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Effects of Beam Pulse Width and Power Density in Silver Nanowire Welding Using Pulsed IR Laser

적외선 레이저 공정을 통한 실버나노와이어 접합에서의 빔 펄스폭과 출력의 영향

  • Kim, Joohan (Dept. of Mechanical & Automotive Engineering, Seoul Nat'l Univ. of Science and Technology) ;
  • Yoon, Sang Woo (Dept. of Mechanical & Automotive Engineering, Seoul Nat'l Univ. of Science and Technology)
  • 김주한 (서울과학기술대학교 기계.자동차공학과) ;
  • 윤상우 (서울과학기술대학교 기계.자동차공학과)
  • Received : 2014.04.14
  • Accepted : 2014.05.27
  • Published : 2014.08.01

Abstract

A direct pulsed laser process for welding and networking silver nanowires was developed. The welded nanowire network demonstrated modified electrical properties in a transparent substance. In particular, the welding points on the nanowires were investigated to measure the resistance at the connections. The level of networking in nanowires was explored with respect to various laser pulse widths and average power densities. In particular, the influence of laser beam density was investigated in detail. Selective laser treatment can be advantageous in imparting customized local property changes in transparent conducting materials. Various applications of the process are also discussed in this paper.

Keywords

Pulsed Laser;Silver;Nanowire;Micro Fabrication

Acknowledgement

Supported by : 서울과학기술대학교

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