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Material Sciences 2025
CuInS2/ZnS核/壳量子点与碳点复合结构荧光粉制备与光电性质研究
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Abstract:
本文利用胶体化学法合成红光发射的油相CuInS2/ZnS核/壳量子点。利用3-巯基丙酸对油相CuInS2/ZnS核/壳量子点进行配体交换，实现从油相量子点到水相量子点的转换。将其与绿光发射的亲水性碳点复合，抑制碳点的固态聚集荧光猝灭，并通过引入碳点绿光发射，制备得到近白光发射的CuInS2/ZnS核/壳量子点与碳点的复合结构荧光粉，后利用傅里叶变换红外光谱和X射线光电子谱对其结构与组成进行了表征。并将近白光发射的复合结构荧光粉应用于制备LED照明器件，得到色坐标为(0.4146, 0.4101)的暖白光发射照明器件。
Red-emitting oil-phase CuInS2/ZnS core/shell quantum dots are synthesized by colloidal chemistry. The oil-phase CuInS2/ZnS core/shell quantum dots are converted to water-phase quantum dots through ligand exchange with 3-mercaptopropionic acid. They are then combined with hydrophilic green-emitting carbon dots to suppress the solid-state aggregation quenching of carbon dots. By introducing the green emission of carbon dots, a near-white-emitting composite phosphor of CuInS2/ZnS core/shell quantum dots and carbon dots is prepared. The structure and composition of the phosphor are characterized by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The near-white-emitting composite phosphor is then applied to the fabrication of LED lighting devices, resulting in a warm white light-emitting device with a color coordinate of (0.4146, 0.4101).
| [1] | Amiri, G.R., Fatahian, S. and Mahmoudi, S. (2013) Preparation and Optical Properties Assessment of CdSe Quantum Dots. Materials Sciences and Applications, 4, 134-137. https://doi.org/10.4236/msa.2013.42015 |
| [2] | Baker, D.R. and Kamat, P.V. (2010) Tuning the Emission of CdSe Quantum Dots by Controlled Trap Enhancement. Langmuir, 26, 11272-11276. https://doi.org/10.1021/la100580g |
| [3] | Alemu, Y.A., Albuquerque, G.H. and Herman, G.S. (2018) Enhanced Photoluminescence from CuInS2/ZnS Quantum Dots: Organic Superacid Passivation. Materials Letters, 219, 178-181. https://doi.org/10.1016/j.matlet.2018.02.103 |
| [4] | 董晓菲, 李祥高, 印寿根, 等. I-III-VI量子点光物理和电子性能及其发光二极管应用(英文) [J]. 中国科学: 材料科学, 2024, 67(9): 2737-2748. |
| [5] | He, H., Huang, S., Ma, J., Cui, J. and Zhang, X. (2024) Research Progress on Zinc Sulfide Quantum Dots in Tumor in Vivo Imaging. Open Access Library Journal, 11, e11480. https://doi.org/10.4236/oalib.1111480 |
| [6] | Jia, L., Wang, Y., Nie, Q., Liu, B., Liu, E., Hu, X., et al. (2017) Aqueous-Synthesis of CuInS2 Core and CuInS2/ZnS Core/Shell Quantum Dots and Their Optical Properties. Materials Letters, 200, 27-30. https://doi.org/10.1016/j.matlet.2017.04.082 |
| [7] | Mann, P., Fairclough, S.M., Bourke, S., Burkitt Gray, M., Urbano, L., Morgan, D.J., et al. (2024) Interface Engineering of Water-Dispersible Near-Infrared-Emitting CuInZnS/ZnSe/ZnS Quantum Dots. Crystal Growth & Design, 24, 6275-6283. https://doi.org/10.1021/acs.cgd.4c00528 |
| [8] | 叶明富, 陈丙才, 方超, 等. 碳量子点的制备与应用[J]. 物理化学进展, 2017, 6(3): 128-136. |
| [9] | Hafiz, S.B., Scimeca, M., Sahu, A. and Ko, D. (2019) Colloidal Quantum Dots for Thermal Infrared Sensing and Imaging. Nano Convergence, 6, 1-22. https://doi.org/10.1186/s40580-019-0178-1 |
| [10] | Tao, S., Feng, T., Zheng, C., Zhu, S. and Yang, B. (2019) Carbonized Polymer Dots: A Brand New Perspective to Recognize Luminescent Carbon-Based Nanomaterials. The Journal of Physical Chemistry Letters, 10, 5182-5188. https://doi.org/10.1021/acs.jpclett.9b01384 |
| [11] | Vo, N.T., Ngo, H.D., Do Thi, N.P., Nguyen Thi, K.P., Duong, A.P. and Lam, V. (2016) Stability Investigation of Ligand-Exchanged CdSe/ZnS-Y (Y = 3-Mercaptopropionic Acid or Mercaptosuccinic Acid) through Zeta Potential Measurements. Journal of Nanomaterials, 2016, Article ID: 8564648. https://doi.org/10.1155/2016/8564648 |
| [12] | Yu, H., Shi, R., Zhao, Y., Waterhouse, G.I.N., Wu, L., Tung, C., et al. (2016) Smart Utilization of Carbon Dots in Semiconductor Photocatalysis. Advanced Materials, 28, 9454-9477. https://doi.org/10.1002/adma.201602581 |
| [13] | Hoan, B.T., Tam, P.D. and Pham, V. (2019) Green Synthesis of Highly Luminescent Carbon Quantum Dots from Lemon Juice. Journal of Nanotechnology, 2019, Article ID: 2852816. https://doi.org/10.1155/2019/2852816 |
| [14] | An, Y., Liu, C., Li, Y., Chen, M., Zheng, Y., Tian, H., et al. (2021) Application of High-Efficiency Green Fluorescent Carbon Dots Prepared by Acid Catalysis in Multicolour LEDs. RSC Advances, 11, 38033-38039. https://doi.org/10.1039/d1ra07280c |
