Associete Prof. Dr. Qingfeng YAN

Tel: 86-10-62792830



Associete Prof. Dr. 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 synthetic crystals and self-assembly approach to functional materials.


Selected Publication

1            He W, Li Q, Sun Y, Xi X, Zhang Y, Yan Q,* Piezoelectric property and nanodomain structures of PIN-PZ-PMN-PT single crystals with high ferroelectric phase transition temperature, Journal of Materials Chemistry C 2017, 5, 2459 - 2465.

2            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.

3            Zhang L, H?rantner 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.

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

5            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.

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

7            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.

8            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.

9            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. 

10         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.

11         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.

12         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.

13         Zhang Z, Xin X, Yang Y, Yan Q*, Li Q, Ren T-L,* Orthorhombic Black Phosphorus: Controlled synthesis by two-step heating chemical vapor transport and field-effect transistor application, Science China Materials 2016, 59, 122-134.

14         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.

15         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.

16         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  

17         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.

18         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.

19         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.

20         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.

21         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.

22         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.

23         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.

24         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.

25         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.

26         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.

27         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.

28         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.

29         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.

30         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. 

31         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.

32         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.

33         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.

34         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.

35         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.

36         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.

37         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.

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

39         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.

40         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.

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

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

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

44         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.

45         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.

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

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

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