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DiagNano™ CdTeSeS Type-II Quantum Dots, 800 nm (# DNB-N011) are stabilized with octadecylamine, and specially designed to type II structure, allowing the shell to comfine only one of the charge carriers (electrons/holes). Due to the structure, the dots are more tunable for PL emission from 650 nm to over 900 nm. PL FWHM (nm): <150 nm. UV-Vis FWHM (nm): <100 nm.