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32 Current news of Osaka University

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From trash to treasure: Silicon waste finds new use in Li-ion batteries

Researchers fabricate Li-ion battery electrodes with Si swarf/graphite sheet composites, achieving high performance, reduced cost, and environmental friendliness

12-Feb-2021

Li-ion batteries (LIBs) are widely used in various mobile electronics. Concerns of global warming and climate change have recently boosted the demand for LIBs in electric vehicles and solar photovoltaic output smoothing. Si has been studied as an active material with a high theoretical capacity ...

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Integrate Micro Chips for electronic Skin

24-Jan-2020

Researchers from Dresden and Osaka present the first fully integrated flexible electronics made of magnetic sensors and organic circuits which opens the path towards the development of electronic skin. Human skin is a fascinating and multifunctional organ with unique properties originating from ...

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LED-ing the way: A clean and convenient method to oxidize plastic surfaces for industry

13-Jun-2019

Polypropylene (PP) is everywhere, being one of the most widely used plastics in human life. A versatile material, its naturally inert surface can be modified for specific applications. Researchers at Osaka University have now developed a convenient light-driven process for oxidizing PP without ...

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Good vibrations: Using piezoelectricity to ensure hydrogen sensor sensitivity

24-May-2019

A team at Osaka University has invented a new process for creating high-precision sensing devices that respond to the presence of hydrogen gas. By carefully controlling the deposition of metallic nanoparticles on a silicon surface, the researchers were able to create a sensor that can detect low ...

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Multifunctional dream ceramic matrix composites are born!

Ceramic matrix composites exhibit electrical conductivity and photocatalytic activity

07-Dec-2018

Researchers at Osaka University produced composites consisting of alumina (AI2O3) ceramics and titanium (Ti), namely AI2O3/Ti composites. They designed a percolation structure for forming a continuous conduction pathway by dispersing fine-sized Ti particles into an AI2O3 matrix, optimizing the ...

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Controlling organic semiconductor band gaps by electron-acceptor fluorination

A fluorinated electron-acceptor unit for high performance organic semiconductors

19-Oct-2018

Organic semiconductor materials have the potential to be used in innovative applications such as transparent and flexible devices, and their low cost makes their potential use particularly attractive. The properties of organic semiconductor materials can be tuned by controlling their structure at ...

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Twisting graphene into spirals

Researchers synthesize helical nanographene

04-Apr-2018

It's probably the smallest spring you've ever seen. Researchers from Kyoto University and Osaka University report for the first time in the Journal of the American Chemical Society the successful synthesis of hexa-peri-hexabenzo[7]helicene, or 'helical nanographene'. These graphene constructs ...

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Breaking the chain

Catalyzing a green future for chemistry

08-Nov-2017

The fight against climate change is a call-to-arms for industry. We currently rely on fossil fuels, a major source of the greenhouse gas CO2 , not only for energy but also to create chemicals for manufacturing. To ween our economies off this dependency, we must find a new source of "green" raw ...

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Rolling the dice on perovskite interfaces

30-Oct-2017

Perovskites are a type of mineral and class of materials, and have been attracting a great deal of attention for their potential applications to technologies such as those used in solar cells. These unique materials have well-ordered structures and show many interesting properties that could be ...

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Seeing the next dimension of computer chips

11-Oct-2017

A research collaboration between Osaka University and the Nara Institute of Science and Technology for the first time used scanning tunneling microscopy (STM) to create images of atomically flat side-surfaces of 3D silicon crystals. This work helps semiconductor manufacturers continue to innovate ...

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