个人简介

1983, B.S.in Chemistry, Fudan University, Shanghai, China 1989, Ph.D., University of Washington, Seattle 1992, Postdoctoral Fellows, UC Berkeley

研究领域

Design, synthesis, characterization and application of nanomaterials, including semiconductor, metal, and metal oxides; femtosecond laser and optical spectroscopy; ultrafast dynamics in condensed phases and at interfaces; solar energy conversion and hydrogen generation and storage; cancer biomarker detection.

The Zhang research group is primarily interested in the design, development, characterization, and application of advanced materials with emphasis on optical and electronic nanomaterials (nanocrystals or quantom dots) of both semiconductors and metals. These nanomaterials have novel physical and chemical properties due to quantum confinement and exceedingly large surface to volume ratio. The design and synthesis of the materials are mostly based on inorganic colloidal chemistry methods. The synthesized materials are characterized systematically and extensively using a variety of experimental techniques including SERS (surface-enhanced Raman scattering), optical spectroscopy, ultrafast laser, x-ray (XAFS, XPS), ESR, electrochemical, and microscopy. In the meantime, the group actively explores emerging technological applications of these advanced nanomaterials in areas such as solar energy conversion, hydrogen generation and storage, cancer biomarker detection, photocatalysis, sensors, imaging, detectors, and lasers. A number of projects have been accomplished and several are currently under investigation. Some examples of on-going projects include: 1. Surface-enhanced Raman scattering (SERS) based on Au and Ag nanoparticles/aggregates and development of SERS sensors for chemical and biomedical detection with emphasis on cancer biomarkers including antigens and antibodies of ovarian and lung cancers. 2. Ultrafast interfacial electron dynamics and surface modification of semiconductor nanoparticles: CdS, CdSe, CdTe, PbS, Ag2S, CuS. Biocnjugation of semiconductor quantum dots to proteins for biomedical cancer detection based on photoluminescence 3. Hydrogen generation and storage based on novel semiconductor, oxide, and metal nanostructures including nanowires and nanorods via photoelectrochemistry or photocatalysis. 4. Photoluminescence and up-conversion luminescence of doped semiconductor nanoparticles: Mn2+ and Cu+ doped ZnS, ZnSe, CdS nanoparticles 5. Solar energy conversion based on dye, polymer, or quantum dot sensitized nanocrystalline TiO2, WO3, or ZnO solar cells, in conjunction with N-doping, using conjugated polymers as solid electrolytes 6. Hot electron relaxation in metal nanoparticles and nanoparticle aggregates: Ag, Au, Pd, and Pt 7. Photothermal imaging and ablation therapy of cancer cells using hollow gold nanoshells (HGNs)

近期论文

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Gongming Wang, Yichuan Ling, Hanyu Wang, Xunyu Yang, Changchun Wang, Jin Z. Zhang, and Yat Li ""Substoichiometric WO3-x (x<0.1) Nanoplates Show Enhanced Stability and Photoactivity for Water Oxidation"", Eneergy Env. Science, in press 2012. Sheraz Gul, J. K. Cooper, C. Corrado, Brian Vollbrecht, F. Bridges, Jinghua Guo, and J. Z. Zhang, ""Synthesis, optical properties, and exciton relaxation dynamics of stable Cu-doped ZnSe nanocrystals"", J. Phys. Chem. C, 115, 20864-20875, 2011. GongColeman X. Kronawitter, Jonathan R. Bakke, Damon Wheeler, Wei-Cheng Wang, Chinglin Chang, Bonnie R. Antoun, Jin Z. Zhang, Jinghua Guo, Stacey F. Bent, Samuel S. Mao, Lionel Vayssieres, ""Electron enrichment in 3d transition metal oxide heteronanostructuress"" Nano Letters, 11, 3855-3861, 2011. George K. Larsen, Robert Fitzmorris, Jin Z. Zhang, and Yiping Zhao, ""Structural, optical, and photocatalytic properties of Cr:TiO2 nanorod array fabricated by oblique angle co-deposition"", J. Phys. Chem. C, 115, 16892-16903, 2011.. Gongming Wang, Yichuan Ling, Damon A. Wheeler, Kyle E. N. George, Kim Horsley, Clemens Heske, Jin Z. Zhang, Yat Li, ""Facile synthesis of highly photoactive alpha-Fe2O3-based films for water oxidation"", Nano Letters, 11, 3503-3509, 2011. Jason K. Cooper, Alexandra M. Franco, Sheraz Gul, Carley Corrado, Jin Z. Zhang, ""Characterization of Primary Amine Capped CdSe, ZnSe, and ZnS Quantum Dots by FT-IR: Determination of Surface Bonding Interaction and Identification of Selective Desorption"", Langmuir, 27, 8486-8493, 2011. Wilson Smith, Abe Wolcott, R. FitzmGongming Wang, Hanyu Wang, Yichuan Ling, Chaoyue Tang, Xunyu Yang, Robert K. Fitzmorris, Changchun Wang, Jin Z. Zhang, and Yat Li, ""Hydrogen-treated TiO2 nanowire arrays for photoelectrochemical water splitting"", Nano Letters, 11, 3026-3033, 2011. Carley Corrado, Jason Cooper, Morgan Hawker, Jennifer Hensel, Grant Livingston, Sheraz, Brian Vollbrecht, Franl Bridges, and Jin Z. Zhang, ""Synthesis and Characterization of Organically Soluble Cu-doped ZnS Nanocrystals with Br Co-activator"", J. Phys. Chem. C, 115, 14559-14570, 2011. Xuan Yang, Claire Gu, Fang Qian, Yat Li, and Jin Z. Zhang, ""Highly Sensitive Detection of Proteins and Bacteria in Aqueous Solution Using Surface-Enhanced Raman Scattering and Optical Fibers"" Analytical Chemistry, 83, 5888-5894, 2011. Li Yuan, Qianqian Tang, Dong Yang, Jin Zhong Zhang, Fayong Zhang, and Jianhua Hu, ""Preparation of pH-Responsive Mesoporous Silica Nanoparticles and Their Application in Controlled Drug Delivery"", J. Phys. Chem. 115, 9926-9982, 2011. Y. Ling, G. Wang, D. Wheeler, J. Z. Zhang, and Y. Li, ""Sn-doped hematite nanostructures for photoelectrochemical water splitting"", Nano Letters, 11(5), 2119-2125, 2011. Jin Z. Zhang, ""Challenges and opportunities in light and electricity energy conversion"", J. Phys. Chem. Lett. (editorial), 2, 1351-1352, 2011.