A solar panel thinner than paper, the latest in energy

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In the context of the global energy transition, China promises a new breakthrough that could transform the future of solar energy. A group of scientists from Jiangsu University of Science and Technology (JUST), in collaboration with Curtin University of Australia and the Chinese firm LONGi Green Energy Technology, have developed nothing less than a solar panel thinner than paper, flexible, and efficient.

The photovoltaic effect, discovered in 1839 by Alexandre Edmond Becquerel, marked the beginning of an energy revolution. Since then, solar technology has evolved significantly, from the first selenium photovoltaic cells to the crystalline silicon cells patented in 1946 by Russell Ohl. This progress culminated in the current design: an ultra-thin solar panel that challenges the limits of what is possible.

Thanks to this evolution, the new solar cells, described in a study published in the journal Nature, are lighter and more flexible than traditional cells. With a thickness of only 50 micrometers, less than that of an A4 paper sheet, these cells can be rolled up for easy transport and installation. Additionally, their “sandwich” design gives the middle silicon layer more than 99% of the total thickness, ensuring both robustness and efficiency.

Li Yang, a professor at JUST and leader of the research team, highlighted that these flexible solar cells achieve an energy efficiency of over 26%, surpassing conventional ones. This capability makes them an ideal option for applications such as satellites, where weight and adaptability are critical.

Solar panels. Photo: Social media.
Solar panels. Photo: Social media.

Implications and future of the solar panel thinner than paper

The development of this ultra-thin solar panel represents a crucial advance in diversifying solar energy applications. From integration into residential walls to use in space missions, the possibilities are vast.

The team is already working on the next phase: flexible and portable solar cells, capable of rolling up and expanding their reach in the global energy market. This innovative design sets a before and after in the industry, comparable to milestones like the first titanium solar panel, known for its impressive power and efficiency.

In an increasingly sustainability-focused world, this technology promises to redefine how solar energy is harnessed, consolidating its place as an essential pillar in the fight against climate change.

Flexible solar panels Flexible solar panels

What is solar energy and what are its benefits?

Solar energy is a renewable, clean, and inexhaustible energy source obtained from the sun’s radiation. It can be used to generate electricity or produce heat, and has many benefits, including:

  • Non-polluting: Solar energy does not emit greenhouse gases, toxic substances, or air pollutants.
  • Inexhaustible: The sun is the most abundant energy source on Earth and does not deplete.
  • Indigenous: Solar energy is available in most parts of the planet.
  • Reduces energy imports: Local solar energy reduces the need to import energy.
  • Generates employment: The renewable energy industry is a rapidly growing sector that creates jobs.
  • Reduces energy costs: Solar energy can reduce household energy costs.
  • Increases property value: Installing solar panels increases property value.

Solar energy can be obtained in two ways:

  • Solar thermal energy: Used to produce heat through thermal collectors.
  • Solar photovoltaic energy: Used to produce electricity through photovoltaic cells.

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