李炎勇，博士，河南大学黄河学者特聘教授。郑州大学理学学士，中国科学院半导体研究所理学硕士，香港理工大学应用物理学博士。主要开展二维半导体物理领域的理论与技术研究。在二维材料的拉曼光谱学, 微纳电子学器件，以及二维材料的激子效应以及光电应用方面取得了一系列研究成果。截止2021年，主导/参与香港研究资助局、香港理工大学和国家基金委等科研项目5项，在Adv. Funt. Mater., Adv. Opt. Mater., 2D Mater., Mater. Today Energy, Chin. Phys. B等SCI期刊上发表论文19篇，单篇最高他引157次，累计引文超过800余次。目前是美国物理学会(APS)和电子电气工程师协会(IEEE)会员，并担任2D Mater. Nanotechnology, J. Phys. Condens. Matter, J. Phys. B, Mater. Des.等国际学术期刊的审稿人，并于2020年被IOP出版社评为杰出评审人。
教育及工作经历：
2005.09-2009.07 郑州大学，物理工程学院，应用物理专业，理学学士；
2009.09-2013.01 中国科学院半导体研究所，超晶格国家重点实验室，凝聚态物理，理学硕士；
2014.01-2017.06 香港理工大学，应用物理学系，应用物理学，博士；
2017.08-2021.09 香港理工大学，应用物理学系，博士后研究员；
2021.10- 至今 河南大学，光伏材料省重点实验室，黄河学者特聘教授。
主要研究领域：
1. 二维材料及其异质结的光学特性；
2. 应力工程调控二维材料的光学以及电学性能；
3. 基于二维半导体材料的器件物理；
4. 低维材料体系下的激子物理。
主要研究成果：
1. 系统地研究了二维范德华层状材料黑磷(black phosphorus)的拉曼振动模。发现沿黑磷的zigzag和armchair特征方向施加单轴应力，不同的声子模式对单轴应力的敏感程度不同，呈现出明显的各向异性。并指出，沿armchair方向应力容易导致黑磷产生层间剪切式位移，故而导致沿面外振动的模式有明显拉曼偏移。实验结果为研究二维黑磷的各向异性迁移率以及热偶系数的存在提供了重要理论依据。
2. 首次利用胶连的聚甲基丙烯酸甲酯在黑磷场效应晶体管(FETs)沟道表面引入表面正电荷。不仅有效保护黑磷场效应晶体管，而且可以实现有效的n型掺杂，调控金半接触的有效肖特基势垒(Schottky barriers)高度。为实现全磷基微电子逻辑器件提供了有力依据。
3. 系统研究了薄层紫磷单晶的激子物理，并验证了薄层紫磷中存在的强三子效应(Trionic effect)是由嵌入晶格的P-Sn-I杂质引入的额外电子而导致。实验结果为研究低维体系中激子物理以及光与物质相互作用提供了有效参考。
主要参与的项目：
1. 香港研究资助局，Pulsed laser deposited amorphous black phosphorus field effect transistors and tis heterostructures, 52.3万港币，2017.01-2020.12，参与；
2. 香港研究资助局，Strain-engineered Atomically Thin Transition Metal dichalcogenides for Solar Energy Funnels, 70.7万港币，2016.01-2018.12，主导；
3. 香港研究资助局，Anisotropic Strain Engineering in Atomically Thin Black phosphorus, 64.9万港币，2017.01-2019.12，主导；
4. 香港理工大学，Novel Materials for Emerging Energy, Electronic and Photonic Devices, 2395 万港币，2016.01-2020.12，参与；
5. 国家基金委面上项目，石墨烯量子点的掺杂研究，80万人民币，2014.01-2017.12，参与。
代表性论文：
1. Yanyong Li, Songhua Cai, Wai Kin Lai, Chenhao Wang, Lukas Rogée, Lyuchao Zhuang, Lingling Zhai, Shenghuang Lin, Mingjie Li and Shu Ping Lau*, Impurity-Induced Robust Trionic Effect in Layered Violet Phosphorus, Adv. Opt. Mater. 2021, 10, 2101538.
2. Shenghuang Lin#, Wai Kin Lai#, Yanyong Li#, Wei Lu, Gongxun Bai, Shu Ping Lau*, Liquid-phase exfoliation of violet phosphorus for electronic applications, SmartMat 2021, 2, 226-233.
3. Lyuchao Zhuang, Lingling Zhai, Yanyong Li, Hui Ren, Mingjie Li and Shu Ping Lau*, Mixed dimensional 0D/3D perovskite heterostructure for efficient green light-emitting diodes, J. Mater. Chem. C 2021, 9, 14318-14326.
4. Yunzhou Xue, Yi Zhang, Huichao Wang, Shenghuang Lin, Yanyong Li, Ji-Yan Dai and Shu Ping Lau*, Thickness-dependent magnetotransport properties in 1T VSe2 single crystals prepared by chemical vapor deposition, Nanotechnology 2020, 31 145712.
5. Long‐Hui Zeng, Qing‐Ming Chen, Zhi‐Xiang Zhang, Di Wu, Huiyu Yuan, Yan‐Yong Li, Wayesh Qarony, Shu Ping Lau, Lin‐Bao Luo, Yuen Hong Tsang*, Multilayered PdSe2/Perovskite Schottky Junction for Fast, Self‐Powered, Polarization‐Sensitive, Broadband Photodetectors, and Image Sensor Application, Adv. Sci. 2019, 6, 1901134.
6. Shenghuang Lin#, Yanyong Li#, Jiasheng Qian#, Shu Ping Lau*, Emerging opportunities for black phosphorus in energy applications, Mater. Today Energy 2019, 12, 1-25.
7. Yanyong Li#, Shenghuang Lin#, Yanghui Liu, Yang Chai, Shu Ping Lau*, Tunable Schottky barriers in ultrathin black phosphorus field effect transistors via polymer capping, 2D Mater. 2019, 6, 024001.
8. Shenghuang Lin, Yang Liu, Zhixin Hu, Gongxun Bai, Yanyong Li, Huiyu Yuan, Yunzhou Xue, Lukas Rogee, Jianhua Hao, Xuming Zhang* and Shu Ping Lau*, Enhancement of photo-electrochemical reactions in MAPbI3/Au, Mater. Today Energy 2018, 9, 303-310.
9. Longhui Zeng, Shenghuang Lin, Zhenhua Lou, Huiyu Yuan, Hui Long, Yanyong Li, Wei Lu, Shu Ping Lau, Di Wu and Yuen Hong Tsang*, Ultrafast and sensitive photodetector based on a PtSe2/silicon nanowire array heterojunction with a multiband spectral response from 200 to 1550 nm, NPG Asia Mater. 2018, 10, 352-362.
10. Shenghuang Lin, Yang Liu, Zhixin Hu, Wei Lu, Chun Hin Mak, Longhui Zeng, Jiong Zhao, Yanyong Li, Feng Yan, Yuen Hong Tsang, Xuming Zhang, Shu Ping Lau*, Tunable active edge sites in PtSe2 films towards hydrogen evolution reaction, Nano Energy 2017, 42, 26-33.
11. Shenghuang Lin, Ying San Chui, Yanyong Li, Shu Ping Lau*, Liquid-Phase Exfoliation of Black Phosphorus and its Applications, FlatChem 2017, 2, 15.
12. Shenghuang Lin#, Yanyong Li#, Wei Lu#, Ying San Chui, Lukas Rogée, Qiaoliang Bao and Shu Ping Lau*, In situ observation of the thermal stability of black phosphorus, 2D Mater. 2017, 4, 025001.
13. Yanyong Li, Shenghuang Lin, Ying San Chui and Shu Ping Lau*, Effect of Uniaxial Strain on Low Frequency Raman Modes in Few Layers Molybdenum Disulfide, ECS J. Solid State Sci. Technol. 2016, 5, Q3033.
14. Yanyong Li#, Zhixin Hu#, Shenghuang Lin, Sin Ki Lai, Wei Ji, Shu Ping Lau*, Giant Anisotropic Raman Response of Encapsulated Ultrathin Black Phosphorus by Uniaxial Strain, Adv. Funct. Mater. 2016, 27, 1600986.
15. Shenghuang Lin, Shenghua Liu, Zhibin Yang, Yanyong Li, Tsz Wai Ng, Zaiquan Xu, Qiaoliang Bao, Jianhua Hao, Chun-Sing Lee, Charles Surya, Feng Yan*, Shu Ping Lau*, Solution-Processable Ultrathin Black Phosphorus as an Effective Electron Transport Layer in Organic Photovoltaics, Adv. Funct. Mater. 2016, 26, 864-871.
16. Sin Ki Lai, Chao Xie, Kar Seng Teng, Yanyong Li, Furui Tan, Feng Yan, Shu Ping Lau*, Polymeric Carbon Nitride Nanosheets/Graphene Hybrid Phototransistors with High Responsivity, Adv. Opt. Mater. 2016, 4, 555-561.
17. YuFei Cao, YanYong Li, YuanYuan Li, GuanNan Wei, Yang Ji, KaiYou Wang*, Magnetic coupling in ferromagnetic semiconductor GaMnAs/AlGaMnAs bilayer devices, Sci. China Phys. Mech. 2014, 57, 1471-1475.
18. Yuanyuan Li, Y. F. Cao, G. N. Wei, Yanyong Li, Y. Ji, K. Y. Wang*, K. W. Edmonds, R. P. Campion, A. W. Rushforth, C. T. Foxon and B. L. Gallagher, Anisotropic current-controlled magnetization reversal in the ferromagnetic semiconductor (Ga,Mn)As, Appl. Phys. Lett. 2013, 103, 022401.
19. Yan-Yong Li, Hua-Feng Wang, Yu-Fei Cao and Kai-You Wang*, Annealing effect on magnetic anisotropy in ultrathin (Ga,Mn)As, Chin. Phys. B 2013, 22, 027504.
邮箱：yanyongli@henu.edu.cn
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