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New Technology Will Enable the Commercialization of Plasmon Displays
-- Enhancements in the penetration ratios of color filters are expected by applying nano-surface plasmon effects. --
-- Color filter technology will be applicable to large-area OLED and LCD. --
The fabrication technology to commercialize display color filters using plasmon effects has been discovered.
A joint research team headed by Professor Kyung Cheol Choi from the Department of Electrical Engineering of the Korea Advanced Institute for Science and Technology and Prof. Byeong-Kwon Ju from the School of Electrical Engineering of Korea University has developed the technology to design and produce a display color filter by applying nano-surface plasmon effects.
Color filters are core components used to express colors in CMOS image sensors found in LCD/OLED displays or digital cameras. The current color filters have penetration ratios of 20~30%, but the objective of the joint research team is to raise this penetration ratio by over 40% to facilitate the mass production of energy-efficient plasmonic displays.
Currently available plasmonic color filters are limited to applications on micrometer scales. However, outcomes of the newest research extend the size of the applications up to 2.5 cm by using laser interference lithography. The academic and industrial sectors agree that it is now possible to mass-produce displays using plasmonic color filters.
The researchers built a nanohole array to large scale by using laser interference lithography, a technology that forms nanostructures with laser light interferences. They also suggested a new manufacturing process that can optimize the features of color filters while compensating for defects arising from the fabrication stages.
The new manufacturing process of applying laser interference lithography is expected to overcome the shortcomings of traditional color filters by simplifying production and, enabling them to be produced at lower costs.
“There were limitations to industrial applications of plasmon effect due to production costs, time, and yields,” explained Yun Seon Do, a Ph. D. candidate in the Department of Electrical Engineering of KAIST. “The new technology can reduce fabrication time and cost to the extent that it would be advisable to replace dye-based and pigment-based color filter technology."
“This research can be applied to large-scale displays, such as TV screens, by using laser-interference lithography,” said Jung-Ho Park, a Ph. D. candidate in the School of Electrical Engineering of Korea University. “The research outcome is expected to be widely applied in advanced nano-manufacturing processes as it does not restrict the types of circuit boards."
The research outcome, led by doctoral candidates Do and Park, appeared on the front cover of the second issue of Advanced Optical Materials, a highly regarded academic journal in the field of nanotechnologies, and the team has applied for six related patents.
2013.03.13 View 9817 -
Synthesis of a New Organic Supermolecule Succeeded
From left to right: Prof.Stoddart, Prof.Goddard and Prof.Jang Wook Choi
KAIST EEWS graduate school’s research team led by Prof. Stoddart, Prof. Goddard and Prof. Jang Wook Choi has succeeded the synthesis of a new organic supermolecule that is stable in a radical condition under room temperature.
Prof. Stoddart, who mainly led this research, is the world’s great scholar on orgaic molecular structure especially on catenane with an interconnection of several ring structures. Catenane is originated from Latin “catenane” referring to “chain”. The brief structure of the synthesized catenane is as following:
Usually radicals are known to be unstable since they are electronically neutral and have very high reactivity. However, the radicals from this research showed air- and water- stability. It also showed a reversible change in oxidation number from o to +8 through chemical/electrochemical oxidation-reduction reaction. The phenomenon where paramagnetic and diamagnetic characteristics change according to the oxidation number has also been observed.
Thus, the research like this - on the molecules showing various characteristics with stable radical - is expected to give a new direction to the next-generation electromemory system, semiconductor and energy storage system research.
Meanwhile, this research, led by Prof.Stoddart team with Prof.Goddard and Prof. Jang Wook Choi’s team, is conducted under the support of Science and Technology’s World Class University project by Ministry of Education and published in ‘Science’ on 25th of Jan.
2013.02.24 View 12368 -
Online Article on President Sung-Mo 'Steve' Kang by California Council on Science and Technology (CCST)
The California Council on Science and Technology (CCST), an independent, not-for-profit organization established by the mandate of California Legislature in 1988, is designed to offer expert advice to the California state government and recommend solutions to science and technology-related policy issues.
Over the past three years, President Sung-Mo “Steve” Kang has served as a member of CCST Council, an assembly of corporate CEOs, academicians, scientists, and scholars of the highest distinction.
On February 21, 2013, CCST posted on its website the announcement of Council Member Sung-Mo “Steve” Kang as President of KAIST along with his personal comments on his move to KAIST and its presidency. For the online article, please visit: http://www.ccst.us/news/2013/0221KAIST.php
2013.02.23 View 8955
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New BioFactory Technique Developed using sRNAs
Professor Sang Yup Lee
- published on the online edition of Nature Biotechnology. “Expected as a new strategy for the bio industry that may replace the chemical industry.”-
KAIST Chemical & Biomolecular engineering department’s Professor Sang Yup Lee and his team has developed a new technology that utilizes the synthetic small regulatory RNAs (sRNAs) to implement the BioFactory in a larger scale with more effectiveness.
* BioFactory: Microbial-based production system which creates the desired compound in mass by manipulating the genes of the cell.
In order to solve the problems of modern society, such as environmental pollution caused by the exhaustion of fossil fuels and usage of petrochemical products, an eco-friendly and sustainable bio industry is on the rise. BioFactory development technology has especially attracted the attention world-wide, with its ability to produce bio-energy, pharmaceuticals, eco-friendly materials and more.
For the development of an excellent BioFactory, selection for the gene that produces the desired compounds must be accompanied by finding the microorganism with high production efficiency; however, the previous research method had a complicated and time-consuming problem of having to manipulate the genes of the microorganism one by one.
Professor Sang Yup Lee’s research team, including Dr. Dokyun Na and Dr. Seung Min Yoo, has produced the synthetic sRNAs and utilized it to overcome the technical limitations mentioned above.
In particular, unlike the existing method, this technology using synthetic sRNAs exhibits no strain specificity which can dramatically shorten the experiment that used to take months to just a few days.
The research team applied the synthetic small regulatory RNA technology to the production of the tyrosine*, which is used as the precursor of the medicinal compound, and cadaverine**, widely utilized in a variety of petrochemical products, and has succeeded developing BioFactory with the world’s highest yield rate (21.9g /L, 12.6g / L each).
*tyrosine: amino acid known to control stress and improve concentration
**cadaverine: base material used in many petrochemical products, such as polyurethane
Professor Sang Yup Lee highlighted the significance of this research: “it is expected the synthetic small regulatory RNA technology will stimulate the BioFactory development and also serve as a catalyst which can make the chemical industry, currently represented by its petroleum energy, transform into bio industry.”
The study was carried out with the support of Global Frontier Project (Intelligent Bio-Systems Design and Synthesis Research Unit (Chief Seon Chang Kim)) and the findings have been published on January 20th in the online edition of the worldwide journal Nature Biotechnology.
2013.02.21 View 12699
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Professor Hwang Kyu Young and Professor Yang Dong Yeol Receives Engineer of Korea Award
Emeritus Professor Hwang Kyu Young (Department of Computer Sciences) and Professor Yang Dong Yeol (Department of Mechanical Engineering) were named as the 2012 Engineer of Korea by the Ministry of Education, Science, and Technology and Korea Science Foundation.
The Engineer of Korea Award is awarded biannually to scientists and engineers that have contributed to the development of Korea’s science and technology and national economy.
Professor Hwang’s work with DBMS and close coupling architecture of information search and overall new theories and application technology development in the field of database system has aided the opening and expansion of IT software industry development and the advent of internet information culture era.
Professor Yang is a word renowned scholar in the field of net shape manufacturing and is considered to have opened a new page in the field of nano-molding technique.
In addition, Professor Eum Sang Il (Department of Mathematical Science) has been selected as the 2012 Young Scientist Award.
2013.01.22 View 13043
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KAIST OLEV (On-Line Electric Vehicle) to begin operation!
An On-Line Electric Vehicle (OLEV) that can charge during travel will be put into service for the first time in the world on normal roads.
From July of this year 2 OLEV buses will undergo trial operations in the city of Gumi.
The trial route spans 24km from Gumi station and the region of In-Dong and the establishment of the route is expected to be of a 4.8billion Won scale. The start of the infrastructure construction will start on February and operation will start in July.
KAIST had held sessions in October of last year to local governments and had a follow up OLEV suitability evaluation to those local governments expressing interest.
The city of Gumi was elected due to its good electrical infrastructure and an administrative willingness to match.
The OLEV developed by KAIST is an environmentally friendly vehicle that allows the transfer of electrical power using magnetic fields imbedded in the roads.
Ordinary electric vehicles require frequent visits to replenish their power which gives the OLEV a comparative advantage as it can charge while on the road. The ability to charge whilst on the road means that the OLEV requires a smaller battery than the ordinary electrical vehicle resulting in lower prices and weight.
The OLEV development commenced at KAIST in 2009 and in 2010 most of the core technologies required to realize the OLEV was developed and verified. Finally in 2012 steps were taken that will allow the commercialization of the OLEV.
And in October of last year KAIST OLEV accomplished 75% power transfer efficiency that allowed a system that can be commercialized.
The KAIST OLEV was named top 50 inventions in 2010 by Time Magazine.
2013.01.22 View 11774
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KAIST Professors win 2012 Korea Engineering Award
Distinguished Professor Hwang Gyu Young (Department of Computer Science) and Professor Yang Dong Yol (Department of Mechanical Engineering) from KAIST received the 2012 ‘Korea Engineering Award’ hosted by the Ministry of Education, Science and Technology and the Korea Research Foundation.
The ‘Korea Engineering Award’ is given biennially to researchers who have accomplished world class research and have contributed greatly to Korea’s development in the field of Science and Technology. The award started in 1994 and a total of 24 recipients were recognized in various fields such as electronics, mechanics, chemistry, construction, etc. The recipients of the award areawarded the Presidential award as well as 50million won as prize money.
Professor Hwang was recognized for his research on DBMS close-coupling architecture as well as other new data base system theories, contributing to the development of the IT software industry in Korea. Professor Yang was praised for his work in precision shape creation and manufacturing, especially for his work in the nano-stereolithography process.
In addition, Professor Oum Sang-il from the Deparment of Mathematical Science received the 2012 ‘Young Scientist Award’ hosted by the Ministry of Education, Science and Technology and the Korean Academy of Science and Technology.
The ceremony for ‘Korea Engineering Award’ and the ‘Young Scientist Award’ was held in Seoul Press Center Press Club on the 21st of December.
2012.12.26 View 14814 -
KAIST to be Nominated as the Top 100 Innovators
A total of 7 South Korean universities, research institutes, and corporates, including KAIST, POSTECH, and Korean Research Institute of Chemical Technology, have been selected as the 2012 Top 100 Global Innovative Organizations.
In particular, universities were part of the list for the first time in 2012, with two South Korean universities, KAIST and POSTECH, being the only entities representing their category.
Thomson Reuters, the world"s leading media and financial-data firm, has announced a report entitled "2012 Thomson Reuters Top 100 Global Innovative Organizations", which includes KAIST and 6 other South Korean institutes, corporates, and universities.
Thomson Reuters has been publishing an annual report since last year that selects the Top 100 Global Innovative Organizations by analyzing quantitative and qualitative data through original methods and criteria such as ▲the ratio of published patent applications to granted patents, ▲the number of innovative patents that have quadrilateral patents in their patent families, ▲the number of citations to each organizations" patents, excluding self-citations, and ▲the generation of a sizable amount of innovation.
According to the most recent report, 47 American corporates and 21 European corporates have been selected as the Top 100 Global Innovative Organizations. Japan was the leading nation in the continent of Asia with 25 listed corporates, while 7 corporates, research institutes, and universities, including KAIST, have been selected from South Korea.
Besides, POSTECH, Korea Research Institute of Science and Technology, Korea Electronics Technology Institute, LSIS, LG Electronics, and Samsung Electronics were the 6 other South Korean organizations that are included in the list.
Doo Won-soo, chief of Public Relations Department of KAIST, said "Thomson Reuter"s selection of innovative organizations demonstrates that KAIST is an organization that puts great efforts for the development of advanced technologies and innovative research," also reminding that KAIST earned the 5th position by World Intellectual Property Organization (WIPO), an agency of the United Nations, among universities worldwide with applications for international patents.
Meanwhile, Thomson Reuters is the world"s leading media and financial-data firm that offers valuable intelligent information to CEO"s and experts in the vast fields of finance, banking, legislation, taxation, accounting, intellectual properties, science, and media.
Reports from Thomson Reuters are also accounted in the assessment of Times Higher Educations (THE), the British organization for world university rankings. The head office of Thomson Reuters is currently in New York, USA, with a total of 60,000 employees working overseas.
2012.12.21 View 9973
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KAIST International Students Organize KAIST ONE Program
International Students at KAIST are running a program called “KAIST ONE” (Overseas Networking Exchange) in order to promote an active exchange between students and to present their cultures.
Originally an international cultural activity at the ICU (then the Information and Communications University) in 2007, the program changed its name to “KAIST ONE” and was continued after the merging of the university with KAIST. Students of about 40 different countries have participated to date, and each annual event attracts more than 150 students.
Over 700 international students from 70 different countries around the world spontaneously organize and manage the KAIST ONE program, which is run five times this semester, every other Thursday from 7p.m. to 9p.m. at the KAIST International Center.
The 11th of last month and the 1st of this month witnessed an enthusiastic response from about 150 participants who joined the Columbian and the Saudi Arabian students in introducing their cultures, presenting traditional cultural performances, and sharing traditional foods.
The next in line are Danish, Ugandan, and Cameroonian students who are set to have their turns on this month’s 15th, 29th, and next month’s 6th, respectively.
Also notable is the active attention and support from foreign embassies such as the participation of Tunisian, Brazilian, Pakistani, Azerbaijani, Thai, and German ambassadors in the program since last year to provide food and introductory guides to cultures.
The director of this year’s program, Karim Charfi (Tunisian, 3rd year Electrical Engineering) said, “During the selection stage of each semester, everyone competes for the chance to present their country,” and “KAIST ONE has established itself as a unique and exotic cultural event at KAIST since it networks about 40 of the relatively less known countries such as Uganda, Cameroon, Tunisia, and Chile and the people with diverse cultures.”
The supervisor of the program, Chang Dong Yoo of the Office of Special Projects and Institutional Relations said, “KAIST ONE is an opportunity for international students to acquaint people with their cultures, and it is also a site of cultural exchange and of building friendships among KAIST students and international students,” and “we plan to extend the event such that not only the KAIST members but also the local residents can join in.”
The program welcomes KAIST students as well as the general public.
2012.12.21 View 8644
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Professor Hwang Gyu Young Elected as Chairman of IEEE TCDE.
Professor Hwang Gyu Young (Department of Computer Science) was elected as the Chairman of IEEE (Institute of Electrical and Electronics Engineers) TCDE (Technical Committee on Data Engineering).
IEEE TCDE is one of the three academic organizations (including VLDB Endowment, ACM SIGMOD) and Professor Hwang is the first to be elected as Chairman from the Asia-Pacific region.
Professor Hwang’s tenure begins on New Year’s Day for two years.
IEEE TCDE holds the world’s most prestigious academic competition IEEE ICDE and hosts the Working Group and publishes the IEEE Data Engineering Bulletin.
2012.12.21 View 10928
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Ph.D. students Hyowon Park and Won Ma receive Grand Prizes in Mathematics and Biology respectively.
Researchers in KAIST received best paper awards in two out of three fields at this year’s award ceremony for the “Second Annual Best Thesis Paper Award” held collectively by the Korea University Presidents’ Federation (with Chairman DaeSoon Lee) and the Korean Academy of Science and Technology (with Director GilSang Jung).
Two researchers from KAIST, Hyowon Park (Department of Mathematics) and Won Ma (Department of Biology) received best paper awards.
This prize, given by the both the Korea University Presidents’ Federation and the Korean Academy of Science and Technology since last year, is awarded to researchers and assistant professors who write the most outstanding thesis papers in the field of basic sciences.
Park, who received the best paper award this year, did research on graph braid groups. He was supervised by Professor Kihyung Ko, who received the best supervisor reward.
Ma, who received the best paper award in the field of biological science, researched about the Attention Deficit/Hyperactivity Disorder due to deficiency of the GIT1 synapse protein. His supervising professor also received the supervisor award.
The award ceremony was held in the auditorium of the S-OIL headquarters in Seoul on November 30.
Meanwhile, NASA researcher Jaehwa Lee received the best paper award in the field of earth science, and his supervising professor, Professor Jun Kim from Yonsei University who studies atmospheric science, received the best supervisor award.
2012.12.21 View 11927
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KAIST shocks the world with its creativity
Researchers at KAIST yielded great results at the world’s leading international Human Computer Interaction Society.
Professor Lee Gi Hyuk’s (Department of Computer Sciences) and Professor Bae Seok Hyung’ (Department of Industrial Design) respective teams received awards in two criteria in student innovation contest and was the only domestic university that presented their thesis at the ACM Symposium on User Interface Software.
The ACM UIST holds a student innovation contest prior to its opening. This year’s topic was the pressure sensing multi touch pad of Synaptics and involved 27 prestigious universities including MIT and CMU.
The KAIST team (Ki Son Joon Ph.D. candidate, Son Jeong Min M.A. candidate of Department of Computer Sciences and Woo Soo Jin M.A. candidate of Department of Industrial Design) designed a system that allows modulated control by attaching a simple structure to the pressure sensing multi touch pad.
The second KAIST team (Huh Seong Guk Ph.D. candidate, Han Jae Hyun Ph.D. candidate, Koo Ji Sung Ph.D. candidate at the Department of Computer Sciences, and Choi Ha Yan M.A. candidate at Department of Industrial Design) designed a system that utilizes a highly elastic fiber to allow the sensing of lateral forces. They also created a slingshot game application which was the second most popular system.
In the thesis session Professor Bae’s team (Lee DaWhee Ph.D. candidate, Son Kyung Hee Ph.D. candidate, Lee Joon Hyup M.A. candidate at Department of Industrial Design) presented a thesis that dealt with the technology that innovated the table pen for displays.
The new ‘phantom pen’ solved the issue arising from the hiding effect of the pen’s contact point and the display error due to the thickness of the display. In addition the ‘phantom pen’ has the ability to show the same effects as crayons or markers in a digital environment.
2012.11.29 View 12279