Fabrication of Laser-induced graphene inside the polymer by direct laser irradiation

于2022年，我们利用一项名为ReaxFF的具前景的计算机模拟，完成了对透明聚合物在激光照射下的石墨化机制及组成变化的研究。该模拟为透明聚合物如何转化为激光诱导石墨烯（LIG）提供了有价值的见解，并使聚合物内化学结构变化的分析成为可能，与实验数据形成对比。此外，在激光照射过程中产生的气体被考虑在内，我们还研究了在透明聚合物复合材料中制造的LIG作为压力传感器和能量收集装置的适用性。与传统的LIG相比，直接在透明聚合物内部产生的LIG作为压力传感器和能量收集装置表现出优越的上级性能。与传统的LIG生产方法相比，这种增强的性能可归因于内部LIG的气隙增加和表面积更大。综上所述，我们在2022年的研究成功利用ReaxFF模拟来深入了解透明聚合物在激光照射下的石墨化机制，以及在透明聚合物复合材料中产生的LIG作为压力传感器和能量收集装置的潜在应用。这项研究的结果展示了内部LIG在性能方面的优势，并证明了这种方法在LIG生产和应用领域发生革命性变化的潜力。

In 2022, we concluded our investigation of the graphitization mechanism and changes in the composition of transparent polymers during laser irradiation using a promising computer simulation called ReaxFF. This simulation provided valuable insights into how transparent polymers are converted into laser-induced graphene (LIG) and enabled the analysis of chemical structure changes within the polymer, contrasting with experimental data. Additionally, the generation of gases during laser irradiation was taken into account.We also examined the applicability of LIG fabricated within transparent polymer composites as pressure sensors and energy harvesting devices. The LIG produced directly inside the transparent polymer exhibited superior performance as pressure sensors and energy harvesting devices compared to conventional LIG. This enhanced performance can be attributed to the increased air gaps and larger surface area of the internal LIG compared to traditional LIG production methods.In summary, our research in 2022 successfully utilized ReaxFF simulations to gain insights into the graphitization mechanism of transparent polymers during laser irradiation, as well as the potential applications of LIG produced within transparent polymer composites as pressure sensors and energy harvesting devices. The findings of this study showcase the advantages of internal LIG in terms of performance and demonstrate the potential of this method to revolutionize the field of LIG production and applications.