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Study Achieves Highest Opto-Electronic Spin Polarization at Room Temperature
Written by AZoOpticsApr 9 2021
The use of information technology in which the spin of electrons is used for information processing in quantum computers might be possible in the future. For a long time, this has been the aim of researchers to use spin-based quantum information technology at ambient temperature.
Experimental setup similar to the one the researchers have used. Image Credit: Thor Balkhed.
Now, scientists from Sweden, Finland and Japan have built a semiconductor component where information can be efficiently exchanged between light and electron spin at ambient temperature and above.
The fact that electrons feature a negative charge is well known, and they also exhibit another property called spin. The latter might be instrumental in the development of information technology. In simple terms, the electron can be visualized to rotate around its own axis, analogous to how the Earth rotates aro
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IMAGE: Daniel Simon, associate professor in the Laboratory of Organic Electronics, Department of Science and Technology at Linköping University. view more
Credit: Thor Balkhed
Researchers at Linköping University, Sweden, have developed a proton trap that makes organic electronic ion pumps more precise when delivering drugs. The new technique may reduce drug side effects, and in the long term, ion pumps may help patients with symptoms of neurological diseases for which effective treatments are not available. The results have been published in
Science Advances.
Approximately 6% of the world s population suffer from neurological diseases such as epilepsy, Parkinson s disease, and chronic pain. However, currently available drug delivery methods - mainly tablets and injections - place the drug in locations where it is not required. This can lead to side effects that harm the patient.
Credit: Jin Yang
Scientists in China and Sweden have determined that a pinch of capsaicin, the chemical compound that gives chili peppers their spicy sting, may be a secret ingredient for more stable and efficient perovskite solar cells. The research, published January 13 in the journal
Joule, determined that sprinkling capsaicin into the precursor of methylammonium lead triiodide (MAPbI3) perovskite during the manufacturing process led to a greater abundance of electrons (instead of empty placeholders) to conduct current at the semiconductor s surface. The addition resulted in polycrystalline MAPbI3 solar cells with the most efficient charge transport to date. In the future, green and sustainable forest-based biomaterial additive technology will be a clear trend in non-toxic lead-free perovskite materials, says Qinye Bao, a senior author of the study from East China Normal University. We hope this will eventually yield a fully green perovskite solar cell for a clean energy so