O.O. Otelaja, D.-H. Ha, T. Ly, H. Zhang, and R.D. Robinson, “Highly Conductive Cu2-xS Nanoparticle Films through Room Temperature Processing, and an Order of Magnitude Enhancement of Conductivity via Electrophoretic Deposition,” ACS Applied Materials and Interfaces 6, 18911–18920 (2014). http://dx.doi.org/10.1021/am504785f

October 23, 2014
Don and Caldwell’s work on 2D Cu2S-ZnS published
D.-H. Ha, A.H. Caldwell, M.J. Ward, S. Honrao, K. Mathew, R. Hovden, M.K.A. Koker, D.A. Muller, R.G. Hennig, and R.D. Robinson, “Solid-Solid Phase Transformations Induced through Cation Exchange and Strain, in 2D Heterostructured Copper Sulfide Nanocrystals,” Nano Letters 14, 7090–7099 (2014). http://dx.doi.org/10.1021/nl5035607
A.H. Caldwell, D.-H. Ha, X. Ding, and R.D. Robinson, “Analytical Modeling of Localized Surface Plasmon Resonance in Heterostructure Copper Sulfide Nanocrystals,” Journal of Chemical Physics 141, 164125-8 (2014). http://dx.doi.org/10.1063/1.4897635