Associete Prof. Dr. Qingfeng YAN

Tel: 86-10-62792830



Assoc. Prof. Qingfeng YAN received his BEng and Master degrees in 1997 and 2000, respectively. He earned his PhD from the Institute of Semiconductors, Chinese Academy of Sciences in 2003. He joined the Department of Chemical & Biomolecular Engineering, National University of Singapore as a research fellow in August 2003. From April 2006, he worked with the School of Materials Science and Engineering, Nanyang Technological University, Singapore and the Department of Materials Science and Engineering, Massachusetts Institute of Technology (MIT), USA as a joint postdoctoral fellow. Dr Yan joined the Department of Chemistry, Tsinghua  University in September 2008. His current research interests focus on functional synthetic crystals and materials chemistry.


Selected Publication

    1. Sun Y, Liu D, li Q, Shim J, He W, Fang H, Yan Q, Piezoelectric property of a tetragonal (Ba,Ca)(Zr,Ti)O3 single crystal with fine-domain structure, ACS Applied Materials & Interfaces 2018, accepted.

    2. Zhang Z, Khurram M, Sun Z, Yan Q,* Growth of tellurium-doped black phosphorus single crystals by chemical vapor transport, Inorganic Chemistry 2018, DOI: 10.1021/acs.inorgchem.8b00278.

    3. Lv Q, Lian Z, He W, Sun J-L, Li Q, Yan Q,* A universal top-down approach toward thickness-controllable perovskite single-crystalline thin films, Journal of Materials Chemistry C 2018, DOI: 10.1039/C8TC00842F.

    4. Lv Q, Lian Z, Li Q, Sun J-L, Yan Q,* Formic acid: an accelerator and a quality promoter for the growth of CH3NH3PbI3 single crystals, Chemical Communications 2018, 54, 1049 -1052.

    5. Liu D, Li Q, Yan Q,* Electro-caloric effect in BCZT single crystal, CrystEngComm 2018, 20, 1597-1602.

    6. He W, Li Q, Xi X, Yan Q,* High temperature-insensitive properties and nanodomain structures of PIN-PZ-PMN-PT relaxor single crystal, Journal of the American Ceramic Society 2018, 101, 1236-1244.

    7. Zhang L, Liu B, Wang J, Tao S,* Yan Q,* A general strategy to fabricate photonic crystal heterostructure with programmed photonic stopband, Journal of Colloid and Interface Science 2018, 509, 318-326.

    8. He W, Li Q, Sun Y, Xi X, Zhang Y, Yan Q,* Investigation of piezoelectric property and nanodomain structures for PIN-PZ-PMN-PT single crystals as a function of crystallographic orientation and temperature, Journal of Materials Chemistry C 2017, 5, 245-2465.

    9. He W, Jiang T, Li Q, Xi X, Yan Q,* Anisotropic domain structures of PMN-PZ-PT single crystals with high ferroelectric phase transition temperature, Journal of the American Ceramic Society 2017, 100,1724-1732.

    10. Ding J, Yan Q,* Progress in organic-inorganic hybrid halide perovskite single crystal: growth techniques and applications, Science China Materials 2017, 60, 1063-1078. 

    11. Zhang X, Zhang Z, Zhang S, Li D, Ma W, Ma C, Wu F, Zhao Q,* Yan Q,* Xing B,* Size effect on the cytotoxicity of layered black phosphorus and underlying mechanisms, Small 2017, 13, 1701210.

    12. He W, Carpenter MA,* Lampronti GI, Li Q, Yan Q,* Local strain heterogeneity and elastic relaxation dynamics associated with relaxor behaviour of single crystal Pb(In1/2Nb1/2)O3?PbZrO3?Pb(Mg1/3Nb2/3)O3?PbTiO3 perovskite, Physics Review B 2017, 96, 144109.

    13. Zhang Z, Zheng L, Khurram M, Yan Q,* Phosphorene-directed self-Assembly of asymmetric PS-b-PMMA block copolymer for perpendicularly-oriented sub-10 nm PS nanopore arrays, Nanotechnology 2017, 28, 424001.

    14. Liu D, Shim J, Sun Y, Li Q, Yan Q,* Growth of Ca, Zr co-doped BaTiO3 lead-free ferroelectric single crystal and its room-temperature piezoelectricity, AIP Advances 2017, 7, 095311.

    15. Fang H, Li J, Ding J, Sun Y, Li Q, Sun J-L, Wang L, Yan Q,* An origami perovskite photodetector with spatial recognition ability, ACS Applied Materials & Interfaces 2017, 9, 10921–10928.

    16. Zhang L, Horantner MT, Zhang W, Yan Q,* Snaith HJ,* Near-neutral-colored semitransparent perovskite films using a combination of colloidal self-assembly and plasma etching, Solar Energy materials and solar Cells 2017, 160, 193-202.

    17. Zhang Z, Yan Q,* Hittorf's phosphorus: the missing link during transformation of red phosphorus to black phosphorus, CrystEngComm 2017, 2017, 19, 905-909.

    18. Lv Q, Li J, Lian Z, Zhao H, Dong G,* Li Q, Wang L, Yan Q,* CH3NH3PbI3 single crystal based ambipolar field-effect transistor with Ta2O5 as the top gate dielectric, Acta Phys. -Chim. Sin. 2017, 33, 249-254.

    19. Lv Q, He W, Lian Z, Ding J, Li Q, Yan Q,* Moisture instability of CH3NH3PbI3 single crystal, CrystEngComm 2017, 19, 901-904.

    20. Fang H, Wang X, Li Q, Peng D, Yan Q,* Pan C,* A stretchable nanogenerator with electric/light dual-mode energy conversion, Advanced Energy Materials 2016, 6, 1600829.

    21. Zheng L, Huang P, Zhang L, Guo D, Yan Q,* Facile fabrication of anisotropic colloidal particles with controlled shapes and shape dependence of their elastic properties, Particle & Particle Systems Characterization 2016, 33, 842-850.

    22. Lian Z, Yan Q,* Gao T, Ding J, Lv Q, Ning C, Li Q, Sun J-L,* Perovskite CH3NH3PbI3(Cl) single crystals: rapid solution growth, unparalleled crystalline quality, and low trap density toward 108 cm-3, Journal of the American Chemical Society 2016, 138, 9409-9412.  

    23. Fang H, Xu C, Ding J, Li Q, Sun J-L, Dai J-Y, Ren T-L, Yan Q,* Self-powered ultra-broadband photodetector monolithically integrated on a PMN-PT ferroelectric single crystal, ACS Applied Materials & Interfaces 2016, 8, 32934–32939.

    24. Lian Z, Yan Q,* Eu2+ doped NaBa4(AlB4O9)2X3 (X = Cl, Br) phosphors with intense two-center blue emission and high color purity for n-UV pumped white-light-emitting diodes, Journal of Materials Chemistry C 2016, 4, 7959-7965.

    25. Ding J, Fang H, Lian Z, Li J, Lv Q, Wang L, Sun J-L, Yan Q,* A self-powered photodetector based on CH3NH3PbI3 single crystal with asymmetric electrodes, CrystEngComm 2016, 18, 4405-4411.

    26. Zhang Z, Xin X, Yang Y, Yan Q*, Li Q, Ren T-L,* Two-step heating synthesis of sub-3 millimeter-sized orthorhombic black phosphorus single crystal by chemical vapor transport reaction method, Science China Materials 2016, 59, 122-134.

    27. Zhang L, Wang W, Zheng L, Wang X, Yan Q,* Quantitative characterization of mechanical property of annealed monolayer colloidal crystal, Langmuir 2016, 32, 451-459.

    28. Zhang Z, Geng C, Hao Z, Wei T, Yan Q,* Recent advancement on spherical-lens photolithography based on monolayer colloidal crystals, Advances in Colloid and Interface Science 2016, 228, 105-122.

    29. Fang H, Li Q, Ding J, Li N, Tian H, Zhang L, Ren T, Dai J, Wang L, Yan Q,* Self-powered organolead halide perovskite single crystal photodetector driven by a DVD-based triboelectric nanogenerator, Journal of Materials Chemistry C 2016, 4, 630-636  

    30. Fang H, Tian H, Li J, Li Q, Dai J-Y, Ren T-L, Dong G, Yan Q,* Self-powered flat panel displays enabled by motion-driven alternating current electroluminescence, Nano Energy 2016, 20,48-56.

    31. Fang H, Yan Q,* Geng C, Chan NY, Au K, Yao J, Ng SM, Leung CW, Li Q, Guo D, Chan HLW, Dai J-Y,* Facile fabrication of highly ordered P(VDF-TrFE) nanodot arrays for organic ferroelectric memory, Journal of Applied Physics 2016, 119, 014104.

    32. He W, Li Q, Luo N, Zhang Y, Yan Q,* Temperature-dependent phase transition in orthorhombic [001]-oriented low In3+ doping 19PIN-45PMN-36PT single crystals, Materials Research Bulletin 2016, 75, 121-126.

    33. Lian Z, Yan Q,* Lv Q, Wang Y, Liu L, Zhang L, Pan S, Li Q, Wang L, Sun J-L,* High-performance planar-type photodetector on (100) facet of MAPbI3 single crystal, Scientific Reports 2015, 5,16563.

    34. Fang H, Lin Z, Wang X, Tang C-Y, Chai Y, Li Q, Yan Q,* Chan HLW, Dai J-Y,* Infrared light gated MoS2 field effect transistor, Optics Express 2015,23, 31908-31914.

    35. Fang H, Li Q, He W, Li J, Xue Q, Xu C, Zhang L, Ren T, Dong G, Chan H L W, Dai J,* Yan Q,* High performance triboelectric nanogenerators for self-powered nonvolatile ferroelectric transistor memory, Nanoscale 2015, 7, 17306-17311.

    36. Geng C, Yan Q,* Dong P, Shan L, Du C, Zhang L, Wei T, Hao Z, Improved performance of GaN-based LEDs with nanopatterned sapphire substrates fabricated by wet chemical etching, Journal of Vacuum Science and Technology B 2015, 33, 032402.

    37. He W, Li Q, Luo N, Zhang Y, Yan Q,* Temperature and electric field induced phase transition in [110]C-oriented 0.63Pb(Mg1/3Nb2/3)O3?0.37PbTiO3 single crystals, CrystEngComm 2015, 17, 8664-8670.

    38. Zhang L, Xiong Z, Shan L, Zheng L, Wei T, Yan Q,* Layer-by-layer approach to (2+1)D photonic crystal superlattice with enhanced crystalline integrity, Small 2015, 11, 4910-4921.

    39. Zheng L, Ma Z, Li Z, Yan Q,* Nonsolvent induced nanostructuration of three-dimensional curved polymer surfaces, Journal of Colloid and Interface Science 2015, 441, 39-45.

    40. Geng C, Wei T, Wang X, Shen D, Hao Z, Yan Q,* Enhancement of light output power from LEDs based on monolayer colloidal crystal, Small, 2014, 10, 1668-1686.

    41. He W, Li Q, Yan Q,* Luo N, Zhang Y, Chu X, Shen D, Temperature-dependent phase transition in orthorhombic [011]c Pb(Mg1/3Nb2/3) O3-0.35PbTiO3 single crystal, Crystals 2014, 4, 262-272.

    42. Zhang L, Liu X, Liang Z, Geng C, Wang X, Shen G, Shen D, Yan Q,* Highly efficient field emission from large-scale and uniform monolayer graphene sheet supported on patterned ZnO nanorod arrays, Journal of Materials C 2014, 2, 3965-3971.

    43. Liu X, Zhao D, Geng C, Zhang L, Tan T, Hu M, Shen D, Yan Q,* Solvent vapour annealing of floating multilayer colloidal crystals: a facile approach to 3D photonic crystal heterostructures free of interface imperfection, Journal of Colloid and Interface Science 2014, 434, 98-103. 

    44. Geng C, Yan Q,* Du C, Dong P, Zhang L, Wei T, Hao Z, Wang X, Shen D, Large-area and ordered sexfoil pore arrays by sphereical-lens photolithography, ACS Photonics 2014, 1, 754-760.

    45. Geng C, Zheng L, Fang H, Yan Q,* Wei T, Hao Z, Wang, X, Shen D, Fabrication of nano-patterned sapphire substrates with volcano shaped using self-assembly and wet etching, Nanotechnology 2013, 24, 335301.

    46. Lian Z, Sun J, Zhang L, Shen D*, Shen G, Wang X, Yan Q,* Crystal structure, luminescence properties and energy transfer of color-tunable KBaY(BO3)2: Ce3+, Mn2+ phosphor for n-UV pumped white-light-emitting diodes, RSC Advances 2013, 3, 16534-16541.

    47. Zheng L, Mang Z, Geng C, Yu J, Yan Q,* Wang X, Shen D, Solvent-assisted interfacial tension deformation of spherical particles for fabrication of non-spherical particle arrays, Particle & Particle Systems Characterization 2013, 30, 812-817.

    48. Zhang L, Liu X, Fang H, Geng C, Liang Z, Wang X, Shen D, Yan Q,* Hexagonal crown-shaped zinc oxide micro rods: hydrothermal growth and formation mechanism, Inorganic Chemistry, 2013, 52, 10167-10175.

    49. Geng C, Zheng L, Yu J, Yan Q,* Wang X, Shen D, Thermal annealing of colloidal monolayer at the air/water interface: a facile approach to transferrable colloidal masks with tunable interstice size for nanosphere lithography, Journal of Materials Chemistry 2012, 22, 22678-22685.

    50. Yu J, Geng C, Zeng Y, Yan Q,* Wang X, Shen D, Confined self-assembly of asymmetric diblock copolymers within silica nanobowl arrays, ACS Macro Letters 2012, 1, 62-66.

    51. Yu J, Geng C, Zheng L, Ma Z, Tan T, Wang X, Yan Q,* Shen D, Preparation of high-quality colloidal mask for nanosphere lithography by a combination of air/water interface self-assembly and solvent vapor annealing, Langmuir 2012, 28, 12681-12689.

    52. Yu J, Yan Q,* Shen D, Co-self-assembly of binary colloidal crystals at the air?water interface ACS Applied Materials & Interfaces 2010, 5, 1922-1926.

    53. Yan Q, Gao L, Sharma V, Chiang Y-M, Wong CC,* Particle and substrate charge effects on colloidal self-assembly in a sessile drop, Langmuir 2008, 24, 11518-11522.

    54. Yan Q, Teh LK, Shao Q, Wong CC,* Chiang Y-M, Layer transfer approach to opaline hetero photonic crystals, Langmuir 2008, 24, 1796-1800.

    55. Yan Q, Wang L, Zhao XS,* Artificial defect engineering in self-assembled three-dimensional photonic crystals, Advanced Functional Materials 2007, 17, 3695-370.

    56. Yan Q, Zhao XS,* Teng JH, Chua SJ, Colloidal woodpile structure: three-dimensional photonic crystal with dual periodicity, Langmuir 2006, 22, 7001-7006.

    57. Yan Q, Liu F, Wang L, Lee JY, Zhao XS,* Drilling nanoholes in colloidal spheres by selective etching, Journal of Materials Chemistry 2006, 16, 2132-2134.

    58. Yan Q, Chen A, Chua SJ, Zhao XS,* Incorporation of point defects into self-assembled three-dimensional colloidal crystals, Advanced Materials 2005, 17, 2849-2853.

    59. Yan Q, Zhou Z, Chua SJ, Zhao XS,* Line defects embedded in three-dimensional photonic crystals, Advanced Materials 2005, 17, 1917-1920.

    60. Yan Q, Zhou Z, Zhao XS,* Introduction of three-dimensional extrinsic defects into colloidal photonic crystals, Chemistry of Materials 2005, 17: 3069-3071.

    61. Yan Q, Zhou Z, Zhao XS,* Inward-growing self-assembly of colloidal crystal films on horizontal substrates, Langmuir 2005, 21, 3158-3164.