液晶-氧化锌纳米复合材料的可调发光

陈兰莉; 刘斌; 石明吉

doi:10.3788/fgxb20183904.0562

您当前的位置：

首页 >

文章列表页 >

液晶-氧化锌纳米复合材料的可调发光

器件制备及器件物理 | 更新时间：2020-08-12

- 液晶-氧化锌纳米复合材料的可调发光
- Tunable Emission Colours from Liquid Crystal/ZnO Nanocomposites
- 发光学报 2018年39卷第4期页码：562-567
- 作者机构：
  
  南阳理工学院电子与电气工程学院, 河南南阳 473000
- 作者简介：
- 基金信息：
  
  河南省基础与前沿技术研究计划（122300410205）();河南省科技攻关计划（182102310794，152102210217）();河南省教育厅科学技术研究重点
- DOI：10.3788/fgxb20183904.0562
  中图分类号： O482.31
- 纸质出版日期：2018-4-5，
  
  网络出版日期：2017-10-25，
  
  收稿日期：2017-7-20，
  
  修回日期：2017-10-17，
扫描看全文
陈兰莉, 刘斌, 石明吉. 液晶-氧化锌纳米复合材料的可调发光[J]. 发光学报, 2018,39(4): 562-567

CHEN Lan-li, LIU Bin, SHI Ming-ji. Tunable Emission Colours from Liquid Crystal/ZnO Nanocomposites[J]. Chinese Journal of Luminescence, 2018,39(4): 562-567
陈兰莉, 刘斌, 石明吉. 液晶-氧化锌纳米复合材料的可调发光[J]. 发光学报, 2018,39(4): 562-567 DOI： 10.3788/fgxb20183904.0562.

CHEN Lan-li, LIU Bin, SHI Ming-ji. Tunable Emission Colours from Liquid Crystal/ZnO Nanocomposites[J]. Chinese Journal of Luminescence, 2018,39(4): 562-567 DOI： 10.3788/fgxb20183904.0562.

摘要

采用超声波分散技术，选用氧化锌纳米晶体和液晶（N-（4-methoxybenzylidene）-4-ethoxybenzenamine），制成液晶质量分数分别为10%、20%、30%、40%、50%、60%、70%、80%的液晶-氧化锌纳米复合材料。通过X射线衍射仪、透射电子显微镜、光致发光光谱仪对样品进行表征。实验结果表明：当液晶MB

BA在氧化锌纳米晶体的质量分数从0增加到80%时，氧化锌纳米复合材料的PL光谱峰值最终移到了418 nm的蓝光区域。随着氧化锌纳米晶体中液晶分子的增加，氧化锌纳米晶体的表面缺陷减少、其深层发光明显削弱，氧化锌纳米晶体的光致发光可以由最初的黄绿色转变为蓝色。因此，可以在氧化锌纳米晶体中通过添加适量的液晶MB

BA来实现蓝光发射。

Abstract

BA/ZnO nanocomposites with different mass fraction of liquid crystal N-(4-methoxybenzylidene)-4-ethoxybenzenamine(MB

BA) were successfully prepared by ultrasonic dispersing technology. The prepared MB

BA/ZnO nanocomposites were characterized by X-ray diffraction(XRD)

transmission electron microscopy(TEM) and photoluminescence(PL) spectroscopy

respectively. The experimental results show that the UV emission of ZnO nanocrystals and PL of the MB

BA is about to form a blue emission band with its peak located at about 418 nm when the concentration of MB

BA in ZnO is up to 80%. By increasing the concentration of MB

BA in ZnO nanocrystals

deep-level luminescence obviously weakened with reducing the surface defects of the ZnO nanocrystals

and the originally yellow-green photoluminescence of the ZnO nanocrystals can be tuned to blue. Our results demonstrate that the blue colored photoluminescence can be achieved by mixing appropriate amount of MB

BA with ZnO nanocrystals.

关键词

氧化锌超声波分散技术光致发光

Keywords

ZnOultrasonic dispersing technologyphotoluminescence

references

潘跃武. 氧化锌纳米结构的制备及发光性质研究[J]. 发光学报, 2013, 34(8):994-999. PAN Y W. Synthesis and photoluminescence properties of zinc oxide nanostructures[J]. Chin. J. Lumin., 2013, 34(8):994-999. (in Chinese)

陈兰莉, 刘斌. 表面修饰Pt对TiO2纳米粒子光催化性能的影响研究[J]. 化工新型材料, 2017, 45(3):202-206. CHEN L L, LIU B. The photocatalytic property of Pt decorated TiO2 nanoparticles[J]. New Chem. Mater., 2017,45(3):202-206. (in Chinese)

HAMMAD T M, SALEM J K, HARRISON R G. Binding agent affect on the structural and optical properties of ZnO nanoparticles[J]. Rev. Adv. Mater. Sci., 2009, 22:74-80.

汤洋, 陈颉. 电沉积掺铝氧化锌纳米柱的光学带隙蓝移与斯托克斯位移[J]. 发光学报, 2014, 35(10):1165-1171. TANG Y, CHEN J. Optical band gap blue shift and stokes shift in Al-doped ZnO nanorods by electrodeposition[J]. Chin. J. Lumin., 2014, 35(10):1165-1171. (in Chinese)

CHEN L L, TANG Z K. Microstructures and photoluminescence of electrochemically-deposited ZnO films on porous silicon and silicon[J]. Key Eng. Mater., 2013, 538:30-33.

高松, 赵谡玲, 徐征,等. 氧化锌纳米颗粒薄膜的近紫外电致发光特性研究[J]. 物理学报, 2014, 63(15):157702. GAO S, ZHAO S L, XU Z, et al.. Near ultraviolet luminescence characteristics of ZnO nanoparticle film[J]. Acta Phys. Sinica, 2014, 63(15):157702. (in Chinese)

胡江, 王茗, 曹雪丽. 氧化锌纳米粒子的合成及其表面功能化修饰[J]. 人工晶体学报, 2014, 43(5):1229-1235. HU J, WANG M, CAO X L. Synthesis and surface functional modification of zinc oxide nanoparticles[J].J. Synth. Cryst., 2014, 43(5):1229-1235. (in Chinese)

CHEN W, LI F, CHEN Y W, et al.. Enhancement of the ultraviolet emission of ZnO nanorods by terphenyl liquid-crystalline ligands modification[J]. Appl. Sur. Sci., 2011, 257:8788-8793.

PENG X M, CHEN Y W, LI F, et al.. Preparation and optical properties of ZnO@PPEGMA nanoparticles[J]. Appl. Surf. Sci., 2009, 255:7158-7163.

MASUDA Y, YAMAGISHI M, SEO W S, et al.. Photoluminescence from ZnO nanoparticles embedded in an amorphous matrix[J]. Cryst. Growth Design, 2008, 8:1503-1508.

SHISHIDO A, TSUTSUMI O, KANAZAWA A, et al.. Rapid optical switching by means of photoinduced change in refractive index of azobenzene liquid crystals detected by reflection-mode analysis[J]. J. Am. Chem. Soc., 1997, 119:7791-7796.

胡立发, 彭增辉, 王启东, 等. 纯位相液晶调制器的响应特性计算[J]. 液晶与显示, 2017, 32(3):182-189. HU L F, PENG Z H, WANG Q D, et al.. Calculation of electro-optical characteristics of phase only liquid crystal modulator[J]. Chin. J. Liq. Cryst. Disp., 2017, 32(3):182-189. (in Chinese)

陈兰莉, 张丹. 含偶氮苯弯曲液晶的光化学性质研究[J]. 量子电子学报, 2011, 28(5):622-628. CHEN L L, ZHANG D. Photochemical properties of bent-core liquid crystal containing azobenzene[J]. J. Quant. Electron., 2011, 28(5):622-628. (in English)

陈兰莉, 汤中科. 香蕉型液晶的电子结构计算和电激发特性[J]. 液晶与显示, 2009, 24(4):478-481. CHEN L L, TANG Z K. Electronic structure and electron transition of banana-shaped liquid crystals[J]. Chin. J. Liq. Cryst. Disp., 2009, 24(4):478-481. (in Chinese)

CHEN L L, ZHAI B G, HUANG Y M. Photosbility of an antiferroelectric banana-shaped liquid crystal[J]. Key Eng. Mater., 2010, 428-429:194-197.

UTHIRAKUMAR P, LEE Y S, SUH E K, et al.. Hybrid fluorescent polymer-zinc oxide nanoparticles improved efficiency for luminescence conversion LED[J]. J. Lumin., 2008, 128:287-296.

LIN H C, JIANG M D, WANG L Y, et al.. Dopant effects of photoreactive ZnO nanoparticles on fast response LC materials in optical compensated bend (OCB) mode liquid crystal displays[J]. Chin. Institute Eng., 2010, 33:1069-1074.

RESHCHIKOVA M A, MORKOC H, NEMETH B, et al.. Luminescence properties of defects in ZnO[J]. Phys. B, 2007, 401-402:358-361.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

紫外发光增强的石墨烯-氧化锌纳米复合物

金纳米颗粒等离激元对不同形貌氧化锌薄膜发光性能的调控

Fe掺杂ZnO纳米球的光学特性

新型ZnO纳米针的双光子激射特性

用电化学沉积方法制备钴掺杂的氧化锌薄膜及其光学性质