{"title":"激光刻写柔性微超级电容器vo2多晶型相关的储能性能","authors":"Sundararajan Ashok Kumar, , , Savitridevi Nadavurmath, , , Surjit Sahoo, , , Gurunatha Kargal Laxminarayana*, , and , Chandra Sekhar Rout*, ","doi":"10.1021/acsaelm.5c01189","DOIUrl":null,"url":null,"abstract":"<p >With the rapid advancement of portable electronic devices, the demand for miniaturized and integrated energy-storage systems has grown significantly. Among these, microbatteries and microsupercapacitors (MSCs) play a crucial role in powering next-generation wearable and flexible electronics. In this study, we report high-performance MSCs based on various polymorphs of vanadium dioxide (VO<sub>2</sub>), including VO<sub>2</sub>(A), VO<sub>2</sub>(B), VO<sub>2</sub>(D), and VO<sub>2</sub>(M) on laser-induced graphene (LIG) polyimide (PI) films. Through comprehensive electrochemical characterization, we found that the flexible VO<sub>2</sub>(M)-based MSC exhibited a superior energy-storage performance, delivering a high specific energy of 0.66 mWh cm<sup>–2</sup> and a power density of 858 W cm<sup>–2</sup>, outperforming other VO<sub>2</sub> polymorphs. Furthermore, the device demonstrated remarkable mechanical flexibility, maintaining a stable electrochemical performance even at bending angles of 0°, 120°, and 180°. These findings highlight the potential of VO<sub>2</sub>(M)-based MSCs as promising candidates for all-solid-state, flexible, miniaturized energy-storage devices, paving the way for their integration into next-generation portable and wearable electronic devices.</p>","PeriodicalId":3,"journal":{"name":"ACS Applied Electronic Materials","volume":"7 19","pages":"8850–8860"},"PeriodicalIF":4.7000,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"VO2-Polymorph-Dependent Energy-Storage Performance of Laser-Scribed Flexible Microsupercapacitors\",\"authors\":\"Sundararajan Ashok Kumar, , , Savitridevi Nadavurmath, , , Surjit Sahoo, , , Gurunatha Kargal Laxminarayana*, , and , Chandra Sekhar Rout*, \",\"doi\":\"10.1021/acsaelm.5c01189\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >With the rapid advancement of portable electronic devices, the demand for miniaturized and integrated energy-storage systems has grown significantly. Among these, microbatteries and microsupercapacitors (MSCs) play a crucial role in powering next-generation wearable and flexible electronics. In this study, we report high-performance MSCs based on various polymorphs of vanadium dioxide (VO<sub>2</sub>), including VO<sub>2</sub>(A), VO<sub>2</sub>(B), VO<sub>2</sub>(D), and VO<sub>2</sub>(M) on laser-induced graphene (LIG) polyimide (PI) films. Through comprehensive electrochemical characterization, we found that the flexible VO<sub>2</sub>(M)-based MSC exhibited a superior energy-storage performance, delivering a high specific energy of 0.66 mWh cm<sup>–2</sup> and a power density of 858 W cm<sup>–2</sup>, outperforming other VO<sub>2</sub> polymorphs. Furthermore, the device demonstrated remarkable mechanical flexibility, maintaining a stable electrochemical performance even at bending angles of 0°, 120°, and 180°. These findings highlight the potential of VO<sub>2</sub>(M)-based MSCs as promising candidates for all-solid-state, flexible, miniaturized energy-storage devices, paving the way for their integration into next-generation portable and wearable electronic devices.</p>\",\"PeriodicalId\":3,\"journal\":{\"name\":\"ACS Applied Electronic Materials\",\"volume\":\"7 19\",\"pages\":\"8850–8860\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2025-10-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Electronic Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.acs.org/doi/10.1021/acsaelm.5c01189\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Electronic Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsaelm.5c01189","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
摘要
随着便携式电子设备的快速发展，对小型化、集成化储能系统的需求日益增长。其中，微电池和微超级电容器（MSCs）在为下一代可穿戴和柔性电子产品供电方面发挥着至关重要的作用。在这项研究中，我们报道了基于多种二氧化钒（VO2）多晶型的高性能MSCs，包括VO2(A), VO2(B), VO2(D)和VO2(M)在激光诱导石墨烯（LIG）聚酰亚胺（PI）薄膜上。通过全面的电化学表征，我们发现基于VO2(M)的柔性MSC具有优异的储能性能，其比能高达0.66 mWh cm-2，功率密度为858 W cm-2，优于其他VO2多晶型材料。此外，该器件表现出卓越的机械灵活性，即使在0°，120°和180°的弯曲角度下也能保持稳定的电化学性能。这些发现突出了基于VO2(M)的MSCs作为全固态、柔性、小型化储能设备的潜力，为其集成到下一代便携式和可穿戴电子设备中铺平了道路。
VO2-Polymorph-Dependent Energy-Storage Performance of Laser-Scribed Flexible Microsupercapacitors
With the rapid advancement of portable electronic devices, the demand for miniaturized and integrated energy-storage systems has grown significantly. Among these, microbatteries and microsupercapacitors (MSCs) play a crucial role in powering next-generation wearable and flexible electronics. In this study, we report high-performance MSCs based on various polymorphs of vanadium dioxide (VO2), including VO2(A), VO2(B), VO2(D), and VO2(M) on laser-induced graphene (LIG) polyimide (PI) films. Through comprehensive electrochemical characterization, we found that the flexible VO2(M)-based MSC exhibited a superior energy-storage performance, delivering a high specific energy of 0.66 mWh cm–2 and a power density of 858 W cm–2, outperforming other VO2 polymorphs. Furthermore, the device demonstrated remarkable mechanical flexibility, maintaining a stable electrochemical performance even at bending angles of 0°, 120°, and 180°. These findings highlight the potential of VO2(M)-based MSCs as promising candidates for all-solid-state, flexible, miniaturized energy-storage devices, paving the way for their integration into next-generation portable and wearable electronic devices.
期刊介绍：
ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric.
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