本文選題：石墨烯 + 電弧放電�。� 參考：《無(wú)機(jī)材料學(xué)報(bào)》2017年01期

【摘要】：導(dǎo)電油墨是印刷電子技術(shù)中使用的關(guān)鍵電子材料,而導(dǎo)電填料作為導(dǎo)電油墨的主要成分要求其化學(xué)性能穩(wěn)定且電導(dǎo)率高。其中,基于石墨烯的導(dǎo)電油墨因?yàn)槠鋬?yōu)異的電學(xué)性質(zhì)受到廣泛關(guān)注。本研究采用直流電弧放電法制備的石墨烯作為導(dǎo)電填料,并通過(guò)掃描電子顯微鏡、透射電子顯微鏡、拉曼光譜等手段對(duì)制備的石墨烯進(jìn)行了表征。結(jié)果表明:直流電弧放電法制備的石墨烯為2~10層、尺寸在100~200 nm范圍且純度高、結(jié)晶性好。在此基礎(chǔ)上,研究了涂層厚度、熱處理溫度以及彎曲角度等對(duì)石墨烯導(dǎo)電油墨導(dǎo)電性能的影響。研究發(fā)現(xiàn),石墨烯導(dǎo)電油墨電阻率與涂層厚度、熱處理溫度成反比,且隨著厚度、溫度的增加石墨烯導(dǎo)電油墨的電阻率逐漸降低。并且樣品在柔性基底上經(jīng)過(guò)不同角度的彎曲折疊后電阻率沒(méi)有明顯變化。當(dāng)厚度為170μm的樣品經(jīng)過(guò)360℃(30 min)熱處理后,石墨烯導(dǎo)電油墨的電阻率僅為0.003?·cm。上述結(jié)果表明,電弧法制備的石墨烯導(dǎo)電油墨有望成為未來(lái)印制電子領(lǐng)域的關(guān)鍵材料。
[Abstract]:Conductive ink is a key electronic material used in electronic printing technology. As the main component of conductive ink, conductive filler requires stable chemical properties and high conductivity. Among them, conductive ink based on graphene has attracted wide attention because of its excellent electrical properties. Graphene prepared by DC arc discharge method was used as conductive filler. The graphene was characterized by scanning electron microscope, transmission electron microscope and Raman spectroscopy. The results show that the graphene prepared by DC arc discharge method has 10 layers of graphene, and its size is in the range of 100 ~ 200nm, the purity is high, and the crystallinity is good. On this basis, the effects of coating thickness, heat treatment temperature and bending angle on the conductive properties of graphene conductive ink were studied. It is found that the resistivity of graphene conductive ink is inversely proportional to the coating thickness and heat treatment temperature, and the resistivity of graphene conductive ink decreases with the increase of the thickness. The resistivity of the sample does not change obviously after bending and folding at different angles on the flexible substrate. The resistivity of graphene conductive ink is only 0.003? cm when the sample with 170 渭 m thickness is heat treated at 360 鈩，

本文編號(hào)：1785002