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Direct Growth of Substrate-Adhered Graphene on Flexible Polymer Substrates for Soft Electronics
Chemistry of Materials ( IF 7.2 ) Pub Date : 2019-05-30 00:00:00 , DOI: 10.1021/acs.chemmater.9b00948 Eunho Lee 1 , Seung Goo Lee 2 , Kilwon Cho 1
Chemistry of Materials ( IF 7.2 ) Pub Date : 2019-05-30 00:00:00 , DOI: 10.1021/acs.chemmater.9b00948 Eunho Lee 1 , Seung Goo Lee 2 , Kilwon Cho 1
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This article describes a novel method of growing graphene directly on a flexible substrate at low temperatures using plasma-enhanced chemical vapor deposition with a solid aromatic hydrocarbon source, 1,2,3,4-tetraphenylnaphthalene (TPN), which acts as the feedstock for graphene growth. TPN is embedded with copper ions that are reduced under the growth conditions to copper nanoparticles that catalyze the graphene growth and then evaporate to leave pristine graphene. Strong covalent bonds between the TPN film and the flexible substrate, prepared by depositing an aluminum oxide (Al2O3) layer on a colorless polyimide layer, are generated by exposing the TPN film to ultraviolet/ozone. The TPN/substrate interfacial adhesive bonds impede the sublimation of TPN from the flexible substrate at the growth temperature, and TPN can convert directly to graphene. The synthesized substrate-adhered graphene shows excellent bending stability, with small electrical resistance changes (the resistance R during bending over initial resistance R0 was R/R0 < 1.2 for compressive strain, and R/R0 < 1.4 for tensile strain at ε = 4.68%). Graphene is appropriate for use in flexible and transparent electrodes for electronic device applications. The proposed method for directly synthesizing substrate-adhered graphene on a flexible substrate is expected to have wide applications in flexible and wearable electronics.
中文翻译：
用于软电子的柔性聚合物基板上直接附着有基板的石墨烯
本文介绍了一种新的方法，该方法是使用等离子体增强的化学气相沉积技术，利用固体芳香烃源1,2,3,4-四苯基萘（TPN）作为等离子体的原料，在低温下在柔性基板上直接生长石墨烯的新方法。石墨烯的生长。TPN内嵌有铜离子，这些铜离子在生长条件下会还原为催化石墨烯生长的铜纳米颗粒，然后蒸发而留下原始的石墨烯。通过沉积氧化铝（Al 2 O 3通过将TPN膜暴露在紫外线/臭氧下，可以在无色聚酰亚胺层上形成一层无色聚酰亚胺层。TPN /基材界面粘合剂会阻止TPN在生长温度下从柔性基材中升华，并且TPN可以直接转化为石墨烯。合成的粘附有基材的石墨烯表现出优异的弯曲稳定性，电阻变化小（弯曲时的电阻R超过初始电阻R 0的压缩应变为R / R 0 <1.2，R / R 0ε= 4.68％时的拉伸应变<1.4。石墨烯适合用于电子设备应用的柔性和透明电极中。所提出的直接在柔性衬底上合成衬底粘附的石墨烯的方法有望在柔性和可穿戴电子设备中具有广泛的应用。
更新日期：2019-05-30
中文翻译：
用于软电子的柔性聚合物基板上直接附着有基板的石墨烯
本文介绍了一种新的方法，该方法是使用等离子体增强的化学气相沉积技术，利用固体芳香烃源1,2,3,4-四苯基萘（TPN）作为等离子体的原料，在低温下在柔性基板上直接生长石墨烯的新方法。石墨烯的生长。TPN内嵌有铜离子，这些铜离子在生长条件下会还原为催化石墨烯生长的铜纳米颗粒，然后蒸发而留下原始的石墨烯。通过沉积氧化铝（Al 2 O 3通过将TPN膜暴露在紫外线/臭氧下，可以在无色聚酰亚胺层上形成一层无色聚酰亚胺层。TPN /基材界面粘合剂会阻止TPN在生长温度下从柔性基材中升华，并且TPN可以直接转化为石墨烯。合成的粘附有基材的石墨烯表现出优异的弯曲稳定性，电阻变化小（弯曲时的电阻R超过初始电阻R 0的压缩应变为R / R 0 <1.2，R / R 0ε= 4.68％时的拉伸应变<1.4。石墨烯适合用于电子设备应用的柔性和透明电极中。所提出的直接在柔性衬底上合成衬底粘附的石墨烯的方法有望在柔性和可穿戴电子设备中具有广泛的应用。
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