Ammonia pressure controls colloidal metal nitride synthesis in molten salts

The work on synthesis of colloidal GaN NCs was funded by the US Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division, under grant no. DE-SC0025256 and by the Samsung QD Cluster Collaboration. The work on the synthesis of TMN NCs and DFT computation was supported by the US National Science Foundation under grant no. CHE-2318105 (M-STAR CCI). Spectroscopic studies of nitride NCs were supported by the Department of Defense Air Force Office of Scientific Research under grant no. FA9550-22-1-0283. The mechanistic studies of high-pressure colloidal synthesis were supported by the National Science Foundation Science and Technology Center (STC) for Integration of Modern Optoelectronic Materials on Demand (IMOD) under award no. DMR-2019444. This work made use of the shared facilities at the University of Chicago Materials Research Science and Engineering Center, supported by the National Science Foundation under award no. DMR-2011854. Parts of this work were carried out at the Soft Matter Characterization Facility of the University of Chicago. Work performed at the Center for Nanoscale Materials, a US Department of Energy Office of Science User Facility, was supported by the US DOE, Office of Basic Energy Sciences, under contract no. DE-AC02-06CH11357.