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西北工业大学应用物理系 陕西省光信息技术重点实验室, 陕西 西安 710072
收稿日期:2013-06-04,
修回日期:2013-06-28,
纸质出版日期:2013-10-10
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吴广荣, 郑建邦, 屈俊荣, 徐佳伟, 王雪艳, 曹崇德. 聚(2-甲氧基-5-辛氧基)对苯乙炔/单壁碳纳米管复合材料的光致发光特性[J]. 发光学报, 2013,34(10): 1264-1269
WU Guang-rong, ZHENG Jian-bang, QU Jun-rong, XU Jia-wei, WANG Xue-yan, CHAO Chong-de. Photoluminescence Properties of Poly(2-methoxy-5-octyloxy)1, 4-phenylenevinylene/Single-walled Carbon Nanotubes Composites[J]. Chinese Journal of Luminescence, 2013,34(10): 1264-1269
吴广荣, 郑建邦, 屈俊荣, 徐佳伟, 王雪艳, 曹崇德. 聚(2-甲氧基-5-辛氧基)对苯乙炔/单壁碳纳米管复合材料的光致发光特性[J]. 发光学报, 2013,34(10): 1264-1269 DOI: 10.3788/fgxb20133410.1264.
WU Guang-rong, ZHENG Jian-bang, QU Jun-rong, XU Jia-wei, WANG Xue-yan, CHAO Chong-de. Photoluminescence Properties of Poly(2-methoxy-5-octyloxy)1, 4-phenylenevinylene/Single-walled Carbon Nanotubes Composites[J]. Chinese Journal of Luminescence, 2013,34(10): 1264-1269 DOI: 10.3788/fgxb20133410.1264.
采用原位聚合法在无水四氢呋喃(THF)溶液中制备了聚(2-甲氧基-5-辛氧基)对苯乙炔(MOPPV)/单壁碳纳米管(SWNTs)复合材料。通过对该复合材料的红外光谱、X射线衍射、透射电镜、扫描电镜等的研究
证实SWNTs 已聚合到MOPPV上且被MOPPV紧密有效地包覆
形成了纳米线网状结构。通过紫外-可见(UV-Vis) 吸收光谱和光致发光(PL)谱发现:随着SWNTs掺杂量的增加
该复合材料的吸收强度逐渐增强且最大吸收峰出现红移
其发光强度呈现先升高后降低的趋势
发光峰蓝移。当SWNTs掺杂质量分数为3.85%时
复合材料的发光强度最大
此时最大发光峰位较纯MOPPV蓝移8 nm。研究结果表明:在MOPPV 中掺入一定量的SWNTs
能有效地增强复合材料的光致发光强度。
Poly(2-methoxy-5-octyloxy)1
4-phenylenevinylene(MOPPV)/single-walled carbon nanotubes (SWNTs) composites are prepared in anhydrous tetrahydrofuran(THF) solution by in-situ polymerization. The characteritics of MOPPV/SWNTs composites are investigated with infrared absorption spectroscopy
X-ray diffraction
transmission electron microscopy
and scanning electron microscopy. The results confirm that SWNTs are polymerized and closely cladded to MOPPV
forming the nanowire structure. The results of the UV-Vis absorption and photoluminescence spectra indicate that the absorption intensity of MOPPV/SWNTs composites is strengthened and the photoluminescence intensity firstly increases and then decreases with the increase of the contents of SWNTs
the red-shift of its absorption peak and the blue-shift of its emissive peak are observed with the increase of the contents of SWNTs. Especially
the highest photoluminescence intensity is obtained and the blue-shift of its emission peak is nearly 8 nm under 3.85% mass fraction of SWNTs. The results show that the doping of SWNTs can effectively enhance the photoluminescence intensity of MOPPV/SWNTs composites.
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