Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (10): 2071.

• Articles • Previous Articles     Next Articles

Preparation of CdHgTe Nanocrystal and Poly(vinyl alcohol) Nanofibers with Near Infrared Emission

SUN Hai-Zhu1,2*, ZHANG Hao2, JU Jie2, ZHANG Jun-Hu2, LI Min-Jie2, TANG Yue2, YANG Bai2*   

  1. 1. College of Chemistry, Northeast Normal University, Changchun 130024, China;
    2. State Key Laboratory of Supramolecular Structure and Materials, Jilin Univeristy, Changchun 130012, China
  • Received:2009-04-27 Online:2009-10-10 Published:2009-10-10
  • Contact: SUN Hai-Zhu, E-mail: sunhz335@nenu.edu.cn; YANG Bai, E-mail: byangchem@jlu.edu.cn
  • Supported by:

    国家“九七三”计划(批准号: 2007CB936402)、国家自然科学基金(批准号: 20804008, 20704014)、高等学校全国优秀博士学位论文作者专项资金(批准号: 200734)、吉林省科技发展项目(批准号: 20082212)和长春应化所高分子物理与化学国家重点实验室开放课题资助.

Abstract:

Stable CdHgTe nanocrystals(NCs) were prepared via one-step in water. The nanofibers of CdHgTe NCs and poly(vinyl alcohol)(PVA) were obtained from electrospinning the mixing solution of CdHgTe NC and PVA. The diameter of the nanofibers were tuned from 200—400 nm by varying the mass fraction(4%—12%) of PVA solution. The best morphology of the nanofiber was got in the mass fraction range from 8%—10%. The nanofibers had strong photoluminescence in the range of near infrared(NIR) wavelength. Above all, they maintained the original peak position of the NCs in water, which was very difficult for the NC and polymer composites prepared using other methods. Moreover, the stability of the NCs was further improved. They showed a thermal stability at the temperature of 120 ℃, which was much higher than that(80 ℃) of in water.

Key words: Nanocrystal; Polymer; Nanofiber; Near infrared emission

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