화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.27, No.1, 68-73, February, 2016
DOI10.14478/ace.2015.1126  Export Citation
1-Decanoic Acid와 Tri-n-octylphosphine을 이용하여 화학적 환원법으로 제조된 은 나노입자의 특성 및 전기적 전도체 적용
Preparation of Silver Nanoparticles by Chemical Reduction-Protection Method Using 1-Decanoic Acid and Tri-n-octylphosphine, and their Application in Electrically Conductive Silver Nanopaste
심상보, 배동식, 한종대1, †
  • 창원대학교 메카트로닉스대학 신소재공학부
  • 1창원대학교 공과대학 화공시스템공학과
Sang-Bo Sim, Dong-Sik Bae, and Jong-Dae Han1, †
  • Department of Ceramic Science and Engineering, Changwon National University, 20 Changwondae-ro, Uichang-gu, Changwon-si, Gyeongnam 51140, Korea
  • 1Department of Chemical Engineering, Changwon National University, 20 Changwondae-ro, Uichang-gu, Changwon-si, Gyeongnam 51140, Korea
E-mail:
초록
1-decanoic acid와 tri-n-octylphosphine을 분산 안정제로서 사용하고, NaBH4를 환원제로 사용하여 화학적 환원법으로 AgNO3 수용액으로부터 페이스트용 은 나노입자를 제조하였다. 은 나노입자의 생성, 은 나노입자의 형상 및 크기를 XRD, UV-vis, TEM 및 SEM으로 조사하였다. 합성된 은 나노입자로 페이스트를 제조하여 점도를 측정하였으며, PET 막에 코팅하여 제조된 은 박막의 표면저항을 조사하였다. NaBH4/AgNO3의 몰비는 1 : 5가 최적으로 나타났고, 최적의 몰비에서 10-200 nm의 잘 분산된 구형에 가까운 은 나노입자를 얻을 수 있었다. 최적의 조건에서 얻은 은 나노입자로 PET 막에 코팅하여 제조한 은 박막의 표면저항은 41 μΩ/cm2의 낮은 값을 나타내었다.
Silver nanoparticles were prepared by chemical reduction-protection method using 1-decanoic acid and tri-n-octylphosphine as surfactants, and using NaBH4 as a reducing agent. The silver nanoparticles were also studied for their formation, structure, morphology and size using UV-Visible spectroscopy, XRD, TEM and SEM. Further the viscosity of the silver paste and the surface resistance of the silver metal film produced by screen coating onto a PET film were investigated. Well dispersed and quasispherical silver nanoparticles with the size of 10-200 nm were obtained under the optimal molar ratio of NaBH4/AgNO3 = 1 : 5. The surface resistance of silver metal film coated on the PET film made with the silver nanoparticles under the optimal molar ratio showed a minal value of 41 μΩ/cm2.
Keywords:silver nanoparticle;1-decanoic acid;tri-n-octylphosphine;silver nanopaste
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