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Technology in Society, for Society

New Research Results

Department of Energy and Environment 04/01/2015

Promoting green innovation

To promote green innovation, AIST is developing technologies for increased use of alternative energy technologies, such as renewable energy sources that reduce greenhouse gas emissions (energy creation), high-density storage of energy (energy storage), highly efficient conversion and use of energy (energy saving), effective utilization of energy resources, and evaluation and reduction of environmental risks.

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Uncovering the Mechanism of Photoluminescence Stabilization in Semiconductor Nanoparticles 06/19/2015

Uncovering the Mechanism of Photoluminescence Stabilization in Semiconductor Nanoparticles ― Aiming at establishment of technologies based on observation of individual bio-molecules for developing medicines and diagnosing diseases―

AIST has discovered the mechanism of photoluminescence (PL) loss from semiconductor nanoparticles called quantum dots (QDs) and proposed an effective method for stabilization of PL, in collaboration with Kagawa University and Nagaoka University of Technology. The researchers tethered QDs sparsely on the surface of a cover glass and observed the PL from single QDs in an optical microscope. They discovered that the release of an electron (Auger ionization) from photo-excited QDs prevents oxidation of QDs by singlet oxygen (1O2), leading to PL stabilization. In addition, they found that scavengers of 1O2 stabilize the PL of QDs in the neutral state without Auger ionization.

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Department of Information Technology and Human Factors 04/01/2015

From IT infrastructure to application technology: make, connect, use

The rapid growth of devices (smartphone, tablets, robots, wearables, etc.) and the Internet has increased the amount of information that is being produced and accessed by society. In order to better utilize the data produced from millions of devices and systems, we are conducting research and development in a wide range of fields at the interface between information technologies and human factors. Our mission is to engage and enrich the public through the research and development of intelligent systems combining computational and physical capabilities for human use. A key component of our mission is making new discoveries in the hardware and software that interacts with physical devices to sense and change the state of the real world. Our discoveries will lead to industry innovations and contribute to the advancement of society by facilitating the interaction of humans with cyber-physical systems.

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Department of Materials and Chemistry 04/01/2015

Contributing to industrial competitiveness enhancement by synergistic interaction between materials and chemical technologies

We are developing technologies to enhance added value of functional chemicals, and to realize practical use of new materials, with strengthening value chains of materials through synergistic interaction between materials and chemical technologies in mind. Thus, we are aiming to contribute to the primary materials and chemical industries.

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Crystal movement by photoirradiation 08/21/2015

Discovery of the Phenomenon of Crystal Movement by Photoirradiation
- Utilization of liquefaction and crystallization induced by light –

AIST has discovered a phenomenon in which a crystal of organic substances having the simple structure of azobenzene moves on a glass plate. The crystal moves when it is simultaneously irradiated from different directions with ultraviolet light which liquefies the crystal and visible light which solidifies the crystal. Because the crystal moves away from the ultraviolet light source, it is possible to control the direction of crystal movement. In addition, the crystal can rise in the vertical direction when placed on a vertically positioned glass plate. In the future, applications to valves and the transport of substances and objects on a microscopic level are anticipated.

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Geological Survey of Japan 04/01/2015

Understanding and living with the Earth

Geological information is essential for a country like Japan, located at a tectonically active area, to ensure a safe and secure society. The Geological Survey of Japan gathers, compiles, and provides geological information and promotes its wider use. We also develop technologies to overcome various difficulties related to global environment protection, exploration of minerals and energy resources, and natural disaster mitigation, and coordinate international cooperation as a national representative.

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National Metrology Institute of Japan 04/01/2015

Development, dissemination, and use promotion of measurement standards and development of standards-related measurement technologies

As the national metrology institute (NMI), we are focusing on the development and dissemination of measurement standards, promotion of measurement standards utilization, development of measurement technologies related to measurement standards, legal metrology work and training of experts. Our activity covers engineering, physical, material, and chemical measurement standards. It also covers development of measurement and analytical instrumentation. We also coordinate international activities on metrology standards as a national representative.

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