar panel that can be laid on a vegetable greenhouse with a "solar quilt" and a new function in the greenhouse." Speaking of solar cells made of graphene materials For a wide range of uses, Prof. Dong speculated about the future development.
Professor Dong and his team will jointly develop solar cells based on graphene materials with researchers from Missouri State University and Lawrence Berkeley National Laboratory. This is also one of the 11 national cooperative special projects approved by Qingdao City in 2014. "The development of low-cost, environmentally friendly, resource-rich next-generation solar cells is currently the core issue in the development of the photovoltaic industry." Professor Dong said that their new technologies have broad market prospects and can bring innovation in solar cell applications.
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