신소재공학과

Seminar

Date 20170228 

학과 정기세미나 안내



■ Title Carbon and Organic-based Materials for Thin-film Transistors and Pressure Sensors

                      
■ Speaker : 스티브 박 교수 (KAIST 신소재공학과)

■ Date and time : 2월 28일 (화) 16:00

■ Venue : 응용공학동 (W1) 1층 영상강의실

  

 Abstract :

In this talk, I will discuss solution-based thin-film formation of single-walled carbon nanotubes (SWNTs) and organic materials to fabricate low-cost electronics and sensors with enhanced performance. To process thin-film of SWNTs as channel material in transistors, two main challenges existelimination of metallic SWNTs and dense alignment of SWNTs. To address the former, I have developed a polymer-based sorting technique that was shown to selectively disperse semiconducting SWNTs with a narrow diameter range. To address the latter, I have utilized solution shearing to densely align SWNTs over a large area in a facile manner. Also using SWNTs as electrodes, stretchable capacitive tactile sensor was fabricated with high sensitivity of 0.7 1/kPa and with the ability to differentiate between different tactile inputs. To print thin films of small organic molecules, a technique known as CONNECT was developed where organic crystals were aligned, self-patterned, and self-registered within the transistor channel over a large area. Transistor density as high as 840 dpi with low relative variance of 26% were demonstrated, along with a 2-bit half adder circuit. In summary, the performance of SWNTs and organic thin films have been enhanced through novel solution processing techniques, through which transistors and various sensors were fabricated.

No. Subject Author Date Views
Notice 5/23 (Tue) Prof. Don Hyeong Ha (Choongang university) ADMINI 2017.05.19 176
217 2015 The Fall Semester Seminar file TeamLeader 2015.03.04 18252
216 2/25 (월) 홍승범박사 (Argonne National Laboratory) Administrator 2013.02.06 17230
215 3/20 (화) 정우철 박사 (California Institute of Technology) file Administrator 2012.03.15 14613
214 [공지] 2011년 가을학기 신소재공학과 정기세미나 안내 file Administrator 2011.11.04 14323
213 [공지] 2012년 봄학기 신소재공학과 정기세미나 안내 file Administrator 2012.02.13 13735
212 5/15 (화) 조문호 교수 (연세대학교 신소재공학과) Administrator 2012.05.09 13266
211 [WCU-FS 사업단 세미나] 6/7 (화) 조정대 박사 (한국기계연구원) Administrator 2011.11.04 12968
210 9/6 (화) 남윤성 교수 (KAIST 신소재공학과) file Administrator 2011.11.04 12632
209 10/19 (수) Dr. Miso Kim (MIT) Administrator 2011.11.04 11205
208 10/16 (화) 유현용 교수 (고려대학교 전기전자전파공학부) Administrator 2012.10.12 10880
207 3/19 (화) 신병하 박사 (IBM T.J. Watson Research Center) Administrator 2013.03.19 10802
206 10/18 (화) 이윤정 교수 (한양대학교 WCU, 에너지공학과) file Administrator 2011.11.04 10769
205 10/11 (화) 조성준 교수 (전남대학교 응용화학공학부 file Administrator 2011.11.04 10633
204 11/15 (화) 김진웅 교수 (한양대학교 응용화학과) file Administrator 2011.12.05 10620
203 11/1 (화) 윤명한 교수 (광주과학기술원 신소재공학부) file Administrator 2011.11.04 10592
202 3/5 (화) 정우철 교수 (KAIST 신소재공학과) Administrator 2013.03.05 10572
201 12/13 (화) Prof. Aloysius Soon (연세대학교 신소재공학과) file Administrator 2011.12.07 10214
200 2/14 (화) 신종화 교수 (KAIST 신소재공학과) file Administrator 2012.02.15 10045
199 [WCU-FS 사업단 세미나] 6/29 (수) 16:00 Prof. Digby D. Macdonald (Pennsylvania State University) Administrator 2011.11.04 9868
198 4/19 (화) 남기태 교수 (서울대학교 재료공학부) Administrator 2011.11.04 9824