碳纤维表面金属化及其场发射特性研究

杨兰; 叶芸; 林志贤; 郭太良

光电子技术, 2010, 30 (3): 168, 网络出版: 2011-01-26

碳纤维表面金属化及其场发射特性研究

Study on Surfacial Metallization and Field Emission Properties of Carbon Fibers

论文大纲

杨兰 ^1,2,*叶芸 ²林志贤 ²郭太良 ²

作者单位

¹ 福建集美大学理学院,福建厦门 361021

² 福州大学物理与信息工程学院,福州 350002

碳纤维表面金属化场发射厚度 CNFs surfacial metallization field emission thickness

摘要

采用化学镀镍对碳纤维(Carbon fibers, CNFs)表面金属化,研究不同厚度的表面金属化碳纤维的场发射性能。实验结果表明,碳纤维表面金属化后体电阻率明显降低,场发射性能显著提高;厚度不同的金属化碳纤维的场发射性能不同。当化学镀时间为30 min,镍金属膜厚约3.25 μm时,碳纤维体电阻率ρ降至1.35×10-4Ω·cm,场发射性能最优,当电压为638 V时出现亮点,电压为1 425 V时,亮度最高达988 cd/m2。

Abstract

Carbon fibers (CNFs) were surfacial metallized by electroless deposited with nickel, and their field emission properties were investigated by diode test. The results indicated that the different nickel thicknesses of CNFs were affected on their field emission properties, which the volume resistivity of CNFs was decreased and field emission property was increased, respectively, after CNFs were surfacial metallized. It was found that CNFs owned the best field emission properties after electroless depositing for 30 min, with nickel metal thickness as 3.25μm and volume resistivity down to 1.35×10-4Ω·cm. The field emission tests showed when applied voltage was 638 V, CNFs appeared bright dots, and the high luminance achieved 988 cd/m2 under applied voltage 1 425 V.

参考文献

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杨兰, 叶芸, 林志贤, 郭太良. 碳纤维表面金属化及其场发射特性研究[J]. 光电子技术, 2010, 30(3): 168. Yang Lan, Ye Yun, Lin Zhixian, Guo Tailiang. Study on Surfacial Metallization and Field Emission Properties of Carbon Fibers[J]. Optoelectronic Technology, 2010, 30(3): 168.

碳纤维表面金属化及其场发射特性研究

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