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 7/13 (Fri) Prof. Dong Ryeol Whang (Johannes Kepler University Linz, Austria) ADMINI 2018.07.09 10
Notice 6/5 (Tue) Prof. Sunghwan Lee (Baylor University) ADMINI 2018.06.05 217
Notice 5/29 (Tue) Prof. Sang Ho Oh (Yonsei Univ. College of Medicine) ADMINI 2018.05.29 217
Notice 5/15 (Tue) Prof. Myung Gil Kim (Dept. of Chemistry, Chung-Ang Univ.) ADMINI 2018.05.15 437
225 9/11 (Mon) Won Joon, Cho (Lawrence Berkeley National Lab, Berkeley) ADMINI 2017.09.06 1351
224 9/13 (Wed) Dr. In Kyung Yoo (SAIT) ADMINI 2017.09.06 1574
223 8/24 (Tue) Prof. Jong Min Yuk (MSE KAIST) ADMINI 2017.08.24 1592
222 6/16 (Fri) Dr. Bok Yeop Ahn (Harvard University) ADMINI 2017.06.13 3148
221 6/12 (Mon) Prof. C. Suryanarayana (University of Central Florida) ADMINI 2017.06.05 1325
220 6/2 (fri) Robert M. Ulfig (CAMECA Instruments Inc) ADMINI 2017.06.01 1325
219 6/5 (Mon) Dr. Aron Varga/Dr. Andriy Lotnyk ADMINI 2017.05.30 1411
218 5/30 (Tue) Prof. Chang Hyeon Ko (Sookmyung Univ) ADMINI 2017.05.26 1480
217 5/23 (Tue) Prof. Don Hyeong Ha (Choongang university) ADMINI 2017.05.19 1118
216 5/16 (Tue) Prof. Eun Sun Cho (KAIST CBE) ADMINI 2017.05.10 1320
215 5/2 (Tue) Prof. Seung Woo Lee (SKKU) ADMINI 2017.04.28 1415
214 4/25 (Tue) Prof. Hyeong Sup Choi (Seoul National University of Science and Technology) ADMINI 2017.04.20 1241
213 4/11 (Tue) Prof. Kyeong Sook Choi (Eulji National University, Medical school) ADMINI 2017.04.07 1287
212 4/4 (Tue) Mrs. Eun Joo Jang (Samsung) ADMINI 2017.03.31 1457
211 3/28 (Tue) Prof. Lim Won Bin (Jeonnam National University) ADMINI 2017.03.24 1215
210 3/21 (Tue) Prof. Park Sang Duk (Seoul National University) ADMINI 2017.03.20 1167
209 3/14 (Tue) Dr. Hwa Nyun Kim (LG) ADMINI 2017.03.11 1206
208 3/7(Tue) Prof. Joong Keun Park, Prof. Jung Yong Lee (KAIST) ADMINI 2017.03.02 1200
» 02/28 (Tue) Prof. Steve Park (KAIST) ADMINI 2017.02.24 1517
206 02/20 (Mon) Special Seminar Announcement, Prof. Hwang (Seoul National University) ADMINI 2017.02.14 1406