Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Ag Nanoparticle Self-Generation and Agglomeration via Laser-Induced Plasmonic Annealing for Metal Mesh-Based Transparent Wearable Heater

레이저 기반 플라즈모닉 어닐링을 통한 은 나노입자 자가 생성 및 소결 공정과 이를 활용한 메탈메쉬 전극 기반 투명 웨어러블 히터

  • Hwang, Yun Sik (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Nam, Ui Yeon (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Kim, Yeon Uk (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Woo, Yu Mi (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Heo, Jae Chan (Department of Mechanical Design Engineering, Kumoh National Institute of Technology) ;
  • Park, Jung Hwan (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
  • 황윤식 (금오공과대학교 기계설계공학과) ;
  • 남의연 (금오공과대학교 기계설계공학과) ;
  • 김연욱 (금오공과대학교 기계설계공학과) ;
  • 우유미 (금오공과대학교 기계설계공학과) ;
  • 허재찬 (금오공과대학교 기계설계공학과) ;
  • 박정환 (금오공과대학교 기계설계공학과)
  • Received : 2022.06.29
  • Accepted : 2022.07.06
  • Published : 2022.09.01
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Abstract

Laser-induced plasmonic sintering of metal nanoparticles (NPs) is a promising technology to fabricate flexible conducting electrodes, since it provides instantaneous, simple, and scalable manufacturing strategies without requiring costly facilities and complex processes. However, the metal NPs are quite expensive because complicated synthesis procedures are needed to achieve long-term reliability with regard to chemical deterioration and NP aggregation. Herein, we report laser-induced Ag NP self-generation and sequential sintering process based on low-cost Ag organometallic material for demonstrating high-quality microelectrodes. Upon the irradiation of laser with 532 nm wavelength, pre-baked Ag organometallic film coated on a transparent polyimide substrate was transformed into a high-performance Ag conductor (resistivity of 2.2 × 10-4 Ω·cm). To verify the practical usefulness of the technology, we successfully demonstrated a wearable transparent heater by using Ag-mesh transparent electrodes, which exhibited a high transmittance of 80% and low sheet resistance of 7 Ω/square.

Keywords

Acknowledgement

이 연구는 금오공과대학교 학술연구비로 지원되었음 (2019104167).

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