Prof K. Yu
Applications accepted all year round
Funded PhD Project (Students Worldwide)
About the Project
Supervisor: Dr. Kui Yu.
Changjiang Chair Professor of Sichuan University. Executive Editor ACS Applied Materials and Interfaces
Colloidal semiconductor quantum dots (QDs) have unique size-dependent optical properties. These nanocrystals (NCs) have potential in many areas including light-emitting diodes, lasing, photovoltaics and bio-labelling/bio-imaging. So far, much work has been focusing on the synthesis of QDs with the control the size and size distribution. The bandgap absorption peak of conventional QDs is relatively broad, compared to magic-size clusters (MSCs). The size variation of the former is inevitable leading to inhomogeneous spectral line broadening. For the latter, the size distribution is tight and little inhomogeneous spectral line broadening is present. In a specific synthesized batch, MSCs are sometimes produced along with conventional QDs. The formation pathways of MSCs and conventional QDs remain unclear. Our research group focuses on these fundamental issues of the formation of colloidal NCs. The students are expected to synthesize colloidal NCs and characterize them by various techniques including optical absorption and photoluminescence spectroscopy, NMR, TEM, XRD and SAXS. Training will be provided by our group members.
You must have demonstrated research excellence with undergraduate/graduate-level experience in materials, polymer, or chemistry, …..
The areas of interest include (but are not limited to)
photoluminescent NC synthesis and characterization
organic synthesis or polymer synthesis
inorganic/organic hybrid synthesis
Skills in chemical synthesis and characterization, and experience with multidisciplinary/collaborative research opportunities will be an asset.
To explore this opportunity, please contact: Dr. Meng Zhang,
Email: [Email Address Removed]
You will know more about Dr. Kui Yu’s research: https://sites.google.com/site/kuiyunrc/home
You will be amazed by Chengdu Panda Base: http://www.panda.org.cn/english/
Funding Notes
The scholarship covers education-related cost with monthly stipends for up to four years.
References
(6) Yu, K. et al “Probing intermediates of the induction period prior to nucleation and growth of semiconductor quantum dots”. Nat. Commun. 2017, 8, 15467.
(5) Yu, K. et al “Two-Step Nucleation of CdS Magic-Size Nanocluster MSC–311”. Chem. Mater. 2017, 29, 5727.
(4) Yu, K. et al “General low-temperature reaction pathway from precursors to monomers before nucleation of compound semiconductor nanocrystals”. Nat. Commun. 2016, 7, 12223.
(3) Yu, K. et al “Mechanistic Study of the Role of Primary Amines in Precursor Conversions to Semiconductor Nanocrystals at Low Temperature” Angew. Chem. Int. Ed. 2014, 53, 6898.
(2) Yu, K. et al “The Formation Mechanism of Binary Semiconductor Nanomaterials: Shared by Single-Source and Dual-Source Precursor Approaches” Angew. Chem. Int. Ed. 2013, 52, 11034.
(1) Yu, K. et al “Effect of tertiary and secondary phosphines on low-temperature formation of quantum dots” Angew. Chem. Int. Ed. 2013, 52, 4823.
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