Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Chunhum Cho"'
Publikováno v:
AIP Advances, Vol 8, Iss 10, Pp 105326-105326-6 (2018)
Persistent PMMA residue formed during a graphene transfer has been a culprit in the optimization of graphene device performance. We demonstrated a facile process to remove the PMMA residue using pulsed KrF laser annealing system at H2/Ar ambient. 10m
Externí odkaz:
https://doaj.org/article/5e6dd3d086354739b45741d5d1bb5009
Autor:
Hyeon Jun Hwang, Sang Kyung Lee, Tae Jin Yoo, Moon-Ho Ham, Chang Goo Kang, Chunhum Cho, Byoung Hun Lee, Sunwoo Heo
Publikováno v:
Carbon. 123:307-310
A graphitic capping layer was successfully formed on top of Cu interconnects at room temperature, using a pulsed KrF laser. The change in temperature of the Cu line was maintained below 380 °C during laser irradiation with a fluence of 312.5 mJ/cm2.
Publikováno v:
physica status solidi (RRL) - Rapid Research Letters. 10:634-638
Two-dimensional transition metal dichalcogenides (TMDCs) are potential candidate materials for future thin-film field effect transistors (FETs). However, many aspects of this device must be optimized for practical applications. In addition, low-frequ
Autor:
Sangchul Lee, Chunhum Cho, Ukjin Jung, Byoung Hun Lee, Sang Kyung Lee, Chang Goo Kang, Young Gon Lee
Publikováno v:
Carbon. 93:286-294
The importance of proper graphene transfer process cannot be emphasized more because it is so closely related to the performance and stability of graphene devices. In this work, a new transfer method utilizing a voluntary bonding of a graphene film t
Autor:
Won Beom Yoo, Byoung Hun Lee, Kyoung Eun Chang, Jin Ho Yang, Soyoung Kim, Chunhum Cho, Chang Hoo Shim, Hyeon Jun Hwang, Sang Kyung Lee, Yongsu Lee
Publikováno v:
Nanoscale. 9(7)
We have successfully demonstrated a graphene–ZnO:N Schottky barristor. The barrier height between graphene and ZnO:N could be modulated by a buried gate electrode in the range of 0.5–0.73 eV, and an on–off ratio of up to 107 was achieved. By us
Autor:
Jinwoo Noh, Sang Kyung Lee, Chunhum Cho, Yun Ji Kim, Soyoung Kim, Ukjin Jung, Chang Hoo Shim, Kyoung Eun Chang, Byoung Hun Lee
Publikováno v:
SCIENTIFIC REPORTS(6)
Scientific Reports
Scientific Reports
Strong demand for power reduction in state-of-the-art semiconductor devices calls for novel devices and architectures. Since ternary logic architecture can perform the same function as binary logic architecture with a much lower device density and hi
Autor:
Tae Jin Yoo, Chunhum Cho, Sunwoo Heo, Woojin Park, Yun Ji Kim, Byoung Hun Lee, Hyeon Jun Hwang, Sang Kyung Lee
Publikováno v:
Semiconductor Science and Technology. 34:055010
Graphene field effect transistors (GFETs) with top-gate and back-gate structures have been extensively used without much consideration for compatibility with graphene. A comparative study of the electrical characteristics of buried-gate GFETs and top
Publikováno v:
Carbon. 60:453-460
Unstable characteristics of graphene field effect transistors (FETs) have generated concerns about the feasibility of graphene electronic devices. Two dominant mechanisms of instability, charge trapping and interfacial redox reaction, and their quant
Autor:
Seonghyun Kim, Jiyong Woo, Wootae Lee, Chunhum Cho, Jungho Shin, Sangsu Park, Hyunsang Hwang, Daeseok Lee, Jubong Park, Godeuni Choi, Byoung Hun Lee
Publikováno v:
Microelectronic Engineering. 107:33-36
We fabricated a nanothin-NbO"2-layer-based Pt/NbO"2/Pt stack and investigated its threshold-switching characteristics, which can be attributed to metal-insulator-transition, at the nanoscale. The Pt/NbO"2/Pt device exhibited a high degree of stabilit
Autor:
Byoung Hun Lee, Chang Goo Kang, Young Gon Lee, Hyeon Jun Hwang, Sang Kyung Lee, Chunhum Cho, Sung Kwan Lim, Eunji Park
Publikováno v:
Carbon. 53:182-187
The origin of the device instability of chemical vapor deposited graphene metal oxide semiconductor field effect transistor has been investigated while varying the characterization time scale from milliseconds to a few tens of seconds. When oxygen di