Dr. Usman is currently an associate Professor at Department of material science and technology, Zhejiang Sci-Tech University. He did his postdoc from Low Dimensional Materials and Devices (LDMD), at Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University. Dr. Usman Khan has obtained his M.Phil. degree from University of the Punjab, Lahore during 2012 and Ph.D. degree from University of Chinese Academy of Sciences (Institute of Physics) in 2017. Then he carried out post-doc research at Low Dimensional Materials and Devices (LDMD), at Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University (Shenzhen, 2017-2020), working on the growth of Two-Dimensional (2D) materials (scalability, stability and large size growth). He has more than 45 publications with citation over 700, including publications as first author/co-first author in Nature Communications, ACS Nano, Advanced Functional Materials, Small, Nanoscale, Applied Physics Letters, Physical Review B, Advanced Electronic Materials, and has 1 patent, etc.

Education

PhD:          University of Chinese Academy of Sciences

Doctor of Philosophy from Institute of Physics with title in Condensed Matter Physics (2017) Beijing,

Research Focus: Optoelectronics; Perovskite Semiconductors; Magnetic Storage Devices; Rams.

M.Phil:       University of the Punjab

M.Phil. in Solid State Physics (September 2012) Lahore, Pakistan.

Relevant courses: Fundamentals of Micro & Nanotechnology, Solid-State Physics, Semiconducting Physics, Fabrication of Nanodevices, TF Technology, Magnetism, Defects in Solids, and XRD.

MSc:           University of Gujrat

Master of Science in Physics (September 2009) Gujrat, Pakistan.

Relevant courses: Quantum Mechanics, Solid State Physics, Computational Physics, Electronics.

Experience

Funding and Recent Project

National Natural Science Foundation of China (NSFC) for one-year category of “International (Regional) Cooperation and Exchange Projects”; Research Fund for International Young Scientists; Grant No: 51950410577.

Optoelectronics: Optoelectronic device fabrication, characterization, and analysis; Growth and characterization of semiconducting thin-films for electronic devices such as FETs, MOFETs, Photodetectors, Phototransistors, Invertors, etc.

Other Projects: (1) Handling of nano- and micro-fabrication lab including optic, electronics, and opto-electronic device fabrication and measurements at low and room temperature. (2) Device Application includes, Field Effect Transistors, Photodetectors, Phototransistors, memristors. (3) Magnetic measurements of nanostructures, Magnetization, Coercivity, Anisotropy analysis. (4) Low temperature magnetic measurements including zero field cooled and field cooled curves, Graphists phases, superparamagnetism, spin glass behavior, etc.

Awards and Achievements

Skills and Tools

Growth and Synthesis: PVD, CVD, MOCVD, Sputtering, Thermal coating, Sol-gel, Electro-deposition, Wet chemistry.

More precisely field specialization includes;

1.  Chemical vapor deposition (CVD) and physical vapor deposition (PVD) growth of nanosheets, and nanorods.

2.  Growth of 2D materials, including MoS₂, WS₂, Bi₂O₂Se, Graphene, h-BN etc.

3.  Growth of 1D nanowires, nanotubes, core-shell nanostructures.

4.  Growth of Ferrite nanoparticles (Soft and Hard ferrites).

Tools and Measurements: Device Fabrication (10-year experience), Optical Lithography (5-year experience), Electron beam Lithography (not expert, basic knowledge), Laser writer (2-year experience), four probe station (10-year experience), Vibrating Sample Magnetometer (5 year experience), Physical Property Measurement system (PPMS, 5-year experience), Superconducting Quantum Interference Device (SQUID, 5-year experience), Optical Microscopies including Scanning Electron and Transmission Electron Microscopy (6-year experience). Raman Spectroscopy, UV, IV and ellipsometry, Vicker Hardness Tester, Electrical Analyses by Cryostat, Chemical Lab. X-ray Diffraction (XRD), etc.

Computer: Macintosh & Windows operating systems, 3DS MAX, Adobe Photoshop, Labview, LaTex, Origin Lab, MATLAB, Morphological analyses with Digital micrograph, ImageJ, Structural analyses with MDI Jade, FullProof, PCPDFWIN, X’Pert Highscore plus, Crystal Match, Reports on MS-Word, MS-Excel, MS-Power Point.

Language: Fluent in English and Urdu and Punjabi. Can also speak Chinese (intermediate), and Arabic (Basic).

Patent

授权公告日：2020-07-31,专利申请日：2018-12-19,专利名称：一种二维铋氧硒原子晶体材料、及其制备方法和用途,专利类型：发明专利,专利号：ZL 2018 1 1566870.X,发明人：成会明，乌斯曼·汗，唐磊，罗雨婷，刘碧录,专利权利人：清华-伯克利深圳学院筹备办公室,是否代表作.

Publication

First Author and Corresponding Author (*) Publications

1.        Usman Khan, Lei Tang, Baofu Ding, Luo Yuting, Simin Feng, Wenjun Chen, Muhammad Jahangir Khan, Bilu Liu, and Hui-Ming Cheng, Catalyst-Free Growth of Atomically-thin Bi₂O₂Se Nanoribbons for High-performance Electronics and Optoelectronics, Advanced Functional Materials, 10.1002/adfm.202101170, 2021. IF=16.83

2.        Wenjun Chen, ^‡ Usman Khan, ^‡ Simin Feng, Ding Baofu, Xiaomin Xu, Bilu Liu, High-Fidelity Transfer of 2D Bismuth Oxyselenide and its Mechanical Properties, Advanced Functional Materials, 30 (2020) 2004960. IF=16.83

^‡ equal contributor.

3.        Rizwan Ur Rehman Sagar,^‡ Usman Khan,^‡ Massimiliano Galluzzi, Sehrish Aslam, Adeela Nairan, Tauseef Anwar, Waqas Ahmad, Min Zhang, and Tongxiang Liang, Transfer-free Growth of Bi₂O₂Se on Silicon Dioxide via Chemical Vapor Deposition, ACS Applied Electronic Materials, 2 (2020) 2123.

^‡ equal contributor.

4.        Usman Khan, Yuting Luo, Lei Tang, Changjiu Teng, Jiaman Liu, Bilu Liu, and Hui-Ming Cheng, Controlled Vapor- Solid Deposition of Millimeter-Size Single Crystal 2D Bi₂O₂Se for High Performance Phototransistors, Advanced Functional Materials, 29 (2019) 1807979. IF=16.83

5.        U. Khan, N. Adeela, S. Naz, M. Irfan, K. Khan, RUR. Sagar, S. Aslam, and Dang Wu, Synthesis and low temperature magnetic measurements of polycrystalline Gadolinium nanowires, Materials Letters, 228 (2018) 266. IF=3.204

6.        N. Adeela, U. Khan,* S. Naz, and M. Iqbal, Role of Ni concentration on structural and magnetic properties of inverse spinel Ferrite, Materials Research Bulletin, 107 (2018) 60. IF=4.019

7.        U. Khan, N. Adeela, M. Irfan, S. Riaz, S. Naseem, H. Ali and X. F. Han, Temperature mediated morphological and magnetic phase transitions of Iron/Iron Oxide Core/Shell nanoparticles, Journal of Alloys and Compounds, 696 (2017) 362. IF=4.65

8.        N. Adeela, U. Khan,* S. Naz, and M. Iqbal, M. Irfan, and Y. Chang, Low temperature nucleation of Griffiths Phase in Co doped LaMnO₃ nanostructures, Applied Surface Science, 422 (2017) 184. IF=6.18

9.        U. Khan, W. J. Li, N. Adeela, M. Irfan, K. Javed, C. H. Wan, S. Riaz and X. F. Han, Magnetic response of hybrid ferromagnetic and antiferromagnetic core–shell nanostructures, Nanoscale, 8 (2016) 6064. IF=6.89

10.     U. Khan, M. Irfan, W. J. Li, N. Adeela, L. Pan, Q. T. Zhang and X. F. Han, Diameter dependent multiferroic functionality in hybrid Core/Shell NWs, Nanoscale, 8 (2016) 14956. IF=6.89

11.     U. Khan, N. Adeela, Wenjing Li, M. Irfan, K. Javed and X. F. Han, Fabrication, morphological, structural and magnetic Properties of Electrodeposited Fe₃Pt Nanowires and Nanotubes, Journal of Magnetism and Magnetic Materials, 424 (2016) 410. IF=2.717

12.     U. Khan, N. Adeela, C. H. Wan, M. Irfan, S. Naseem, S. Riaz, M. Iqbal and X. F. Han, Response of iron oxide on hetero- nanostructures of soft and hard ferrites, Superlattices and Microstructures, 92 (2016) 374. IF=2.12

13.     U. Khan, N. Adeela, K. Javed, S. Riaz, H. Ali, M. Iqbal, X. F. Han, S. Naseem, Influence of Cobalt doping on structural and magnetic properties of BiFeO₃ nanoparticles, Journal of Nanoparticle Research, 17 (2015) 429. IF=2.132

Collaborative Publications

14.     N. Adeela, L. Caiwu, S.W. Chiang, Yi Wu, P. Zou, U. Khan, J. Wu, Y. Cheng, Proton Selective Adsorption on Pt-Ni Nano-thorn Array Electrodes for Superior Hydrogen Evolution Activity, Energy and Environmental Science, 14 (2021) 1594. IF=30.28

15.     Simin Feng, Junyang Tan, Shilong Zhao, Shuqing Zhang, Usman Khan, Lei Tang, Xiaolong Zou, Junhao Lin, Hui-Ming Cheng, Bilu Liu, Synthesis of ultrahigh-quality monolayer molybdenum disulfide through in-situ defect healing with thiol molecules, Small, 16 (2020) 2003357. IF=11.459

16.     Yuting Luo, Shuqing Zhang, Haiyang Pan, Shujie Xiao, Zenglong Guo, Lei Tang, Usman Khan, Bao-Fu Ding, Meng Li, Zhengyang Cai, Yue Zhao, Wei Lv, Qingliang Feng, Xiaolong Zou, Junhao Lin, Hui-Ming Cheng, and Bilu Liu, Unsaturated Single Atoms on Monolayer Transition Metal Dichalcogenides for Ultrafast Hydrogen Evolution, ACS nano, 14 (2020) 767. IF=14.588

17.     M. Tahir, Saira Riaz, Usman Khan, S. Sajjad Hussain, Adeela Nairan, Aseya Akbar, Murtaza Saleem, Shahid Atiq, Shahzad Naseem, Enhanced structural and magnetic ordering in as-synthesized Ca doped bismuth iron oxide nanoceramics, Journal of Alloys and Compounds, 832 (2020) 154725. IF=4.65

18.     Jiaman Liu, Liwei Yu, Xingke Cai, Usman Khan, Zhengyang Cai, Jingyu Xi, Bilu Liu, and Feiyu Kang, Sandwiching continuous CVD-grown h-BN monolayer films between SPEEK and Nafion for Proton Exchange Membranes, ACS Nano, 13 (2019) 2094. IF=14.588

19.     Yuting Luo, Lei Tang, Usman Khan, Qiangmin Yu, Hui-Ming Cheng, Xiaolong Zou, Bilu Liu, Morphology and Surface Chemistry Engineering for pH - Universal Catalysts toward Hydrogen Evolution At large Current Density, Nature Communications, 10 (2019) 269. IF=12.121

20.     Lei Tang, Changjiu Teng, Yuting Luo, Usman Khan, Haiyang Pan, Zhengyang Cai, Yue Zhao, Bilu Liu, and Hui-Ming Cheng, Confined van der Waals Epitaxial Growth of Two-Dimensional Large Single-Crystal In₂Se₃ for Flexible Broadband Photodetectors, AAAS Research, 2019 (2019) 10. IF=Not assigned yet.

21.     Karim Khan, Ayesha Khan Tareen, Muhammad Aslam, Khalid Hussain Thebo, Usman Khan, Renheng Wang, S. Saqib Shams, Zhang Han, Zhengbiao Ouyang, A comprehensive review on synthesis of pristine and doped inorganic room temperature stable mayenite electride, [Ca₂₄Al₂₈O₆₄]⁴⁺(e⁻)₄ and its applications as a catalyst, Progress in Solid State Chemistry, 54 (2019) 1. IF=6.353

22.     Aneel Pervez, Khalid Javed, Zafar Iqbal, Monas Shahzad, Usman Khan, Hamid Latif, Saqlain Abbas Shah, Naeem Ahmad, Fabrication and comparison of dye-sensitized solar cells by using TiO₂ and ZnO as photo electrode, Optik- International Journal for Light and Electron Optics, 182 (2019) 175. IF=1.597

23.     M. Imran, Saira Riaz, Ifra Sanaullah, Usman Khan, Anjum N. Sabri, Shahzad Naseem, Microwave assisted synthesis and antimicrobial activity of Fe₃O₄-doped ZrO₂ nanoparticles, Ceramic International, 45 (2019) 10106. IF=3.83

24.     M. Tahir, S. Riaz, N. Ahmad, U. Khan, S. Atiq, M.J. Iqbal, S. Naseem, Anomalous dielectric behavior and correlation of barrier hopping mechanism with ferroelectricity in solvent assisted phase pure bismuth iron oxide nanoparticles, Materials Research Bulletin, 119 (110543) 2019. IF=4.019

25.     Karim Khan, Ayesha Khan Tareen, Sayed Elshahat, Ashish Yadav, Usman Khan, Minghui Yang, Luigi Bibbò and Zhengbiao Ouyang, Facile synthesis of a cationic-doped [Ca₂₄Al₂₈O₆₄] ⁴⁺(4e⁻) composite via a rapid citrate sol–gel method, Dalton Transection, 47 (2018) 3819. IF=4.174

26.     W J Li, C J Wang, X M Zhang, M Irfan, U Khan, Y W Liu and X F Han, Experimental investigation and micromagnetic simulations of hybrid CoCr₂O₄/Ni coaxial nanostructures, Nanotechnology, 29 (2018) 245601. IF=3.551

27.     Sehrish Aslam, Tanveer Hussain Bokhari, Tauseef Anwar, Usman Khan, Adeela Nairan, Karim Khan, Graphene oxide coated graphene foam based chemical sensor, Materials Letters, 235 (66-70) 2018. IF=3.204

28.     Karim Khan, Ayesha Khan Tareen, Usman Khan, Adeela Nairan, Sayed Elshahat, Naseer Muhammad, Muhammad Saeed, Ashish Yadav, Luigi Bibbo, and Zhengbiao Ouyang, Single step synthesis of highly conductive room- temperature stable cation-substituted mayenite electride target and thin film, Nature Scientific Reports, 9 (4967) 2019. IF=3.998

29.     Karim Khan, Ayesha Khan Tareen, Li Jia, Usman Khan, Adeela Nairan, Yao Yuan, Xuyang Zhang, Minghui Yang, Zhengbiao Ouyang, Facile synthesis of tin-doped mayenite electride composite as a non-noble metal durable electrocatalyst for oxygen reduction reaction (ORR), Dalton Transection, 47 (2018) 13498. IF=4.174

30.     Karim Khan, Ayesha Khan Tareen, Sayed Elshahat, Naseer Muhammad, Jia Li, Israa Aboodd, Luigi Bibbo, Ashish Yadav, Rizwan Ur Rehman Sagar, Usman Khan, and Zhengbiao Ouyang, Facile metal-free reduction-based synthesis of pristine and cation-doped conductive mayenite. RSC Advances, 8 (2018) 24276–24285. IF=3.108

31.     M. Irfan, C. J. Wang, U. Khan, W. J. Li, X. M. Zhang, W. J. Kong, P. Liu, C. H. Wan, Y. W. Liu and X. F. Han, Controllable synthesis of ferromagnetic–antiferromagnetic core–shell NWs with tunable magnetic properties, Nanoscale, 17 (2017) 5694. IF=6.89

32.     M. Azam, N. Adeela, U. Khan, S. Riaz, M. Iqbal and S. Naseem, Structural and Magnetic investigations of Cr substituted NiFe₂O₄ nanostructures, Journal of Alloys and Compounds, 698 (2017) 228. IF=4.65

33.     Caihua Wan, Xuan Zhang, Zhonghui Yuan, Chi Fang, Wenjie Kong, Qintong Zhang, Hao Wu, Usman Khan, and Xiufeng Han, Programmable Spin Logic Based on Spin Hall Effect in a Single Device, Advanced Electronic Materials, 3 (2017) 1600282. IF=6.593

34.     Wen-Jing Li, U. Khan, Muhammad Irfan, K. Javed, P. Liu, S. L. Ban, and X.F. Han, Fabrication and magnetic investigations of highly uniform CoNiGa alloy nanowires, Journal of Magnetism and Magnetic Materials, 432 (2017) 124. IF=2.717

35.     Hassan Ali, Attia Falak, M. A. Rafiq, U. Khan, Shafqat Karim, Adeela Narain, Tang Jing and Xiulai Xu, Temperature dependent dielectric and electric modulus properties of ZnS nano particles, Semiconductor Science and Technology, 32 (2017) 035008. IF=2.71

36.     M. Irfan, U. Khan, W. J. Li, K. Javed and X. F. Han, Structural and magnetic properties of Fe₃Ga alloy nanowires: Effect of post annealing treatment, Journal of Alloys and Compounds, 691 (2017) 1. IF=4.65

37.     Qin-Tong Zhang, Peyton Murray, Lu You, Caihua Wan, Xuan Zhang, Wenjing Li, U. Khan, Junling Wang, Kai Liu, Xiu-Feng Han, Magnetic fingerprint of interfacial coupling between CoFe and nanoscale ferroelectric domain walls, Applied Physics Letters, 109 (2016) 082906. IF=3.597

38.     Adeela Nairan, Usman Khan, Maaz Khan, Saira Riaz and Shahzad Naseem, Magnetic and dielectric investigations of Mn doped Ba hexaferrite nanoparticles by hydrothermal approach, Journal of Electronic Materials, 45 (2016) 5853. IF=1.774

39.     N. Adeela, U. Khan, M. Iqbal, S. Riaz, M. Irfan, H. Ali, K. Javed, I. Bukhtiar, K. Maaz, S. Naseem, Structural and magnetic response of Mn substituted Co₂ Y-type barium hexaferrites, Journal of Alloys and Compounds, 686 (2016) 1017. IF=4.65

40.     Adeela Nairan, Maaz Khan, U. Khan and Shahzad Naseem, Temperature-Dependent Magnetic Response of Antiferromagnetic Doping in Cobalt Ferrite Nanostructures, Nanomaterials, 6 (2016) 73. IF=4.324

41.     Muhammad Irfan, U. Khan, Wenjing Li, N. Adeela, X. F. Han, Magnetic investigations of post-annealed metallic Fe nanowires via electrodeposition method, Materials Letters, 180 (2016) 235. IF=3.204

42.     Hassan Ali, U. Khan, M. A. Rafiq, Attia Falak, Adeela Narain, Tang Jing and Xiulai Xu, Richardson-Schottky transport mechanism in ZnS nanoparticles, AIP Advances, 6 (2016) 055306. IF=1.568

43.     Muhammad Irfan, Muhammad Usman, Asmat Elahi, U. Khan, Tahira Khan, K. Javed, S. S. Ali and Abdul Shakoor, Influence of Nd³⁺ substitution on physical, electrical and dielectric properties of Ba₂Zn₂Fe₁₂O₂₂ hexagonal ferrites prepared by sol–gel auto combustion method, Journal of Materials Science-Materials in Electronics, 27 (2016) 3637. IF=2.212

44.     X. Zhang, C. H. Wan, Z. H. Yuan, Q. T. Zhang, H. Wu, L. Huang, W. J. Kong, C. Fang, U. Khan, X. F. Han, Electrical control over perpendicular magnetization switching driven by spin-orbit torques, Physical Review B, 94 (2016) 174434. IF=3.575

45.     Nairan Adeela, K. Maaz, Usman Khan, S. Karim, A. Nisar, M. Ahmad, G. Ali, X.F. Han, JL. Duan, J. Liu., Influence of manganese substitution on structural and magnetic properties of CoFe₂O₄ nanoparticles, Journal of Alloys and Compounds, 639 (2015) 533. IF=4.65

46.     N. Adeela, K. Maaz, U. Khan, S. Karim, M. Ahmad, M. Iqbal, S. Riaz, X.F. Han, M. Maqbool. Fabrication and temperature dependent magnetic properties of nickel nanowires embedded in alumina templates, Ceramics International, 41 (2015) 12081. IF=3.83

47.     K. Javed, W. J. Li, D. W. Shi, U. Khan, S. Riaz, X. F. Han, Enhanced exchange bias and improved ferromagnetic properties in Permalloy BiFe_0.95Co_0.05O₃ core-shell nanostructures, Nature Scientific Reports, 5 (2015) 18203. IF=3.998

48.     R. Ashraf, S. Riaz, M. Bashir, U. Khan, S. Naseem, Structural and Magnetic Properties of Mn/Fe co-doped ZnO Thin Films Prepared by Sol-Gel Technique, IEEE Trans. Mag., 50 (2014) 8. IF=1.626

--