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 E-Mail IMAGE: This image shows the color change of the "chameleon skin " hydrogel-based chemosensor in response to biogenic volatile amine vapors, which are a well known indicator of fish and shrimp spoilage.... view more  Credit: Lu et al./Cell Reports Physical Science Scientists in China and Germany have designed an artificial color-changing material that mimics chameleon skin, with luminogens (molecules that make crystals glow) organized into different core and shell hydrogel layers instead of one uniform matrix. The findings, published May 6 in the journal Cell Reports Physic...

Home > Press > Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal (a) Schematic structure of polarized light detector. (b) Photoconductivity parallel and perpendicular to the interface. (c) Photoconductivity anisotropy versus excitation power. (d) Angle-resolved photocurrent as a function of polarization angle measured at 405 nm under zero bias. (e) Experimental polarization ratios of some reported polarized light detectors. (f) Angle-dependent photocurrent of the present device measured at different temperature. CREDIT @Science China Press Abstract: Polariza...

 E-Mail IMAGE: (a) Schematic structure of polarized light detector. (b) Photoconductivity parallel and perpendicular to the interface. (c) Photoconductivity anisotropy versus excitation power. (d) Angle-resolved photocurrent as a function of polarization angle... view more  Credit: @Science China Press Polarization-sensitive photodetectors, based on anisotropic semiconductors, have exhibited wide advantages in specialized applications, such as astronomy, remote sensing, and polarization-division multiplexing. For the active layer of polarization-sensitive photodetectors, recent rese...

 E-Mail IMAGE: Left: Frozen waterfall in a rural area west of Beijing, China (photo taken by Fei Zheng on Feb 17); Right: A snow-capped car in Austin, Texas USA (photo taken by... view more  Credit: Fei Zheng/ Zong-Liang Yang China is just one of many countries in the Northern Hemisphere having what researchers are calling an "extremely cold winter," due in part to both the tropical Pacific and the Arctic, according to an analysis of temperatures from Dec. 1, 2020, to mid-January of 2021. A country-specific case study, the investigation potentially has far-reaching implications for ...

Written by AZoOpticsJan 21 2021 Robots are extensively used to paint airplanes, make cars, and sew clothing in factories. However, the assembly of microscopic components, for example, those used for biomedical applications, is yet to be automated. Lasers could offer a solution to this problem. Scientists have now used lasers to develop miniature robots using bubbles that lift, drop, and control tiny pieces into interconnected structures. The study results have been published in the ACS Applied Materials & Interfaces journal. With the miniaturization of manufacturing, objects with a length on...