Preparation and application of micron-sized ZnS-Qds@ polysiloxane core-shell light diffusion hybrid microspheres

LUO Peidong; ZHAO Cheng; LUO Qiuping; ZHANG Qiang; YAN Feifei

doi:10.13801/j.cnki.fhclxb.20220516.005

Volume 40 Issue 3

Mar. 2023

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Article Navigation > Acta Materiae Compositae Sinica > 2023 > 40(3): 1438-1445

LUO Peidong, ZHAO Cheng, LUO Qiuping, et al. Preparation and application of micron-sized ZnS-Qds@ polysiloxane core-shell light diffusion hybrid microspheres[J]. Acta Materiae Compositae Sinica, 2023, 40(3): 1438-1445. doi: 10.13801/j.cnki.fhclxb.20220516.005

Citation:

LUO Peidong, ZHAO Cheng, LUO Qiuping, et al. Preparation and application of micron-sized ZnS-Qds@ polysiloxane core-shell light diffusion hybrid microspheres[J]. Acta Materiae Compositae Sinica, 2023, 40(3): 1438-1445. doi: 10.13801/j.cnki.fhclxb.20220516.005

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Preparation and application of micron-sized ZnS-Qds@ polysiloxane core-shell light diffusion hybrid microspheres

doi: 10.13801/j.cnki.fhclxb.20220516.005

Ningbo DXC New material Technology CO., LTD., Ningbo 315321, China

Received Date: 2022-02-28
Accepted Date: 2022-05-01
Rev Recd Date: 2022-04-20

Available Online: 2022-05-17

Publish Date: 2023-03-15

Abstract

Abstract

In liquid crystal backlight module, diffusion film is usually used to improve the scattering effect of light and improve the utilization rate of light. Light scattering particles are the main factors affecting the transmittance and haze of light scattering materials. Because of its good thermal stability and dimensional stability, particle size and refractive index can be adjusted by reaction, organosilicon microspheres have a very broad application prospect as light diffusion particles in light diffusion materials. Micron-sized ZnS-Qds@polysiloxane core-shell light-diffusion hybrid microspheres were prepared by precipitating a layer of ZnS quantum dot (ZnS-Qds) coated with mercapto polysiloxane on polysiloxane microspheres prepared by sol-gel method. Light diffusion films with different mass fractions of the hybrid microspheres added were prepared. The prepared hybrid materials were characterized by TEM, TEM mapping, fluorophotometer and other testing methods, also tested the optical properties of the light diffusion films prepared with hybrid particles. The results show that ZnS-Qds@polysiloxane light diffusion hybrid microspheres have a core-shell structure with an average particle size of 3.6 μm and an average shell thickness of 87.4 nm. Zns-Qds with an average particle size of 2 nm are uniformly dispersed in the shell layer. The particles are added to the acrylic resin and coated on the polyethylene terephthalate (PET) films to make light diffusion films. The experimental results show that when the added amount of hybrid particles increases from 0wt% to 20wt%, the haze of light diffusion films is greatly improved from 1.67% to 91.11%, but the transmittance of light diffusion films is only slightly reduced from 90.10% to 82.57%.
- organosilicon microspheres,
- ZnS quantum dots,
- quantum dot hybrid core-shell microspheres,
- light diffusion films,
- haze
Long Abstrsct
Innovation Points

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References(25)

References

[1]	NISHIZAWA M, SEKIYA K, KAWAKAMI T, et al. Synthesis and optical property analysis of novel anisotropic light diffusing film[J]. Bulletin of the Chemical Society of Japan,2012,85(7):839-841. doi: 10.1246/bcsj.20110379
[2]	王乐, 吴弼卿, 李晚艳. 光学薄膜对LED出光效率影响的研究进展[J]. 材料科学与工程学报, 2011, 29(4):647-654. WANG L, WU B Q, LI W Y. Research progress on the effect of optical film on the luminous efficiency of LED[J]. Jour-nal of Materials Science and Engineering,2011,29(4):647-654(in Chinese).
[3]	FIRMANSYAH D A, KIM S Q, LEE K S. Micro-structure-controlled aeroso-gel synthesis of ZnO quantum dots dispersed in SiO₂ nanospheres[J]. Langmuir,2012,28(5):2890-2896. doi: 10.1021/la203730a
[4]	雷帅. 有机硅微球与光散射材料的制备及其结构性能研究[D]. 深圳: 深圳大学, 2019. LEI S. Preparation and structural properties of organosilicon microspheres and light-scattering materials[D]. Shenzhen: Shenzhen University, 2019(in Chinese).
[5]	CALVO M E, MÍGUEZ H. Flexible, adhesive, and biocompatible bragg mirrors based on polydimethylsiloxane infiltrated nanoparticle multilayers[J]. Chemistry of Materials,2010,22(13):3909-3915. doi: 10.1021/cm1001016
[6]	SÁNCHEZ O, CALVO M E, MÍGUEZ H. Versatility and multifunctionality of highly reflecting Bragg mirrors based on nanoparticle Multilayers[J]. Journal of Materials Che-mistry,2010,20(38):8240. doi: 10.1039/c0jm01508c
[7]	钟熙. 水热法制备光扩散杂化微球及其在光扩散膜中的应用[D] . 南京: 东南大学, 2018. ZHONG X. Preparation of photodiffusion hybrid microspheres by hydrothermal method and its application in photodiffusion films[D]. Nanjing: Southeast University, 2018(in Chinese).
[8]	BU X B, LI D X, ZHANG Z W, et al. Facile fabrication of ZrO2@PMMA@polysiloxane nanohybrids and their application for light diffusing films[J]. Micro & Nano Letters,2019,14(4):349-352.
[9]	LEE K S, JEON B, CHA S W. Development of a multilayered optical diffusion sheet using microcellular foaming technology[J]. Polymer-Plastics Technology and Engineering,2011,50(1):102-111. doi: 10.1080/03602559.2010.531418
[10]	ASTM. Standard test method for haze and luminous transmittance of transparent plastics: ASTM D1003-2013[S]. West Conshohocken: ASTM, 2013.
[11]	WANG H, XIE K, YOU Y, et al. Realizing interfacial electronic interaction within ZnS quantum dots/N-rGO heterostructures for Efficient Li–CO₂ Batteries[J]. Advanced Energy Materials,2019,9(34):1901806. doi: 10.1002/aenm.201901806
[12]	BIN C, HUAN L, XIN Z, et al. MOF-derived ZnS nanodots/Ti₃C₂T_x MXene hybrids boosting superior lithium storage performance[J]. Nano-Mirco Lett, 2021, 13(202): 6-8.
[13]	MOON H, LEE C M, LEE W, et al. Stability of quantum dots, quantum dot films, and quantum dot light-emitting diodes for display applications.[J]. Advanced Materials (Deerfield Beach, Fla. ),2019,31(34):1804294. doi: 10.1002/adma.201804294
[14]	李云凤, 倪志华, 柯轶. 巯基乙胺为稳定剂制备水溶性荧光量子点的合成探究[J]. 山东化工, 2020, 49(8):45-47. doi: 10.3969/j.issn.1008-021X.2020.08.015 LI Y F, NI Z H, KE Y. Synthesis of water-soluble fluorescent quantum dots using mercaptoethylamine as stabilizer[J]. Shandong Chemical Industry,2020,49(8):45-47(in Chinese). doi: 10.3969/j.issn.1008-021X.2020.08.015
[15]	江波, 黄麒, 卢强, 等. MPA稳定的CdTe量子点合成及Cu²⁺检测应用[J]. 中国药科大学学报, 2017, 48(3):311-316. doi: 10.11665/j.issn.1000-5048.20170310 JIANG B, HUANG Q, LU Q, et al. Synthesis and Cu²⁺ detection of CdTe quantum dots stabilized by MPA[J]. Journal of China Pharmaceutical University,2017,48(3):311-316(in Chinese). doi: 10.11665/j.issn.1000-5048.20170310
[16]	张小波, 宋宏伟, 于立新, 等. 退火对ZnS纳米晶结构相变及发光的影响[J]. 发光学报, 2004, 1:67-71. doi: 10.3321/j.issn:1000-7032.2004.01.014 ZHANG X B SONG H W, YU L X, et al. Effect of annealing on phase transformation and luminescence of ZnS nanocrystals[J]. Chinese Journal of Luminescence,2004,1:67-71(in Chinese). doi: 10.3321/j.issn:1000-7032.2004.01.014
[17]	张丹, 宋溪明, 梁福鑫, 等. 核壳结构PAM-ZnS纳米杂化微球的制备研究[J]. 高等学校化学学报, 2005(11):202-204, 10. ZHANG D, SONG X M, LIANG F X, et al. Preparation of pam-ZNs nanohybrid micro-spheres with core-shell structure[J]. Chemical Journal of Chinese Universities,2005(11):202-204, 10(in Chinese).
[18]	陈平清, 王春晓, 张小风. Mn掺杂ZnS纳米晶的制备及发光性能研究[J]. 化工时刊, 2021, 35(1):1-8. CHEN P Q, WANG C X, ZHANG X F. Preparation and luminescence properties of Mn doped ZnS nanocrystals[J]. Chemical Industry Times,2021,35(1):1-8(in Chinese).
[19]	杜继红, 张冰, 孙明烨. CuInS₂/ZnS核/壳量子点的制备及其光致发光器件[J]. 科技与创新, 2019(5):32-34. DU J H, ZHANG B, SUN M Y. Fabrication of CuInS2/ZnS core/shell quantum dots and their photoluminescence devices[J]. Science and Technology Innovation,2019(5):32-34(in Chinese).
[20]	宁平凡, 刘宏伟, 牛萍娟, 等. SiO₂钝化提高CdSe/ZnS量子点的发光稳定性[J]. 发光学报, 2018, 39(2): 109-114. NING P F, LIU H W, NIU P J, et al. Enhancement of photo-stability of colloidal CdSe/ZnS quantum dots passivated in SiO₂[J]. Chinese Journal of Luminescence, 2018, 39(2): 109-114(in Chinese).
[21]	胡金刚. LCD背光模组用新型抗老化光扩散膜的设计、制备及性能研究[D]. 南京: 东南大学, 2015. HU J G. Design, preparation and properties of a novel anti-aging light diffusion film for LCD backlight module[D]. Nanjing: Southeast University, 2015(in Chinese).
[22]	周维祥. 塑料测试技术[M]. 北京: 化学工业出版社, 1997. ZHOU W X. Plastics testing technology[M]. Beijing: Chemical Industry Press, 1997(in Chinese).
[23]	SREENIVASULU B, RAMA S B, VENKATRAMANA R S, et al. Synthesis and lumine luminescence properties of chemically synthesized ZnS nanomaterials[J]. Ferroelectrics,2021,577(1):91-98. doi: 10.1080/00150193.2021.1916353
[24]	KULYK B, KAPUSTIANYK V, TSYBULSKYY V, et al. Optical properties of ZnO/PMMA nanocomposite films[J]. Jour-nal of Alloys and Compounds,2010,502(1):24-27. doi: 10.1016/j.jallcom.2010.04.162
[25]	MANJUNATHA K B, DILEEP R, UMESH G, et al. All optical nonlinear and switching characteristics of a novel ruthenium complex[J]. Optical Materials,2014,36(6):1054-1059. doi: 10.1016/j.optmat.2014.01.029