Technology in Society, for Society

New Research Results

Thermoelectric module 05/20/2016

Development of an 11 % Conversion Efficiency Thermoelectric Module
–Achieved with thermoelectric materials having controlled nano-sized structures, a big step toward the realization of power generation using waste heat –

AIST has developed a thermoelectric module with conversion efficiency of 11%. Until now, it has been difficult to exceed a thermoelectric figure of merit ZT = 1.0 in thermoelectric materials, or 7 % conversion efficiency in thermoelectric modules. In the present research, the researchers have achieved ZT = 1.8 by forming magnesium telluride (MgTe) nanostructures in a sintered compact of lead telluride (PbTe)-based thermoelectric material. Furthermore, they have developed an electrode material that contacts relatively well electrically and thermally with the PbTe sintered compact containing the MgTe nanostructures, achieving a conversion efficiency of 11 % in the thermoelectric module.


Symbiont acquisition mechanism 10/30/2015

Elucidation of the Unique Mechanism for Symbiont Acquisition in Stink Bugs, a Group of Notorious Pest Insect
– Stink bugs screen symbiotic bacteria inside the gut –

AIST, in collaboration with Hokkaido University, the Open University of Japan, National Institute for Agro-Environmental Science, and Pusan National University, has shown that stink bugs, known as agricultural pests, select only a specific symbiotic bacterium among various bacteria ingested with food by the narrow segment developing in their gastrointestinal tract, and take the bacterium into their symbiotic organ. The present results have elucidated a unique mechanism involved in acquiring specific symbiotic bacteria, which is a characteristic shared by diverse stink bugs, and are expected to lead to the development of a new method for controlling pest insects by inhibiting the establishment of gut symbiosis.


Lyrics animations 01/25/2016

Publication of a Service That Allows Easy Production and Sharing of Videos with Lyrics Animated in Synchrony with Music- Anyone can enjoy creating lyrics animation that matches their style with “TextAlive” –

AIST has developed the lyrics animation production support service “TextAlive” (http://textalive.jp/?lang=en) which enables users to animate lyrics in time with music, using song and lyrics contents published on the web. By choosing a song and specifying the video’s style, users can quickly produce lyrics animations with various effects. In addition, users can choose “templates” of visual effects for each word or character with an intuitive interface. Furthermore, users can program templates and their parameter tuning interfaces, then share the templates with other users on TextAlive. Using TextAlive, thus, allows people to demonstrate their creativity and enjoy lyrics animation production without an enormous effort.


CNT mass production 05/24/2015

World’s First Super-Growth Carbon Nanotube Mass Production Plant Opens
– Zeon Corporation begins mass production –

Based on the achievements of a NEDO project, Zeon Corporation (ZEON) has completed and begun operation of the world’s first mass production plant for carbon nanotubes (CNTs) using the Super-growth (SG) method developed by the National Institute of Advanced Industrial Science and Technology (AIST). The SG method enables high speed, large quantity synthesis, and CNTs made with the SG method have high aspect ratio, high purity, and large surface area compared with conventional CNTs. They bear high expectations for application. Increasing demand is expected, as they can be applied to innovative materials and devices. ZEON began mass production in November, 2015.


Printed wiring 04/20/2016

Development of a New Principle Printing Technique That Allows Easy, High-speed, and Large-area Manufacturing of Ultrafine Electronic Circuits
– The new technology will accelerate conversion of our entire life scene environed by IoT and touch sensors –

AIST has developed an epoch-making new printing technology for metal wiring called "SuPR-NaP (Surface Photo-Reactive Nanometal Printing) technique", in collaboration with the University of Tokyo, Yamagata University, and Tanaka Kikinzoku Kogyo K.K. The developed technique utilizes selective chemisorption phenomenon of silver nanoparticles, included in silver nanometal ink, on a surface activated by ultraviolet irradiation, which is followed by the self-fusion reaction between nanoparticles to afford low-resistance silver wiring. Ultrafine electronic circuits can be produced over a large-area substrate with minimum linewidth of 0.8 μm and the circuits strongly adhere to the plastic substrates. A flexible touch-screen sensor produced by this technology is now planned to be in practical use.


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.


Standard LED 04/14/2016

First Development of the Standard LED Covering the Full Visible Light - Toward evaluating next-generation lighting with higher accuracy -

AIST and Nichia Corporation have developed a standard LED having sufficient light intensity over the full visible light by introducing multiple LED dies with different central wavelengths in combination with multiple fluorescent substances. Solid-state lighting (SSL), such as LED and OLED lighting, is becoming more common as the next generation lighting. To evaluate SSL, accurate spectral measurement is indispensable. However, there has not been any standard light source covering the full visible light that suitable for measurement of SSL. By using the developed standard LED, LED manufacturers and developers will be able to evaluate SSL more accurately, which is expected to help accelerate product development and enhance performance.


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