Aqueous synthesis of CdTe quantum dot using dithiol-functionalized ionic liquid

Suk Young Choi, Jong Pil Shim, Dong Sun Kim, Taeyoung Kim, Kwang S. Suh

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We report on an aqueous synthesis of cadmium telluride (CdTe) nanocrystals by using dithiol-functionalized ionic liquids (dTFILs). The dTFILs were designed to have dithiol and vinylimidazolium functional groups and used as a ligand molecule of CdTe quantum dot (QD) to utilize the bidendate chelate interaction afforded by the dithiol groups of dTFILs. The photoluminescence quantum yield of dTFIL-capped CdTe QDs reached up to ∼40, and their luminescent property was maintained for 8 weeks, suggesting an improved stability in water phase. This approach will provide a new synthetic route to the water soluble QDs.

Original languageEnglish
Article number519458
JournalJournal of Nanomaterials
Publication statusPublished - 2012

ASJC Scopus subject areas

  • Materials Science(all)


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