课题组近年来主要开展铁电外延薄膜的生长制备、非线性光学与超快动力学表征、以及太赫兹与集成光子学器件研究。迄今以第一、通讯作者身份在Nature、Nature Physics、Nat. Commun.、Light Sci. Appl.、Adv. Mater.等国际高水平期刊上发表论文40余篇，在Science、Nature Materials等期刊上合作发表论文80余篇，申请发明专利5项（已授权2项）。课题组承担教育部稳定支持计划项目、国家自然科学基金区域联合重点项目、原创探索计划项目、面上项目（两项）、北京市基金委杰青等重要科研项目，以及中核集团等企业横向研发项目。课题组现拥有氧化物分子束外延、脉冲激光沉积、射频磁控溅射、钛宝石飞秒放大激光器、强场太赫兹超快光谱、微波光子测试平台等多套自主设计搭建的光电测试装置，并与国内外X射线自由电子激光、同步辐射、超快电子衍射大科学装置建立了稳定的合作联系。课题组多名博士生入选国自然优秀博士生基金项目、中国科协青托博士生专项，以及获得国家奖学金等荣誉奖励。每年可招收1-2名博士生，长期欢迎博士后加入本组。
近期代表性论文如下，完整列表详见ResearchGate (https://www.researchgate.net/profile/Qian-Li-176)：
(1) Q. Li, H. Wen* et al; Subterahertz collective dynamics of polar vortices, Nature, (2021) 592, 376
(2) W. Li, S. Wang, P. Peng, H. Han, X. Wang#, J. Ma, J. Luo, J.-M. Liu, J.-F. Li, C.-W. Nan, Q. Li*; Terahertz excitation of collective dynamics of polar skyrmions over a broad temperature range; Nature Physics (2025) 21, 1965
(3) C. Deng, Y. He, W. Yang, H. Yu, Z. Hong, H. Liu, H. Han, W. Li, Y. Ma, Z. Zhang, Y. Wu, J. Ma, B. Xiong, C. Sun*, R. Yu, J.-F. Li, J. Zhou, Y. Luo, Q. Li*; Self-buffered epitaxy of barium titanate on oxide insulators enables high-performance electro-optic modulators; Light: Science & Applications (2025) 15, 21
(4) S. Wang; W. Li; C. Deng; Z. Hong; H. Gao; X. Li; Y. Gu; Q. Zheng; Y. Wu; P.G. Evans; J.-F. Li; C.-W. Nan; Q. Li*; Giant electric field induced second harmonic generation in polar skyrmions, Nature Communications (2024) 15, 1374
(5) H. Yu, N. Guo, C. Deng*, H. Han, W. Li, C. Lebudi, S. Wang, Y. Li, Y. Chen, S. Peng, J. Zhang, J. Ma, Q. Zheng*, J.-F. Li*, Qian Li*. Tuning the electro-optic properties of BaTiO3 epitaxial thin films via buffer layer-controlled polarization rotation paths. Advanced Functional Materials (2024), 34, 2315579
(6) Z. Du, Y. Lai, R. Bai, B. Wang, Q. Zheng, C. Xu, T. Lu, J. Pei, W. Li, Y.-N. Wu*, K. Liu, Y. Liu, E. Fu, J.-F. Li*, Y. Yang*, Q. Li*; Robust Thermal Neutron Detection by LiInP2Se6 Bulk Single Crystals; Advanced Materials (2023) 35, 2212213
(7) H. Han, W. Li, S. Tang, Y. Wang, Z. Xu, H. Chen, J. Gu, J. Wang, D. Yi, L. Gu, H. Huang, C.-W. Nan, Q. Li*, J. Ma*; Electric field-manipulated optical chirality in ferroelectric vortex domains; Advanced Materials (2024) 36, 2408400.
(8) Q. Li*, J. Sun*; Twisted light with a designed polar topology; Nature Nanotechnology (2025) 20, 859
(9) W. Li, L. Liao, C. Deng, C. Lebudi, J. Liu, S. Wang, D. Yi, L. Wang*, J.-F. Li*, Q. Li*; Artificial domain patterning in ultrathin ferroelectric films via modifying the surface electrostatic boundary conditions; Nano Letters (2024) 24, 5010
(10) W. Zhang, X. Mou, Y. Ma, Y. Zheng, S. Wang, L. Shu, Z. Du, C. Deng, Q. Yang*, R. Yu*, J.-F. Li*, Q. Li*; Phase coexistence induced giant dielectric tunability and electromechanical response in PbZrO3 epitaxial thin films; Small (2025) 202410260
(11) H. Sha, Y. Zhang, Y. Ma, W. Li, W. Yang, J. Cui, Q. Li*, H. Huang*, R. Yu*; Polar vortex hidden in twisted bilayers of paraelectric SrTiO3; Nature Communications (2024) 15, 10915.
(12) H. Sha, Y. Ma, G. Cao, J. Cui, W. Yang, Q. Li*, R. Yu*; Subnanometer-scale mapping of crystal orientation and depth-dependent structure of dislocation cores in SrTiO3; Nature Communications (2023) 14, 162
(13) W. Li&, Y. Ma, T. Feng, Z. Du, Y. Liu, S. V. Kalinin, J.-F. Li*, Q. Li*; Delineating complex ferroelectric domain structures via second harmonic generation spectral imaging; Journal of Materiomics (2023), 9, 395
(14) Q. Li*, B. Wang, Q. He, P. Yu, L.-Q. Chen, S.V. Kalinin*, J.-F. Li*; Ferroelastic Nanodomain-Mediated Mechanical Switching of Ferroelectricity in Thick Epitaxial Films; Nano Letters (2021) 21, 445
(15) Q. Li*, C. T. Nelson, S.-L. Hsu, A. R. Damodaran, A. K. Yadav, M. McCarter, L. W. Martin, R. Ramesh, S. V. Kalinin; Quantification of flexoelectricity in PbTiO3/SrTiO3 superlattice polar vortices using machine learning and phase-field modeling; Nature Communications (2017) 8, 1468