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Wei-Chang D. Yang

Wei-Chang (David) Yang is a UMD Postdoctoral Researcher in Nanoscale Imaging Group. He received a B.S. and a M.S. in Materials Science and Engineering from the National Tsing Hua University, Taiwan and a Ph.D. in Materials Engineering from Purdue University. For his doctoral research, he fabricated and characterized nanoparticle ink-based kesterite thin-film solar cells. He developed a characterization protocol to study multinary semiconductor nanoparticles and thin-films for photovoltaic devices using analytical transmission electron microscopy (AEM). David is working with Renu Sharma designing an in situ vibrational and optical spectroscopy platform integrated with an environmental transmission electron microscope (ETEM) for the measurements of Raman and cathodoluminescence excitations.

Selected Publications

  • Inhomogeneous Multinary Nanoparticles: A case study of Cu2ZnSnS4 nanoparticles. W.-C. Yang, C. K. Miskin, N. J. Carter, E. A. Stach, and R. Agrawal, Chemistry of Materials 26, 6955-6962 (2014).
  • Kesterite Cu2ZnSn(S,Se)4 Absorbers Converted from Metastable, Wurtzite-Derived Cu2ZnSnS4 Nanoparticles, W.-C. Yang, C. K. Miskin, C. J. Hages, E. C. Hanley, E. A. Stach, and R. Agrawal, Chemistry of Materials 26, 3530-3534 (2014).
  • 9.0% Efficient Cu2ZnSn(S,Se)4 Solar Cells from Selenized Nanoparticle Inks, C. K. Miskin, W.-C. Yang, C. J. Hages, N. J. Carter, C. S. Joglekar, E. A. Stach, and R. Agrawal, Progress in Photovoltaics: Research and Applications doi: 10.1002/pip.2472 (2014).


Low-temperature growth of carbon nanotubes catalyzed by sodium-based ingredients

Renu Sharma, Richard Li, Erica F. Antunes, Estekke Cohen, Akira Kudo, Luiz Acauan, Wei-Chang D. Yang, Chih-Ming Wang, Kehang Cui, Andrew Liotta, Ananth G. Rajan, Jules Gardner, David C. Bell, Michael S. Strano, James A. Liddle, Brian L. Wardle
Nanoparticle-catalytic synthesis of carbon nanostructures is an attractive route for producing 1-dimensional carbon nanomaterials, such as carbon nanotubes1
Created July 30, 2019, Updated October 9, 2019