PMID- 34337251
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240403
IS  - 2470-1343 (Electronic)
IS  - 2470-1343 (Linking)
VI  - 6
IP  - 29
DP  - 2021 Jul 27
TI  - Deep-Sintered Copper Tracks for Thermal Oxidation Resistance Using Large Pulsed 
      Electron Beam.
PG  - 19134-19143
LID - 10.1021/acsomega.1c02475 [doi]
AB  - Thermal oxidation resistance is an important property in printed electronics for 
      sustaining electrical conductivity for long time and/or under harsh environments 
      such as high temperature. This study reports the fabrication of copper 
      nanoparticles (CuNPs)-based conductive tracks using large pulsed electron beam 
      (LPEB) by irradiation on CuNPs to be sintered. With an acceleration voltage of 11 
      kV, the LPEB irradiation induced deep-sintering of CuNPs so that the sintered 
      CuNPs exhibited bulk-like electrical conductivity. Consequently, the sintered Cu 
      tracks maintained high electrical conductivity at 220  degrees C without using any 
      thermal oxidation protection additive, such as silver, carbon nanotube, and 
      graphene. In contrast, the films irradiated with an acceleration voltage of 8 kV 
      and irradiated by intense pulsed light (IPL) showed fast oxidation 
      characteristics and a corresponding reduction of electrical conductivities under 
      high temperatures owing to a thin sintered layer. The performance of highly 
      thermal oxidation-resistant Cu films sintered by LPEB irradiations was 
      demonstrated through the device performance of a Joule heater.
CI  - (c) 2021 The Authors. Published by American Chemical Society.
FAU - Hwang, Yunjae
AU  - Hwang Y
AD  - School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science 
      and Technology (UNIST), UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan 44919, 
      Republic of Korea.
FAU - Kim, Jisoo
AU  - Kim J
AUID- ORCID: 0000-0001-9540-2800
AD  - Department of Advanced Science and Technology Convergence, Kyungpook National 
      University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do 37224, 
      Republic of Korea.
AD  - Department of Precision Mechanical Engineering, Kyungpook National University 
      (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do 37224, Republic of 
      Korea.
FAU - Yim, Changyong
AU  - Yim C
AUID- ORCID: 0000-0001-5987-9580
AD  - Department of Advanced Science and Technology Convergence, Kyungpook National 
      University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do 37224, 
      Republic of Korea.
AD  - School of Nano & Materials Science and Engineering, Kyungpook National University 
      (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do 37224, Republic of 
      Korea.
FAU - Park, Hyung Wook
AU  - Park HW
AUID- ORCID: 0000-0002-7751-1402
AD  - School of Mechanical and Nuclear Engineering, Ulsan National Institute of Science 
      and Technology (UNIST), UNIST-gil 50, Eonyang-eup, Ulju-gun, Ulsan 44919, 
      Republic of Korea.
LA  - eng
PT  - Journal Article
DEP - 20210713
PL  - United States
TA  - ACS Omega
JT  - ACS omega
JID - 101691658
PMC - PMC8320104
COIS- The authors declare no competing financial interest.
EDAT- 2021/08/03 06:00
MHDA- 2021/08/03 06:01
PMCR- 2021/07/13
CRDT- 2021/08/02 06:12
PHST- 2021/05/11 00:00 [received]
PHST- 2021/07/01 00:00 [accepted]
PHST- 2021/08/02 06:12 [entrez]
PHST- 2021/08/03 06:00 [pubmed]
PHST- 2021/08/03 06:01 [medline]
PHST- 2021/07/13 00:00 [pmc-release]
AID - 10.1021/acsomega.1c02475 [doi]
PST - epublish
SO  - ACS Omega. 2021 Jul 13;6(29):19134-19143. doi: 10.1021/acsomega.1c02475. 
      eCollection 2021 Jul 27.