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CdTe／PVP纳米杂化材料制备及其荧光性能 被引量：2

Preparation and fluorescence properties of CdTe/PVP nanohybrids
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摘要 以巯基水相法将硫基乙酸(TGA)合成一系列不同粒径的Q态CdTe纳米晶,再与聚乙烯吡咯烷(PVP)杂化制备出具有红、黄、绿3种颜色的CdTe/PVP纳米杂化材料.通过紫外可见光谱仪(UV-vis)、X射线衍射(XRD)、光致发光(PL)等表征方法考察Q态CdTe纳米晶的尺寸、晶形及其光学性能并系统考察CdTe/PVP纳米杂化材料的荧光性能.结果表明pH从9.85变化到5.22,荧光强度有一定的增大.所制备的CdTe/PVP纳米杂化材料具有优越的荧光性能及荧光稳定性,其聚合物中的CdTe纳米晶仍然保持很好的量子尺寸效应和良好的分散性. Three kinds of CdTe/PVP nanohybrids with red, yellow and green emission colors were synthesized using poly （N-vinylpyrrolidone） （PVP） with as-prepared CdTe quantum dots （QDs） stabilized by thioglycolic acid （TGA） via the thio-aqueous synthetic approach. Ultraviolet-vusubke soectrisciot （UV-vis）, Fourier transform infrared spectrametry （FT-IR）, X-ray diffraction （XRD） and photoluminescence （PL） measurements were used to investigate the as-prepared CdTe nanocrystals along with the PL properties of CdTe/PVP samples. Results showed that photoluminescence properties could be improved by pH from 9.85 to 5.23, CdTe/PVP nanohybrids behaved good photoluminescence properties and fluorescent stability, the CdTe nanocrystals were well dispersed in polymer nanohybrids and had a good quantum size effect.
作者 程玉鹏 陈莉 陈苏
机构地区 南京工业大学化学化工学院
出处 《南京工业大学学报（自然科学版）》 CAS 北大核心 2009年第6期54-58,共5页 Journal of Nanjing Tech University(Natural Science Edition)
基金 国家自然科学基金资助项目(20606016,20576053,10676013) 江苏省教育厅高校重点自然科学基金资助项目(07KJA53009)
关键词 CdTe纳米晶 聚乙烯吡咯烷酮(PVP) 纳米复合材料 杂化物 CdTe nanocrystal poly （N-vinylpyrrolidone） （PVP） nanocomposites hybrids
分类号 O63 [理学—高分子化学]
  • 相关文献

参考文献15

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共引文献53

同被引文献25

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引证文献2

南京工业大学学报（自然科学版）
2009年 第6期

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