Supercritical Continuous‐Microflow Synthesis of Narrow Size Distribution Quantum Dots
Samuel Marre(Massachusetts Institute of Technology), Jongnam Park(Massachusetts Institute of Technology), Jane Rempel(Massachusetts Institute of Technology), Juan Guan(Massachusetts Institute of Technology), Moungi G. Bawendi(Massachusetts Institute of Technology), Klavs F. Jensen(Massachusetts Institute of Technology)
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Abstract
CdSe quantum dots (QDs) with narrow size distribution are synthesized continuously in a pressurized high-temperature microreactor using supercritical hexane as the main solvent. The as-prepared QDs exhibit narrow photoluminescence emission (full-width at half-maximum as small as 25 nm, corresponding to σ = 4%), showing the advantages of supercritical-fluid synthesis compared to conventional high-boiling-point solvents.
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