METAL NANOWIRE HAVING CORE-SHELL STRUCTURE

The present invention relates to a metal nanowire having a core-shell structure, the metal nanowire being conductive and transparent while having excellent oxidation stability, and being capable of maintaining excellent oxidation stability even after a secondary process using the metal nanowire of t...

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Bibliographische Detailangaben
Hauptverfasser: YUN, Kug Jin, PARK, Han-Oh, KIM, Jae-Ha, KIM, Jun Pyo
Format: Patent
Sprache:eng ; fre ; kor
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Zusammenfassung:The present invention relates to a metal nanowire having a core-shell structure, the metal nanowire being conductive and transparent while having excellent oxidation stability, and being capable of maintaining excellent oxidation stability even after a secondary process using the metal nanowire of the present invention. Specifically, the metal nanowire having a core-shell structure, according to the present invention, comprises a core containing copper, and a shell containing silver on the core, wherein the ratio (D/L) of the diameter (D) of the core to the thickness (L) of the shell is 10-60, the thickness of the shell is 5-40 nm, and the peak intensity (I1) of Ag 3d5/2 of silver and the peak intensity (I2) of Cu 2p3/2 of copper in the X-ray photoelectron spectrum satisfy formula 1. (Formula 1) I2/I1 ≤ 0.2 La présente invention concerne un nanofil métallique ayant une structure âme-enveloppe, le nanofil métallique étant conducteur et transparent tout en ayant une excellente stabilité à l'oxydation, et étant capable de maintenir une excellente stabilité d'oxydation même après un procédé secondaire utilisant le nanofil métallique selon la présente invention. Plus précisément, le nanofil métallique ayant une structure âme-enveloppe, selon la présente invention, comprend une âme contenant du cuivre et une enveloppe contenant de l'argent sur l'âme, le rapport (D/L) du diamètre (D) de l'âme sur l'épaisseur (L) de l'enveloppe étant de 10-60, l'épaisseur de l'enveloppe étant de 5-40 nm et l'intensité du pic (I1) d'Ag 3d5/2 de l'argent et l'intensité du pic (I2) de Cu 2p3/2 du cuivre dans le spectre photoélectronique des rayons X vérifiant la formule 1. (Formule 1) I2/I1 ≤ 0.2 본 발명은 전도성과 투명성의 특성을 가짐과 동시에 산화안정성이 우수하고, 본 발명의 금속 나노와이어를 이용한 2차 가공 공정 이 후에도 우수한 산화안정성을 유지 시킬 수 있는 코어-쉘 구조의 금속 나노와이어에 관한 것으로, 상세하게 본 발명에 따른 코어-쉘 구조의 금속 나노와이는 구리를 함유하는 코어 및 상기 코어 상에 은을 함유하는 쉘을 포함하고, 코어의 직경(D) 및 쉘의 두께(L)의 비(D/L)는 10 내지 60이며, 쉘의 두께는 5 내지 40 nm이고, X선 광전자 분광 스펙트럼에서 은의 Ag 3d5/2의 피크 강도(I1)와 구리의 Cu 2p3/2의 피크 강도(I2)는 하기 식 1을 만족하는 것을 특징으로 한다. (식 1) I2/I1 ≤ 0.2