高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (10): 1930-1933.

• 研究论文 • 上一篇    下一篇

不同银膜粒径对单壁碳纳米管SERS谱的影响

刘冰冰1, 于淼1, 李冬妹1, 崔田1, 王霖1, 姚明光1, 于世丹1, 邹广田1, 王旭2, 赵冰2, Sundqvist Bertil3   

  1. 1. 吉林大学超硬材料国家重点实验室;
    2. 吉林大学超分子结构与材料教育部重点实验室,长春130012;
    3. Department of Experimental Physics,UmeáUniversity,SE290187,Umeá
  • 收稿日期:2004-07-28 出版日期:2005-10-10 发布日期:2005-10-10
  • 基金资助:

    国家自然科学基金(批准号:10204010,10276016);国家重点基础研究发展计划项目(批准号:2005CB724400);教育部高等学校博士学科点专项科研基金(批准号:20020183050);教育部科技创新工程重大项目培育资金(批准号:2004_295);“跨世纪优秀人才培养计划”、吉林省科技发展计划资助项目;SwedishResearchCouncil资助.

Effects of Silver Films with Different Nano-particle Sizes on SERS of Single-walled Carbon Nanotubes

LIU Bing-Bing1, YU Miao1, LI Dong-Mei1, CUI Tian1, WANG Lin1, YAO Ming-Guang1, YU Shi-Dan1, ZOU Guang-Tian1, WANG Xu2, ZHAO Bing2, SUNDQVIST Bertil3   

  1. 1. National Laboratory of Superhard Materials,
    2. Key Laboratory for Supramolecular Structure and Materials of Ministry of Education,Jilin University,Changchun 130012,China;
    3. Department of Experimental Physics,Umeá University,SE-90187,Umeá,Sweden
  • Received:2004-07-28 Online:2005-10-10 Published:2005-10-10

摘要: 利用化学沉积法和溶胶法制备了粒径在20-100 nm范围内不同的表面增强纳米结构活性银膜,系统地研究了单壁碳纳米管(SWCNT)的表面增强拉曼光谱(SERS)的G-band和D-band.比较玻璃和石英两种不同基片上的结果发现,单壁碳管的SERS谱随银膜粒径的变化有相同的变化趋势.G-band峰移对20-100nm范围内活性银膜粒径的差异不敏感,表明该波段所对应的碳管六元环本征振动比较稳定,与界面的化学相互作用较弱.D-band的峰形随基片和活性银膜粒径不同均有改变,且随着粒径变小,高频振动贡献有增大的趋势,表明无序碳与活性银膜间存在很强的相互作用.

关键词: 单壁碳纳米管, 表面增强拉曼光谱, 银膜, 粒径

Abstract: Surface-enhanced Raman Scattering(SERS) spectra of single-walled carbon nanotubes(SWCNTs) on silver films with different nano-particle sizes from 20-100 nm deposited on quartz and glass substrates were studied systematically.The characteristic Raman spectral features of SWCNT G-band and D-band were analyzed.The two bands show a similar tendency with the change of nano-particle size of silver on quartz and glass substrates.The position and the intensity of the G-band are less sensitive to the films silver particle sizes in the studied range,indicating that hexagonal carbon rings are stable and have a weak interaction with silver films.The shape of the D-band is dependent on the silver size.The smaller the silver particle size,the more the contribution of high frequency vibrations to the D-band,indicating that disorder carbon has a strong interaction with the active silver films.

Key words: Single-walled carbon nanotube, Surface-enhanced Raman scattering spectrum, Silver film, Nano-particle size

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