Isn't it convenient when office building windows adaptively darken according to the intensity of sunlight- Or when standard glasses turn into sunglasses under the sun and switch back as you enter a building- Such feats are possible thanks to photochromic materials, whose optical (and other) properties change radically when irradiated by visible or ultraviolet light.
A long-cherished dream of materials researchers is a solar cell that converts sunlight into electrical energy as efficiently as silicon, but that can be easily and inexpensively fabricated from abundant materials. Scientists at the Helmholtz-Zentrum Berlin have now come a step closer to achieving this.
Multiple-cation and mixed halide (FAMACs) perovskites developed by adding Br/MA/Cs ions into the FAPbI3 perovskites are known to be the ideal compositions for use in high-efficiency photovoltaic and photoelectronic devices thanks to their reduced hysteresis, suppressed ion migration, and improved stability.
Studies on foldable electronics have gained huge momentum with the recent development of foldable mobile phone screens. A specifically valuable application of foldable technology is in solar panels.
Scientists at Osaka University have created lithium-ion battery (LIB) electrodes with silicon (Si) swarf or graphite sheet composites. This helped achieve a reduction in cost, environmental friendliness, and high performance.
For more than a century, optical coatings have been used to better reflect certain wavelengths of light from lenses and other devices or, conversely, to better transmit certain wavelengths through them. For example, the coatings on tinted eyeglasses reflect, or "block out," harmful blue light and ultraviolet rays.
Carbon dioxide (CO2) is one of the major greenhouse gases causing global warming. If carbon dioxide could be converted into energy, it would be killing two birds with one stone in addressing the environmental issues.
A group of scientists from the Okinawa Institute of Science and Technology Graduate University (OIST) has used a new fabrication method to create perovskite solar modules that have enhanced efficiency and stability with fewer defects.
Perovskite/silicon tandem solar cells carry a huge potential to transform the global solar industry. This potential originates from a significant improvement in the performance of silicon solar cells on the same footprint and thus enabling a cost reduction and lower the carbon footprint.
Organic photodetectors (OPDs) have a huge potential for applications in low-cost imaging, health monitoring and near infrared sensing. Yet, before industrially realizing these applications, the performance of these devices still needs to be improved.
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