Summary:
- This article discusses a new type of solar cell that can generate electricity from both sunlight and heat. This technology is called a "thermophotovoltaic" solar cell.
- The new solar cell is made of a material called gallium arsenide and can convert both light and heat into electricity, making it more efficient than traditional solar cells.
- This technology could be used to create more powerful and efficient solar panels that can generate electricity even on cloudy days or at night when the sun is not shining.