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세미나

2023. 03. 08

Dynamic assembly of conducting nanomaterials in polymer

Dynamic assembly of conducting nanomaterials in polymer   Jiheong Kang (강지형 교수)   1 Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea *E-mail : jiheongkang@kaist.ac.kr   In this presentation, I will first show my approaches to designing mechanically tough yet dynamic polymer networks...

2023. 03. 10

Geometrically Designed 3D Nanostructure for High Performance MEMS Devices

Geometrically Designed 3D Nanostructure for High Performance MEMS Devices Min-Ho Seo School of Biomedical Convergence Engineering, Pusan National University, Republic of Korea Recently, MEMS (micro-electromechanical systems), appropriate to demonstrate high performance sensors and actuators, has gain great interests in academia and industry, because it can be a key technology...

2023. 07. 09

Quantum dots for mechanoluminescent and optoelectronic applications

Quantum Dots for Mechanoluminescent and Optoelectronic Applications   Hyosung Choi   Mechanoluminescence (ML), a novel process that converts mechanical momentum to light emission, has shown potential for sustainable future technologies. However, the lights emitted from classical ML materials have shown broad emission spectra and a limitation in the choice of colors so far, constraining the full-color implementation of ML. Herein, a quantum dot (QD)-in-mechanoluminescent matrix (QMM) architecture is introduced by simply incorporating QDs with the classical ML-active matrices, designed to utilize the sharp emission spectra of the QDs. The QMMs demonstrate dis-tinctive green and red lights identical to the emissions from the QDs through mechanical stimuli, achieving the purest ML reported to date. Furthermore, the deployments of the QDs allow the full-color implementation of ML covering a wide color gamut, as well as the demonstration of the purest white reported to date. Systematic investigations reveal that the ML operation in the QMM is governed according to the ML-stimulated photoluminescence (PL) mechanism, preventing energy or charge transfer processes. Moreover, the QMMs exhibit excellent stabilities upon environmental stresses and the patterned system is readily prepared, guaranteeing both robustness and easy processability of the system. This simple QMM strategy suggests practical insights for the development of powerless ML display and lighting systems.  ...

2023. 02. 28

2023학년도 1학기 원자력공학과 세미나 전체 일정

2023학년도 1학기 원자력공학과 세미나 전체 일정을 아래에서 확인해 주시기 바랍니다. 1.장소: 110동 N101호 2.비고 가. 수강생의 경우, 총 12회 중 4회 결석부터 “U(Unsatisfactory)” 학점 부여 예정 나. 문의: 공과대학 교학팀 임채정 (052-217-1804 / imchae@unist.ac.kr / 108동 2층 U203-2호) ...