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Seminar

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Date 20181127

MSE Regular Seminar



■ Title :  Nanoengineering of Functional Nanomaterials

           

■ Speaker :  Prof. Seong-Jun Jeong (Soongsil Univ.)  

 

■ Date and Time :  11/27 (Tue) 16:00


■ Venue :  Applied Engineering Building (W1) 1st floor, Multimedia Lecture Room

 

 Host :  Prof. Sang-Ouk Kim  

 

 Abstract : 

In this talk, I will introduce the recent progress in the development of the directed self-assembly (DSA) process for practical utilization in semiconductor applications [1]. Furthermore, I will present a novel method for fabrication large-area field effect transistors (FETs) based on densely packed multi-channel graphene nanoribbon (GNR) arrays using advanced DSA nanolithography. The design of our strategy focused on efficient integration of the FET channel and fab-compatible processes such as thermal annealing and chemical vapor deposition [2]. Finally, I’ll introduce a reliable and robust gate dielectric material with tunable dielectric constants based on a mesostructured HfxAlyO2 film. The ultrathin mesostructured HfxAlyO2 film is deposited on graphene via a physisorbed-precursor-assisted atomic layer deposition process and consists of an intermediate state with small crystallized parts in an amorphous matrix. Crystal phased engineering using Al dopant is employed to achieve HfO2 phase transitions, which produce the crystallized part of the mesostructured HfxAlyO2 film. The effects of various Al doping concentrations are examined, and an enhanced dielectric constant of ~25 is obtained [3].

 Reference

[1] Jeong et al. Materials Today 16(12), 468–476, 2014

[2] Jeong et al. Nano Letters 16 (9), pp 5378–5385, 2016

[3] Jeong et al. ACS Nano 10 (7), pp 6659–6666, 2016


List of Articles
No. Category Subject Author Date Views
Notice Regular 6/4 (Tue) Prof. SangBum Kim (Dept. of MSE, SNU) ADMINI 2019.05.31 477
Notice Regular 5/28 (Tue) Prof. Seok Su Sohn (Dept. of MSE, Korea Univ.) ADMINI 2019.05.24 446
Notice Regular 5/21 (Tue) Emeritus Prof. Joong Keun Park (Dept. of MSE, KAIST) ADMINI 2019.05.17 454
Notice Regular 5/17 (Tue) Prof. Su-Hyun Gong (Dept. of Physics, Korea Univ.) ADMINI 2019.05.10 950
Notice Special 5/7 (Tue) Prof. Dr. -ing. Dierk Raabe (MPIE) ADMINI 2019.04.30 763
Notice Regular 4/30 (Tue) Prof. Min Hyuk Park (School of MSE, Pusan National Univ.) ADMINI 2019.04.25 547
Notice Regular 4/23 (Tue) Prof. Seungwu Han (Dept. of MSE, SNU) ADMINI 2019.04.19 308
11 Special 11/14 (Wed) Prof. Hui-Ming Cheng (Director and Professor, Tsinghua University, IMR CAS) ADMINI 2018.11.13 628
10 Regular 11/20 (Tue) Prof. Youn Soo Kim (Department of MSE, POSTECH) ADMINI 2018.11.19 963
» Regular 11/27 (Tue) Prof. Seong-Jun Jeong (Soongsil Univ.) ADMINI 2018.11.26 873
8 Regular 12/4 (Tue) Prof. Doo Seok Jeong (Hanyang Univ., Department of MSE) ADMINI 2018.11.30 1563
7 Special 1/28 (Mon) Prof. Yongjin Lee (Shanghai Tech Univ.) ADMINI 2019.01.23 813
6 Regular 2/26 (Tue) Dr. Hye-Young Kim (Senior Venture Association) ADMINI 2019.02.22 557
5 Regular 3/12 (Tue) Prof. Chang Dong Yoo (KAIST EE) ADMINI 2019.03.12 417
4 Regular 03/19 (Tue) Dr. YangKoo Cho (Korea Research Institute of Standard and Science) ADMINI 2019.03.18 447
3 Regular 03/26 (Tue) Prof. Jae-Byum Chang (KAIST MSE) ADMINI 2019.03.22 552
2 Regular 4/2 (Tue) Prof. Li Oi Lun (Dept. of MSE, Pusan National Univ.) ADMINI 2019.03.29 281
1 Regular 4/9 (Tue) Prof. Ji Young Jo (GIST, School of MSE) ADMINI 2019.04.05 274
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