Aerogels from CdSe/CdS Nanorods with Ultra-long Exciton Lifetimes and High Fluorescence Quantum Yields.
Hydrogels are fabricated from CdSe/CdS seeded nanorod building blocks by the addition of hydrogen peroxide and converted to aerogels by supercritical drying. The aerogels show higher photoluminescence quantum yields and longer lifetimes than the hydrogels and the nanoparticle solutions. A model for this observation is derived.
Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany.
Sara
S
Sánchez-Paradinas
Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany.
Dirk
D
Dorfs
Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany.
Sebastian
S
Friebe
Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany.
Axel
A
Freytag
Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany.
Andreas
A
Wolf
Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstr. 3A, D-30167, Hannover, Germany.
Nadja C
NC
Bigall
D019187:Cadmium Compounds / Q000138:chemical synthesis / Q000737:chemistry; D005453:Fluorescence; D020100:Hydrogels / Q000138:chemical synthesis / Q000737:chemistry; D008027:Light; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes / Q000737:chemistry / Q000528:radiation effects*; D018036:Selenium Compounds / Q000138:chemical synthesis / Q000737:chemistry / Q000528:radiation effects*; D012996:Solutions; D013057:Spectrum Analysis; D014867:Water / Q000737:chemistry
D019187:Cadmium Compounds; D020100:Hydrogels; D018036:Selenium Compounds; D012996:Solutions; D014867:Water
(absolute) quantum yields; CdSe/CdS seeded nanorods; aerogels; radiative decays; semiconductor nanoparticles