BIT makes progress in research on doped semiconductor nanocrystals and energy chemistry applications

In the past three years, the research team of Professor Zhang Jiatao from the School of Materials Science and Engineering of Beijing Institute of Technology has used phosphine ligands such as TBP and PPh3 to initiate ion exchange reactions between amorphous semiconductor nanoparticles of doped ions and host semiconductor cations, regulate the thermodynamic and kinetic processes of the reactions, and achieve heterovalent substitution doping of doped ions at deep locations in semiconductor nanocrystals (II-VI groups, etc.).

The team's research results have been published in SCI journals Angewandte Chemie (Angewandte Chem. Int. Ed. 2015, 54, 3683-3687), Advanced Materials (Adv. Mater. 2015, 27, 2753-2761), NPG Asian Mater. (2015) 7, e152; doi:10.1038/am.2014.120) and the American Journal of Physical Chemistry C (J. Phys. Chem. C 2017, 121, 6152?6159).

In view of the team's original research progress in this field, the Journal of Physical Chemistry Letters recently invited Professor Zhang Jiatao to write a perspective paper titled "Heterovalent doping in Colloidal Semiconductor Nanocrystals: Cation Exchange-Enabled New Accesses to Tuning Dopant Luminescence and Electronic Impurities" (J. Phys. Chem. Lett. 2017, 8, 4943-4953). The paper was also featured on the cover and video of the American Chemical Society website.