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Optimizing Silver Paste Conductivity with Controlled Convection for Nanowrinkle Growth.
Li, Panzhen; Huang, Zhe; Yang, Jin; Zhang, Chenhe; Tang, Siwei; Ma, Yunzhu; Liu, Wensheng.
Afiliación
  • Li P; State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
  • Huang Z; State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
  • Yang J; State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
  • Zhang C; State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
  • Tang S; State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
  • Ma Y; State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
  • Liu W; State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
ACS Appl Mater Interfaces ; 16(26): 34181-34191, 2024 Jul 03.
Article en En | MEDLINE | ID: mdl-38885088
ABSTRACT
Conductive silver paste plays a crucial role as an interconnecting material between electrodes and circuits in electronic circuits and solar cells. The quality of the silver paste is greatly influenced by the preparation of the conductive-phase silver powder and the sintering process. This study investigated the impact of fluid dynamics on the preparation of silver powder. Combined with X-ray diffractometer characterization and molecular dynamics simulation, the formation mechanism of wrinkled silver powder was explained. The wrinkled silver powder replaced the traditional smooth spherical silver powder, and the point contact between the smooth silver powder turned into a line and surface contact. After mixing and sintering with the micrometer flake silver powder, the electrical conductivity and sintering morphology of the silver paste were improved. Compared with the silver content of conventional silver paste (≥75 wt %), the silver paste of (9.23 ± 0.68) × 10-6 Ω cm can be prepared by curing at 250 °C for 45 min when wrinkled powder/flake powder = 11 and silver paste content was only 66.7%. This research work provides a new idea for the morphology control of submicrometer silver powder, which has important applications in the field of low-temperature silver paste for new N-type batteries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos