Nanoscale Energy Research

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News

June 15, 2021

Congratulations to Anuj Bhargava for defending his PhD thesis

June 2, 2021

Welcome new grad student Jonathan Rowell!

June 1, 2021

Welcome new grad student Matthew Dykes!

January 7, 2021

welcome postdoc Mengyu Xu!

December 15, 2020

Frank and Anuj’s paper accepted in Chemistry of Materials

“Fe-cations Control the Plasmon Evolution in CuFeS₂ Nanocrystals,” Y. Yao, A. Bhargava, and R.D. Robinson, Chemistry of Materials (accepted 2020)

December 8, 2020

Anuj’s paper published as a cover in Advanced Materials

Our new paper in Advanced Materials paper is out, which shows that the standard model for conductivity in oxides, used for the last 60 years, is wrong. When an oxide has more than one cation type, the model breaks down. Using theory and experiment we show how to correct the model to accurately describe small polaron hopping in complex metal oxides. “Breakdown of the Small-Polaron Hopping Model in Higher-Order Spinels,” A. Bhargava, R. Eppstein, J. Sun, M.A. Smeaton, H. Paik, L.F. Kourkoutis, D.G. Schlom, M. Caspary Toroker^†, and R.D. Robinson^†, Advanced Materials 32, 2004490 (2020), DOI: 10.1002/adma.202004490 https://onlinelibrary.wiley.com/doi/epdf/10.1002/adma.202070368

December 7, 2020

welcome new Grad Student Quynh Sam!

July 31, 2020

Haixiang shows hierarchical complexity in clusters

We’ve created an inorganic assembly that assembles with hierarchical complexity, like biomolecules. Hierarchal self-assembly – the ordered arrangement of sub-units along multiple length scales – is important for biomolecules for the functions of life. DNA, RNA, and proteins all have primary, secondary, or more complex structures can form through self-folding or intermolecular interactions. But directing this self-assembly in the lab with inorganic materials is tricky. Previously, a group was able to assemble gold metal clusters with hierarchical complexity (https://science.sciencemag.org/content/354/6319/1580), but the core building blocks, the large gold nanoparticles are inert/non-reactive. Haixiang Han figured out how to use special ligands to form sulfur-bridged Cu13 clusters that can assemble in tertiary hierarchy. The copper has a range of oxidation states, making it potentially useful for catalysis. https://doi.org/10.1021/jacs.0c04764 “Tertiary Hierarchical Complexity in Assemblies of Sulfur-Bridged Metal Chiral Clusters,” H. Han, Y. Yao, Z. Wei, Z. Tang, J. Suntivich, O. Voznyy, and R.D. Robinson^†, J. Am. Chem. Soc. 142, 14495 (2020), DOI: 10.1021/jacs.0c04764

February 15, 2019

Curtis and Andrew’s Science paper published

C.B. Williamson*, D.R. Nevers*, A. Nelson, I. Hadar, U. Banin^†, T. Hanrath^†, R.D. Robinson^†, “Chemically Reversible Isomerization of Inorganic Clusters,” Science 363, 731 (2019) DOI: 10.1126/science.aau9464

December 28, 2018

Andrew’s paper on anomalously fast diffusion accepted

A. Nelson, S. Honrao, R. Hennig, R.D. Robinson, “Nanocrystal symmetry breaking and accelerated solid-state diffusion in the lead-cadmium sulfide cation exchange system." Chem. Mater. accepted (2018). DOI: 10.1021/acs.chemmater.8b04490 https://pubs.acs.org/doi/10.1021/acs.chemmater.8b04490

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