About us
Welcome to Our Group
Kaihui Liu's group has been long engaged in studying growth mechanism and spectral physics for low-dimensional materials. We independently designed the meter-scale single-crystal manufacturing equipment, built the single nano-object level in-situ optical characterization system and developed two-dimensional material composite fibers for all-fiber integration devices. We have made several important progresses, including (1) realizing surficial and interfacial engineering of the growth of 2D materials; (2) developing global methods of synthesizing meter-sized single-crystal films; (3) fabricating structure-dependent devices. Professor Liu has published more than 100 scientific（Google cites>17000,H-index 70) journals, including correspondence-authored Nature (3)，Science(3), Nature Nanotechnology (7)，Nature Photonics (2)，Nature Physics，PRL(2), Nature Materials，Nature Chemistry，Nature Communications (9)，Advanced Materials (14)，JACS (4)，PNAS (2)和Science Bulletin (5)等。
Breaking News
Breaking News
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202410:
Liu Kaihui's team won “Hu Gangfu Prize of Chinese Physical Society”.
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- 202407: Liu Kaihui's team won the first prize of “The Creative Founder Award” from the China Association of Inventions.
- 202407: We systematically summarize the preparation strategies of large-area two-dimensional transition metal chalcogenides, and the related review article "Large-Area Epitaxial Growth of Transition Metal Dichalcogenides" was published in Chemical Reviews 2024 Link1 PDF
- 202407: We systematically summarize the epitaxial growth methods of two-dimensional materials and their homogeneous structures. The related review article "Understanding epitaxial growth of two-dimensional materials and their homostructures" was published in Nature Nanotechnology 2024, 19, 907 Link1 Link2 Link3 PDF
- 202407: We have made progress in the fabrication of a series of rhombohedral phase two-dimensional stacked single crystals, and the related research article "Interfacial epitaxy of multilayer rhombohedraltransition-metal dichalcogenide single crystals" was published in Science 2024, 385, 99 Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 PDF
- 202406: We have made progress in the atomically precise fabrication of tungsten disulfide nanoribbons, and the related research article "WS2 ribbon arrays with defined chirality and coherent polarity" was published in Science 2024, 384, 1100 Link1 Link2 Link3 Link4 Link5 Link6 PDF
- 202406: We have made progress in the study of chiral optical nonlinearity in coherently stacked boron nitride nanotubes. The related research article "Strong chiroptical nonlinearity in coherently stacked boron nitride nanotubes" was published in Nature Nanotechnology 2024, 19, 1299 Link1 Link2 Link3 Link4 Link5 Link6 PDF1 PDF2
- 202405: We have made progress in preparing rhombohedral stacked double-layer single crystal tungsten disulfide. The related research article "Remote epitaxy of single-crystal rhombohedral WS2 bilayers" was published in Nature Communications 2024 Link1 PDF
- 202405: We have made progress in the preparation of ferroelectric rhombohedral boron nitride single crystals, and the related research article "We have made progress in the preparation of ferroelectric rhombohedral boron nitride single crystals, and the related research article "aaa" was published in" was published in Nature 2024, 629, 74 Link1 Link2 Link3 Link4 Link5 PDF
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202404:
Liu Kaihui's team won“Gold Medal at the Geneva International Invention Exhibition”.
- 202404: The national major scientific research equipment development project "Development of an ultra-high spatiotemporal resolution in-situ multi-scale quantum measurement system" passed the acceptance. Link1
- 202404: The research group's "A powerful tool for controlling lasers - original theory and materials of corner boron nitride optical crystals" was selected “major achievement of the 2024 Zhongguancun Forum Annual Conference”. Link1 Link2 Link3
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202403:
Professor Liu Kaihui won“Elsevier 2023 China Highly Cited Researchers”.
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- 202312: We have made progress in the theory of twist phase matching and twist optical crystals. The related research article "Twist Phase Matching in Two-Dimensional Materials" was published in Physical Review Letters 2023, 131, 233801 PDF Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 Link11 Link12 Link13
- 202311: We have made progress in using graphene for corrosion prevention, and the related research article "Enhanced copper anticorrosion from Janus-doped bilayer graphene" was published in Nature Communications 2023, 14, 7447 PDF Link1 Link2 Link3 Link4 Link5
- 202311: Professor Liu Kaihui won the 2022“First Prize of Beijing Science and Technology Award”.
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202309:
Professor Liu Kaihui introduced sun protection knowledge on CCTV News Channel's "Attention and Service".
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- 202307: We have made progress in the preparation of millimeter-level thick single-crystal copper plates using electroplating methods. The related research article "Production of single-crystal Cu plates by electrodeposition on high-index Cu foils" was published in Science Bulletin 2023 PDF Link1
- 202307: We have made progress in the research of preparing thick rhombohedral boron nitride films and achieving efficient nonlinear frequency conversion. The related research article "Stacking-Controlled Growth of rBN Crystalline Films with High Nonlinear Optical Conversion Efficiency up to 1%" was published in Advanced Materials 2023 PDF Link1
- 202307: We have made progress in the study of tunable interband transitions in angle-rotating h-BN/graphene using electron microscopy. The related research article "Tunable Interband Transitions in Twisted h-BN/Graphene Heterostructures" was published in Physical Review Letters 2023, 131, 016201 Link1 PDF
- 202307: We have made progress in the research of batch preparation of 12-inch two-dimensional semiconductor wafers. The related research article "Modularized Batch Production of 12-inch Transition Metal Dichalcogenides by Local Element Supply" was published in Science Bulletin 2023 Link1 Link2 Link3 Link4 Link5 Link6 Link7 PDF
- 202306: Wang Qinghe from the research team won the "Special Prize of the 31st Peking University Challenge Cup May Fourth Youth Science Award". Link1
- 202306: Professor Liu Kaihui was invited to make a report. Link1 Link2
- 202302: Our research paper “Universal epitaxy of non-centrosymmetric two-dimensional single-crystal metal dichalcogenides” was published on Nature Communications 2023 Link1 PDF
- 202301: The work of our group (Nature Materials 2022, 21, 1263) was selected as "Nomination prize of the top ten research progress of China's semiconductors in 2022",.
- 202210: Our research paper “Continuous epitaxy of single-crystal graphite films by isothermal carbon diffusion through nickel” was published on Nature Nanotechnology 2022, 17, 1258 Link1 Link2 Link3 Link4 Link5 Link6 PDF
- 202209: Our research paper “Designed growth of large bilayer graphene with arbitrary twist angles” was published on Nature Materials 2022. Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 PDF
- 202204: Professor Liu Kaihui was invited to write News & Views column at Nature Nanotechnology "Monolayer mosaic heterostructures". PDF
- 202202: Our research paper “Robust growth of two-dimensional metal dichalcogenides and their alloys by active chalcogen monomer supply” was published on Nature Communications. Link1 Link2 Link3 PDF
- 202112: Our research paper "Quantification of light-enhanced ionic transport in lead iodide perovskite thin films and its solar cell applications"as a basic research paper of Physics (Mathematics, chemistry and interdisciplinary cluster), was selected "The sixth excellent scientific and technological paper of China Association for science and technology". Link1 Link2
- 202108: Our research paper "Dual-coupling-guided epitaxial growth of wafer-scale single-crystal WS2 monolayer on vicinal a-plane sapphire" was published on Nature Nanotechnology. Link1 Link2
- 202108: Our research paper "Complete structural characterization of single carbon nanotubes by Rayleigh scattering circular dichroism" was published on Nature Nanotechnology. Link1 Link2
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202108: Prof. Liu introduced the knowledge of sun protection on CCTV. Link1 - 202105: Our research paper "Giant enhancement of optical nonlinearity in two-dimensional materials by multiphoton-excitation resonance energy transfer from quantum dots" was published on Nature Photonics.
- 202102: The work of our group (Nature 2020, 581, 406) was selected as "one of the top ten research progress of China's semiconductors in 2020", "major progress of China's science, technology and engineering in 2020".
- 202011: Professor Liu was selected in "The National Science Fund for Distinguished Young Scholars". Link1 Link2
- 202009: Our research paper "Optical fibres with embedded two-dimensional materials for ultrahigh nonlinearity" was published on Nature Nanotechnology. Link1 Link2 Link3
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202009: Prof. Liu introduced ultra-violet. Prof. Liu introduced anti-blue light on CCTV. - 202005: Our research paper "Seeded growth of large single-crystal copper foils with high-index facets" was published on Nature. Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 Link11 Link12 Link13 Highlight
- 201911: Professor Liu was selected in "Beijing Municipal Natural Science Foundation for Distinguished Young Scholars". Link1
- 201908: Our research paper "Graphene photonic crystal fibre with strong and tunable light–matter interaction" was published on Nature Photonics. Highlight Story Link1 Link2 Link3 Link4
- 201907: Our research paper "Kinetic modulation of graphene growth by fluorine through spatially confined decomposition of metal fluorides" was published on Nature Chemistry. Link1 Link2 Link3 Link4 Link5 Link6
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201906: Guangming Daily do a live broadcast on our lab. Our laboratory participated in PKU Disciplines Season 1 Physics Episode. - 201905: Our research paper "Epitaxial growth of a 100-square-centimetre single-crystal hexagonal boron nitride monolayer on copper" was published on Nature. Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 Link11 Link12
- 201808: Our research paper "Measurement of complex optical susceptibility for individual carbon nanotubes by elliptically polarized light excitation" was published on Nature Communications. Link1 Link2
- 201801: Professor Liu was appointed as the Associate Editor for Science Bulletin .
- 201712: Professor Liu got the third prize of the 2017 Beijing Science & Technology Award .
- 201712: Professor Liu was selected as the 2017 Excellent Advisor Teacher in Undergraduate's Scientific Research .
- 201711: Professor Liu was selected as 2017 “Beijing Excellent Youth Professor”. Link1 Link2
- 201711: Professor Liu was selected as 2017 Peking University“Huang Tingfang/Xin He Excellent Youth Scholar” .
- 201711: Liu Group got a first in the third “Star of Nanotechnology” innovate business contest and a technology-leading prize.
- 201707: Our research paper "Ultrafast epitaxial growth of metre-sized single-crystal graphene on industrial Cu foil" was published on Science Bulletin. Link1 Link2 Link3 Link4
- 201612: Professor Liu was selected as one of the Ten "Xin Rui" Scholar of China 2016.
- 201608: Our research paper "Ultrafast growth of single-crystal graphene assisted by a continuous oxygen supply" was published on Nature Nanotechnology. Link1 Link2 Link3 Link4
- 201606: Professor Liu was granted the National Key R&D Plan as a sub-project leader.
- 201508: Professor Liu was selected in "NSFC Excellent Youth Scholar" of China.
- 201401: Professor Liu was selected in "Overseas high-level talent plan".
Highlights & News
Highlights: more
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News: more
- 202108: Our research paper "Dual-coupling-guided epitaxial growth of wafer-scale single-crystal WS2 monolayer on vicinal a-plane sapphire" was published on Nature Nanotechnology. Link1 Link2
- 202108: Our research paper "Complete structural characterization of single carbon nanotubes by Rayleigh scattering circular dichroism" was published on Nature Nanotechnology. Link1 Link2
- 202108: Prof. Liu introduced the knowledge of sun protection on CCTV. Link1
- 202106: Our research paper "Pattern-Potential-Guided Growth of Textured Macromolecular Films on Graphene/High-Index Copper" was published on Advanced Materials .
- 202105: Our research paper "Giant enhancement of optical nonlinearity in two-dimensional materials by multiphoton-excitation resonance energy transfer from quantum dots" was published on Nature Photonics .
- 202102: The work of our group (Nature 2020, 581, 406) was selected as “one of the top ten research progress of China's semiconductors in 2020”, “major progress of China's science, technology and engineering in 2020”.
- 202011: Professor Liu was selected in“The National Science Fund for Distinguished Young Scholars”. Link1 Link2
- 202011: Our research paper "Product-Specific Active Site Motifs of Cu for Electrochemical CO2 Reduction"was published on Chem . Link1
- 202009: Our research paper "Optical fibres with embedded two-dimensional materials for ultrahigh nonlinearity" was published on Nature Nanotechnology . Link1 Link2 Link3
- 202006: Our research paper "Unveiling the Fine Structural Distortion of Atomically Thin Bi2O2Se by Third-Harmonic Generation" was published on Advanced Materials .
- 202005: Our research paper "Seeded growth of large single-crystal copper foils with high-index facets"was published on Nature . Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 Link11 Highlight
- 202003: Our research paper "Designed Growth of Large-Size 2D Single Crystals" was published on Advanced Materials . Link1 Link2 Link3 Link4 Link5 Link6
- 202003: Our research paper "Superstable Copper Nanowire Network Electrodes by Single-Crystal Graphene Covering and Their Applications in Flexible Nanogenerator and Light-emitting Diode" was published on Nano Energy .
- 201911: Professor Liu was selected in“Beijing Municipal Natural Science Foundation for Distinguished Young Scholars”. Link1
- 201908: Our research paper "Graphene photonic crystal fibre with strong and tunable light–matter interaction" was published on Nature Photonics. Link1 Link2 Link3 Link4
- 201907: Our research paper "Kinetic modulation of graphene growth by fluorine through spatially confined decomposition of metal fluorides" was published on Nature Chemistry. Link1 Link2 Link3 Link4 Link5 Link6
- 201905: Our research paper "Epitaxial growth of a 100-square-centimetre single-crystal hexagonal boron nitride monolayer on copper" was published on Nature. Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 Link11 Link12
- 201904: Our research paper "Photoelectric conversion on Earth’s surface via widespread Fe- and Mn-mineral coatings" was published on PNAS. Link1 Link2 Link3
- 201903: Our research paper "Controllable Growth of Aligned Monocrystalline CsPbBr3 Microwire Arrays for Piezoelectric-Induced Dynamic Modulation of Single-Mode Lasing" was published on Advanced Materials.
- 201903: Our research paper "Universal Imaging of Full Strain Tensor in 2D Crystals with Third-Harmonic Generation" was published on Advanced Materials.
- 201810: Our research paper "Ultrafast epitaxial growth of metre-sized single-crystal graphene on industrial Cu foil" was selected as high influenced paper in 2018 on Science Bulletin .
- 201810: Our research paper "Ultrafast Broadband Charge Collection from Clean Graphene/CH3NH3PbI3 Interface" was published on JACS.
- 201808: Our research paper "Measurement of complex optical susceptibility for individual carbon nanotubes by elliptically polarized light excitation" was published on Nature Communications. Link1
- 201808: Our research paper "Ultrafast and highly sensitive infrared photodetectors based on two-dimensional oxyselenide crystals" was published on Nature Communications. Link1 Link2 Link3
- 201805: Xu Zhou was elected for the China 2018 “Postdoctoral Innovative Personnel Support Program” .
- 201803: Professor Liu got the third prize of the 2017 Beijing Science & Technology Award .
- 201803: Our research paper "Probing Phonon Dynamics in Individual Single-Walled Carbon Nanotubes" was published on Nano Letters. Link1
- 201803: Our review paper "Interfacial engineering in graphene bandgap" was published on Chemical Society Reviews. Link1 COVER STORY
- 201801: Professor Liu was appointed as the Associate Editor for Science Bulletin .
- 201801: Professor Liu was selected as the 2017 Excellent Advisor Teacher in Undergraduate's Scientific Research .
- 201712: Our research paper "Greatly Enhanced Anticorrosion of Cu by Commensurate Graphene Coating" was published on Advanced Materials. Link1 Link2 Link3 Link4
- 201711: Professor Liu was selected as 2017 “Beijing Excellent Youth Professor”. Link1
- 201711: Professor Liu was selected as 2017 Peking University“Huang Tingfang/Xin He Excellent Youth Scholar” .
- 201711: Our research paper "Robust Stacking-Independent Ultrafast Charge Transfer in MoS2/WS2 Bilayers" was published on ACS NANO. Link1
- 201711: Our research paper "Monitoring Local Strain Vector in Atomic-Layered MoSe2 by Second-Harmonic Generation" was published on Nano Letters.
- 201707: Our research paper "Ultrafast epitaxial growth of metre-sized single-crystal graphene on industrial Cu foil" was published on Science Bulletin. Link1 Link2 Link3 Link4 Link5 Link6 Link7 Link8 Link9 Link10 Link11 Link12
- 201706: Our research paper "Carbon Nanotubes as an Ultrafast Emitter with a Narrow Energy Spread at Optical Frequency" was published on Advanced Materials. Link1
- 201707: Our research paper "Ultrafast epitaxial growth of metre-sized single-crystal graphene on industrial Cu foil" was published on Science Bulletin.
- 201706: Our research paper "Real-Time Observation of Carbon Nanotube Etching Process Using Polarized Optical Microscope" was published on Advanced Materials.
- 201705: Our invited review paper "The Way towards Ultrafast Growth of Single-Crystal Graphene on Copper" was published on Advanced Science. Link1
- 201705: Our research paper "Superlubricity between MoS2 Monolayers" was published on Advanced Materials. Link1 Link2
- 201704: Our research paper "Interlayer-State-Coupling Dependent Ultrafast Charge Transfer in MoS2/WS2 Bilayers" was published on Advanced Science. Link1
- 201704: Xiaozhi Xu was elected for the China 2017 “Postdoctoral Innovative Personnel Support Program” .
- 201702: Our invited review paper "Interfacial Engineering of Van der Waals Coupled 2D Layered Materials" was published on Advanced Materials Interfaces.
- 201702: Our research paper "High‐Mobility Multilayered MoS2 Flakes with Low Contact Resistance Grown by Chemical Vapor Deposition" was published on Advanced Materials.
- 201701: Our research paper "Sub-10 nm Nanopattern Architecture for 2D Material Field-Effect Transistors" was published on Nano Letters.
- 201701: Professor Liu was selected as one of the Ten “Xin Rui” Scholar of China 2016.
Year 2021
Year 2020
Year 2019
Year 2018
Year 2017
Year 2016
- 201608: Our research paper "Ultrafast growth of single-crystal graphene assisted by a continuous oxygen supply" was published on Nature Nanotechnology. Link1 Link2 Link3 Link4 Link5
- 201608: Our research paper "Far-field nanoscale infrared spectroscopy of vibrational fingerprints of molecules with graphene plasmons" was published on Nature Communications. Link1
- 201608: Our research paper "High-Resolution Tracking Asymmetric Lithium Insertion and Extraction and Local Structure Ordering in SnS2" was published on Nano Letters.
- 201606: Professor Liu was granted the National Key R&D Plan as a sub-project leader.
- 201605: Our invited review paper "Structure–property relations in individual carbon nanotubes" was published on Journal of the Optical Society of America B.
- 201603: Our research paper "Tuning the photo-response in monolayer MoS2 by plasmonic nano-antenna" was published on Scientific Reports.
- 201603: Our research paper "Ultrafast Nonlinear Photoresponse of Single-Wall Carbon Nanotubes: A Broadband Degenerate Investigation" was published on Nanoscale.
- 201601: Our research paper "Optical Anisotropy of Black Phosphorus in the Visible Regime" was published on JACS.
- 201601: Our research paper "High-Throughput Determination of Statistical Structure Information for Horizontal Carbon Nanotube Arrays by Optical Imaging" was published on Advanced Materials. Link1
- 201601: Our research paper "Observation of Strong Interlayer Coupling in MoS2/WS2 Heterostructures" was published on Advanced Materials.
Year 2015
- 201510: Our research paper "BN-Enabled Epitaxy of Pb1–xSnxSe Nanoplates on SiO2/Si for High-Performance Mid-Infrared Detection" was published on Small.
- 201509: Our research paper "Atomic-Scale Probing of the Dynamics of Sodium Transport and Intercalation-Induced Phase Transformations in MoS2" was published on ACS Nano.
- 201509: Our research paper “Surface-Facet-Dependent Phonon Deformation Potential in Individual Strained Topological Insulator Bi2Se3 Nanoribbons” was published on ACS Nano.
- 201508: Our research paper “Photovoltaic Effect and Evidence of Carrier Multiplication in Graphene Vertical Homojunctions with Asymmetrical Metal Contacts” was published on ACS Nano.
- 201508: Professor Liu was selected in “NSFC Excellent Youth Scholar”.
- 201506: Our research paper "Strong Second-Harmonic Generation in Atomic Layered GaSe" was published on JACS. Link1
- 201506: Our research paper "Single-Crystal Atomic-Layered Molybdenum Disulfide Nanobelts with High Surface Activity" was published on ACS Nano.
Year 2014
- 201411: Professor Liu's paper “Three-Dimensional Spirals of Atomic Layered MoS2” was published on Nano Letters. Link1
- 201410: Professor Liu's paper “Van der Waals-coupled electronic states in incommensurate double-walled carbon nanotubes” was published on Nature Physics. Link1 Link2
- 201409: Professor Liu's paper “Evolution of interlayer coupling in twisted molybdenum disulfide bilayers” was published on Nature Communications.
- 201405: Professor Liu's paper “Systematic determination of absolute absorption cross-section of individual carbon nanotubes” was published on PNAS.
- 201403: Our group was founded!
- 201401: Professor Liu was selected in "Overseas high-level talent plan".
Before 2014
- 201311: Professor Liu's research paper “High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices” was published on Nature Nanotechnology. Link1 Link2 Link3
- 201301: Professor Liu's research paper “Quantum-coupled radial-breathing oscillations in double-walled carbon nanotubes” was published on Nature Communications.
- 201205: Professor Liu's research paper “An atlas of carbon nanotube optical transitions” was published on Nature Nanotechnology. Link1 Link2
- 200901: Professor Liu's research paper "Chirality-Dependent Transport Properties of Double-Walled Nanotubes Measured in Situ on Their Field-Effect Transistors" was published on JACS. Link1 Link2