Laser-architected Porous Graphene Composite on Liquid Crystal Polymer Films for Vertically Integrated Microsupercapacitor Arrays
발표자
홍석원 (부산대학교)
연구책임자
홍석원 (부산대학교)
공동저자
이재원 (부산대학교), 강상우 (부산대학교), 홍석원 (부산대학교)
초록
내용
Microsupercapacitors (MSCs) are promising candidates for flexible electronics, that require compact, high-power energy buffering. However, practical use is limited by electrodes requiring sophisticated procedures. To enable scalable, facile fabrication, we present a porous graphene composite on liquid crystal polymer (LCP) films via laser-induced graphene (LIG) patterning and in situ photothermal growth of bimetallic metal oxides from dispersed metal-salt precursors in the porous LIG matrix. The resulting oxide nanophases embedded in 3D LIG mitigate the low capacitance of pristine LIG while retaining mechanical compliance. The interdigitated MSC delivers ~527 mF cm−2 areal capacitance and ~9.16 mW cm−2 power density, surpassing previously reported laser-fabricated MSCs. Moreover, through-vias in ultrathin LCP enable vertical integration of tens of MSCs, achieving ~1260 μWh cm−2 areal energy density while preserving a compact form factor.