Quantum dots (QD’s) show great promise as robust bioimaging agents. Their size-tunable, narrow emission peaks along with strong extinction coefficients and high photoluminescent quantum yields (QYPL) make them an excellent option for imaging experiments that require multiple fluorophores with long exposure times. To date, the most highly developed quantum dot material is based on the II-VI material CdSe/ZnS. These possess all the optical properties that make QD’s attractive for bioimaging. There is a great push, however, to replace this material due to concerns over toxicity of Cd2+. One alternative to CdSe/ZnS is based on the semiconductor material InP. Unfortunately, producing high quality QD’s with narrow emission and high QYPL of the III-V materials has been more difficult than with the II-VI materials. We will present out progress towards making InP-based nanocrystals with improved QYPL and emission peak widths.

Safer, high quality, Cd-free quantum dots- new and improved InP-based quantum dots with excellent optical properties as a viable alternative to Cd-containing quantum dots

254th National Meeting (2017)

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