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IMAGE: Despite the recent advances in the power conversion efficiency of organic solar cells, insights into the processing-driven thermo-mechanical stability of bulk heterojunction active layers are helping to advance the field.. view more
Credit: Department of Mechanical Engineering and Mechanics/Lehigh University
Today, solar energy provides 2% of U.S. power. However, by 2050, renewables are predicted to be the most used energy source (surpassing petroleum and other liquids, natural gas, and coal) and solar will overtake wind as the leading source of renewable power. To reach that point, and to make solar power more affordable, solar technologies still require a number of breakthroughs. One is the ability to more efficiently transform photons of light from the Sun into useable energy.
RUDN University chemist with his colleagues from Portugal has developed two types of coating based on new coordination polymers with silver. Both compounds were successfully tested against four common pathogens.
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IMAGE: Senior staff scientist Musahid Ahmed (left) and postdoctoral researcher Wenchao Lu near the Advanced Light Source (ALS) at Berkeley Lab on May 21, 2021. They used a special technique, which. view more
Credit: Thor Swift/Berkeley Lab
For nearly half a century, astrophysicists and organic chemists have been on the hunt for the origins of C
6H
6, the benzene ring - an elegant, hexagonal molecule comprised of 6 carbon and 6 hydrogen atoms.
Astrophysicists say that the benzene ring could be the fundamental building block of polycylic aromatic hydrocarbons or PAHs, the most basic materials formed from the explosion of dying, carbon-rich stars. That swirling mass of matter would eventually give shape to the earliest forms of carbon - precursors to molecules some scientists say are connected to the synthesis of the earliest forms of life on Earth.
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The research team led by Prof. GUO Guangcan from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), together with Prof. Adam Gali from Wigner Research Centre for Physics, realized robust coherent control of solid-state spin qubits using anti-Strokes (AS) excitation, broadening the boundary of quantum information processing and quantum sensing. This study was published in
Nature Communications.
Solid-state color center spin qubits play an important role in quantum computing, quantum networks and high-sensitivity quantum sensing. Considered as the basis of quantum technology application, optically detected magnetic resonance (ODMR) technology offers a readout approach to detect the spin state. Conventional ODMR detection of solid-state spin states is almost all under Strokes excitation, which requires that the excitation laser has higher energy than emitted photons.