• Biography

     

    Yi WANG is currently a Research Assistant Professor in the Department of Chemistry at the University of Tokyo. He obtained the B.A. degree and Ph.D. degree, in 2011 and 2016 respectively, from Renmin University of China in chemistry. From 2016 to 2018, he was working as a postdoctoral research fellow at National University of Singapore. In 2019, he joined Prof. Keisuke Goda's group at the University of Tokyo and became a Research Assistant Professor therein.

     

     

     

  • Research Interests

    1.​ Laser spectroscopy & optoelectronic transient technology

     

    a) fs transient absorption spectroscopy, ns flash photolysis, time-resolved photoluminescence spectroscopy

     

    b) transient photovoltage/photocurrent, time-resolved charge extraction

    2. The mechanism of photoelectric conversion in photovoltaic device

     

    a) the mechanism of energy transfer and charge transport

     

    b) energy distribution and chemical control of trap states

     

    c) fabrication of high-efficiency solar cell devices

    3. Nonlinear optical properties and exciton dynamics of colloidal nanocrystals

     

    a) development of colloidal nanocrystals as optical gain media

     

    b) multiexciton dynamics in nanocrystals

     

    c) unique biochemcial application of quantum dots-based electronic device

  • Publication List

    18. M. J. H. Tan, Y. Wang* (corresponding author), Y. Chan, Solution-Based Green Amplified Spontaneous Emission from Colloidal Perovskite Nanocrystals Exhibiting High Stability, Appl. Phys. Lett., 2019, 114:183101.

     

    17. Y. Wang, M. Zhi, Y.-Q. Chang, J.-P. Zhang, Y. Chan, Stable, Ultralow Threshold Amplified Spontaneous Emission from CsPbBr3 Nanoparticles Exhibiting Trion Gain, Nano Lett., 2018, 18:4976.

     

    16. Y. Wang, M. Zhi, Y. Chan, Delayed Exciton Formation Involving Energetically Shallow Trap States in Colloidal CsPbBr3 Quantum Dots, J. Phys. Chem. C, 2017, 121:28498.

     

    15. Y. Wang, H.-Y. Wang, M. Yu, L.-M. Fu, Y. Qin, J.-P Zhang, X.-C. Ai, The Influence of Morphology and PbI2 on the Intrinsic Trap State Distribution in Perovskite Films Determined by Using Temperature-Dependent Fluorescence Spectroscopy, ChemPhysChem, 2017, 18:310.

     

    14. Y. Wang, H.-Y. Wang, J. Han, M. Yu, M.-Y. Hao, Y. Qin, L.-M. Fu, J.-P. Zhang, X.-C. Ai, The Influence of Structural Configuration on Charge Accumulation, Transport, Recombination, and Hysteresis in Perovskite Solar Cells, Energy Technol. 2017, 5:442.

     

    13. H.-Y. Wang, Y Wang (co-first author), M.-Y. Hao, Y Qin, L.-M. Fu, Z.-X. Guo, X.-C. Ai, J.-P. Zhang, Multiple-Trapping Model for the Charge Recombination Dynamics in Mesoporous-Structured Perovskite Solar Cells, ChemSusChem, 2017, 10:4872.

     

    12. S. Gupta, W.-Y. Wu, S. Chakrabortty, M. Li, Y. Wang, X. Ong, Y. Chan, Hierarchical Multicomponent Nanoheterostructures via Facet-to-Facet Attachment of Anisotropic Semiconductor Nanoparticles, Chem. Mater., 2017, 29:9075.

     

    11. H.-Y. Wang, Y. Wang (co-first author), M. Yu, J. Han, Z.-X. Guo, X.-C. Ai, J.-P. Zhang, Y. Qin, Mechanism of Biphasic Charge Recombination and Accumulation in TiO2 Mesoporous Structured Perovskite Solar Cells, Phys. Chem. Chem. Phys., 2016, 18:12128.

     

    10. M. Yu, Y. Wang (co-first author), H.-Y. Wang, J. Han, Y. Qin, J.-P. Zhang, X.-C. Ai, The Influence of Morphology on Charge Transport/Recombination Dynamics in Planar Perovskite Solar Cells, Chem. Phys. Lett., 2016, 662:257.

     

    9. J. Han, H.-Y. Wang, Y. Wang, M. Yu, S. Yuan, P. Sun, Y. Qin, Z.-X. Guo, J.-P. Zhang, X.-C. Ai, Efficient Promotion of Charge Separation and Suppression of Charge Recombination by Blending PCBM and its Dimer as Electron Transport Layer in Inverted Perovskite Solar Cells, RSC Adv., 2016, 6:112512.

     

    8. Y. Wang, D. Wu, L.-M. Fu, X.-C. Ai, D. Xu, J.-P. Zhang, Correlation between Energetic and Spatial Distribution of Intragap Trap States in the TiO2 Photoanode of Dye-Sensitized Solar Cell, ChemPhysChem, 2015, 16:2253.

     

    7. Y. Wang, H.-Y. Wang, M. Yu, L.-M. Fu, Y. Qin, J.-P Zhang, X.-C. Ai, Trap-Limited Charge Recombination in Intrinsic Perovskite Film and Meso-Superstructured Perovskite Solar Cells and the Passivation Effect of Hole-Transport Material on Trap States, Phys. Chem. Chem. Phys., 2015, 17:29501.

     

    6. D.-L. Gao, Y. Wang* (corresponding author), P. Zhang, L.-M. Fu, X.-C. Ai, J.-P. Zhang, New Insights into Electrolyte-Component Biased and Transfer- and Transport-Limited Charge Recombination in Dye-Sensitized Solar Cell, RSC Adv. 2015, 5:84959.

     

    5. X.-J. Shi, Y. Wang, D. P. Wu, Y. J. Qin, X.-C. Ai, D. S. Xu, J.-P. Zhang, The Influence of Hierarchical TiO2 Microspheres on the Trap State Distribution and Charge Transport/Recombination Dynamics in Quantum Dot Sensitized Solar Cells, RSC Adv., 2015, 15:17798.

     

    4. P. Zhang, Y. Wang, L.-M. Fu, X.-C. Ai, J.-P. Zhang, Application of a Simplified Diode Characteristic Model in Current-Voltage Curve Fitting and Evaluation of Photoelectric Parameters within Dye-Sensitized Solar Cell, Acta Phys. –Chim. Sin., 2015, 31(X):0001.

     

    3. Y. Wang, D. Wu, L.-M. Fu, X.-C. Ai, D. Xu, J.-P. Zhang, Density of State Determination of Two Types of Intra-Gap Traps in Dye-Sensitized Solar Cell and Its Influence on Device Performance, Phys. Chem. Chem. Phys., 2014, 16:11626.

     

    2. D. P. Wu, Y. Wang, H. Dong, F. Zhu, S. Gao, K. Jiang, L.-M. Fu, J.-P. Zhang, D. S. Xu, Hierarchical TiO2 Microspheres Comprised of Anatase Nanospindles for Improved Electron Transport in Dye Sensitized Solar Cells, Nanoscale, 2013, 5:324

     

    1. F. Zhu, H. Dong, Y. Wang, D. P. Wu, J. M. Li, J. L. Pan, Q. Li, X.-C. Ai, J.-P. Zhang, D. S. Xu, Dual-Functional Hetero-Structured TiO2 Nanotrees Composed of Rutile Trunks and Anatase Branches for Improved Performance of Quantum Dot-Sensitized Solar Cells, Phys. Chem. Chem. Phys., 2013, 15:17798.

  • Contact Informaiton

     

    Phone: +81-3-5841-7649

    Email: ywang@chem.s.u-tokyo.ac.jp

    Address: East Chemistry Building room 213, Hongo 7-3-1, Bunkyo-ku, Tokyo, Japan, 113-0033