In addressing the limitations of traditional laser-induced graphene (LIG) derived from colored polymers, our research pivots to the utilization of colorless polyimide (CPI) for LIG fabrication, aiming to leverage CPI’s optical transparency for enhanced applicability in advanced technologies. Despite CPI-based LIG (C-LIG)’s potential, its electrochemical performance has lagged behind that of pure graphene, prompting a need for performance enhancement. Our study introduces novel oxygen plasma treatment and multi-step laser process- ing techniques, underpinned by ReaxFF molecular dynamics simulations, to integrate gold nanoparticles (AuNPs) into the C-LIG matrix, creating Au-C-LIG. These methodologies yielded electrochemical improvements, with surface potential and work function increases from 4.70 to 4.94 eV, enhancing the triboelectric effect. Validation through SEM, XPS, XRD, and TEM analyses confirmed these enhancements. Furthermore, the Au-C-LIG-based pressure sensor demonstrated exceptional sensitivities of 27.56 kPa (0–3 kPa), 6.97 kPa (3–7 kPa), and 0.65 kPa (7–25 kPa), alongside rapid response/recovery times of 38/35 ms, surpassing existing graphene-based sensors. The introduction of these novel fabricating techniques enhances the potential of C-LIG and improves its applicability in the realms of wearable devices and energy harvesting.

中文翻译：

---

通过金纳米粒子集成增强无色聚酰亚胺衍生的激光诱导石墨烯的电化学性能：迈向先进的可穿戴和能量收集应用

为了解决源自有色聚合物的传统激光诱导石墨烯 (LIG) 的局限性，我们的研究重点是利用无色聚酰亚胺 (CPI) 进行 LIG 制造，旨在利用 CPI 的光学透明度来增强先进技术的适用性。尽管基于CPI的LIG（C-LIG）具有潜力，但其电化学性能落后于纯石墨烯，因此需要增强性能。我们的研究引入了新型氧等离子体处理和多步激光加工技术，以 ReaxFF 分子动力学模拟为基础，将金纳米颗粒 (AuNP) 整合到 C-LIG 基质中，形成 Au-C-LIG。这些方法带来了电化学方面的改进，表面电势和功函数从 4.70 eV 增加到 4.94 eV，增强了摩擦起电效应。通过 SEM、XPS、XRD 和 TEM 分析验证证实了这些增强功能。此外，基于 Au-C-LIG 的压力传感器表现出 27.56 kPa (0–3 kPa)、6.97 kPa (3–7 kPa) 和 0.65 kPa (7–25 kPa) 的卓越灵敏度，以及快速响应/恢复时间38/35 ms，超过了现有的基于石墨烯的传感器。这些新颖制造技术的引入增强了 C-LIG 的潜力，并提高了其在可穿戴设备和能量收集领域的适用性。