高级检索
无机材料学报

无机材料学报 ›› 2026, Vol. 41 ›› Issue (1): 105-112.DOI: 10.15541/jim20250121 CSTR: 32189.14.jim20250121

• 研究论文 • 上一篇    下一篇

飞秒激光调控CdS量子点玻璃的发光性能

袁子豪1,2(), 许银生1(), 李昕阔2,3, 谭德志2,3()   

  1. 1.武汉理工大学 硅酸盐科学与先进建材全国重点实验室, 武汉 430070
    2.浙江大学 光电科学与工程学院, 极端光学技术与仪器全国重点实验室, 杭州 310028
    3.浙江大学 材料科学与工程学院, 杭州 310058
  • 收稿日期:2025-03-24 修回日期:2025-04-27 出版日期:2026-01-20 网络出版日期:2025-06-05
  • 通讯作者: 许银生, 研究员. E-mail: xuyinsheng@whut.edu.cn;
    谭德志, 研究员. E-mail: wctdz@zju.edu.cn
  • 作者简介:袁子豪(2001-), 男, 硕士研究生. E-mail: yuanzihao19@163.com
  • 基金资助:
    国家自然科学基金(62275233);国家自然科学基金(U2241236)

Femtosecond Laser Modulation on Luminescence Properties of CdS Quantum Dot Glasses

YUAN Zihao1,2(), XU Yinsheng1(), LI Xinkuo2,3, TAN Dezhi2,3()   

  1. 1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
    2. State Key Laboratory of Extreme Optical Technology and Instrument, School of Optoelectronic Science and Engineering, Zhejiang University, Hangzhou 310028, China
    3. School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China
  • Received:2025-03-24 Revised:2025-04-27 Published:2026-01-20 Online:2025-06-05
  • Contact: XU Yinsheng, professor. E-mail: xuyinsheng@whut.edu.cn;
    TAN Dezhi, professor. E-mail: wctdz@zju.edu.cn
  • About author:YUAN Zihao (2001-), male, Master candidate. E-mail: yuanzihao19@163.com
  • Supported by:
    National Natural Science Foundation of China(62275233);National Natural Science Foundation of China(U2241236)

RichHTML

1

PDF (PC)

69

摘要：

CdS量子点具有量子尺寸效应, 通过调控尺寸可调控其光致发光波长, 在微纳光学器件制备等领域具有潜在应用价值。随着超快激光技术的发展, 飞秒激光逐渐被用于光电材料的微纳制造和光学性质调控, 然而, 利用飞秒激光调控CdS量子点发光调谐尚未实现。本工作利用飞秒激光直写技术制备基于玻璃基质的CdS量子点及调控其发光性能, 并探究其在光存储和信息加密等领域的应用。采用熔融淬火法制备了5组不同含量CdS的硼硅酸盐玻璃, 并对玻璃样品进行了精细抛光, 用于后续的飞秒激光加工。因飞秒激光产生的局部热积累效应, CdS量子点可直接在玻璃内部诱导析出, 通过透射电子显微镜表征分析其形貌、微观结构尺寸和分散性。本研究通过系统改变激光参数来调控析出量子点光斑的尺寸和形貌, 实现了激光诱导加工光斑尺寸5.33~12.28 μm范围的连续调控以及发光波长在540~610 nm范围内的调谐。最后, 还展示了飞秒激光直写CdS量子点在信息加密和信息存储等领域的应用。

关键词: CdS量子点, 飞秒激光, 硼硅酸盐玻璃, 激光诱导

Abstract:

CdS quantum dots have a quantum size effect, while photoluminescence wavelength can be regulated by manipulating their sizes, both of which show application potentials in many fields such as fabrication of micro-nano optical devices. With the development of ultrafast laser technology, femtosecond lasers have gradually been delved in the micro-nano manufacturing and optical property regulation of the optoelectronic materials. However, photoluminescence modulation of CdS quantum dots by the femtosecond lasers has never been achieved. This work aims at preparation and photoluminescence modulation of CdS quantum dots based on glass matrix by using femtosecond laser direct writing, and explores their applications in fields such as optical storage and information encryption. In the experiment, five groups of borosilicate glasses with different CdS contents were prepared via a melt quenching method, and the glass samples were finely polished for the subsequent femtosecond laser processing. Due to the local thermal accumulation effect generated by the femtosecond laser, CdS quantum dots can be directly written and precipitate inside the glass. Morphology, microstructure size and dispersion of CdS quantum dots precipitated inside the glass were analyzed by transmission electron microscopy. By changing the laser parameters to regulate size of the precipitated quantum dot spot, continuous regulation of the spot size of laser-induced processing within the range of 5.33-12.28 μm and modulation of the emission wavelength within the range of 540-610 nm were achieved. Finally, it was demonstrated that femtosecond lasers could direct write on the CdS quantum dots in fields such as information encryption and storage.

Key words: CdS quantum dot, femtosecond laser, borosilicate glass, laser induction

中图分类号: