纳米墨水闪灯烧结的应用及工艺优化研究现状

Research Status of Application and Process Optimization of Intense Pulsed Light Sintering of Nanoparticle-ink

闪灯烧结技术,又称光子烧结技术,因具有快速、选择性、非接触、易与卷对卷装置集成等特点而受到广泛关注。对纳米墨水闪灯烧结技术在印刷电子、太阳能电池、增材制造、功能器件制备等领域的应用和研究现状进行了综述。介绍了在纳米墨水闪灯烧结中,烧结所得薄膜容易产生鼓包、裂纹、脱粘、翘曲等失效的现象及原因。介绍了两步闪灯烧结法、多次脉冲闪灯烧结法及多次循环闪灯烧结法这3种有效的工艺优化方法及应用。提出亟需机理性的基础研究,以理性指导闪灯烧结工艺优化。

Intense pulsed light(IPL)sintering technology or flash light sintering,has attracted extensive attention due to its advantages of fast,selective,non-contact and easily integrated with roll-to-roll equipment.The application and research status of IPL sintering nanoparticle-ink in the fields of printed electronics,solar cells,additive manufacturing and functional device fabrication were reviewed.The failure phenomenon such as bulging,cracks,debonding and warpage of the sintered films during IPL sintering and its reasons for failures were introduced.Three types of effective process optimizing methods named two-step flash light sintering,multi-pulsed flash light sintering and multi-cycle intense pulsed light sintering and their application were introduced.It was proposed that the basic mechanistic research was urgently needed,which can theoretically guide the optimization of IPL sintering process.