Bjorgaard, Josiah A.’s team published research in Journal of Applied Physics (Melville, NY, United States) in 113 | CAS: 10510-54-0

Journal of Applied Physics (Melville, NY, United States) published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Safety of 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate.

Bjorgaard, Josiah A. published the artcileAmplified quenching of conjugated polymer nanoparticle photoluminescence for robust measurement of exciton diffusion length, Safety of 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, the publication is Journal of Applied Physics (Melville, NY, United States) (2013), 113(20), 203707/1-203707/6, database is CAplus.

A new method for measuring exciton diffusion length in nanoparticles (NPs) of conjugated materials is presented. Cationic acceptor dyes are used to quench the photoluminescence in NPs of the prototypical conjugated polymer poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV). Amplified quenching of MEH-PPV emission is observed with an initial Stern-Volmer constant >105 M-1. Stern-Volmer plots are nonlinear with 2 distinct quenching regimes, hinting saturation of NP surfaces with acceptor mols. at some point during titration experiments Using an assumption that highly efficient quenching of excitons occurs after saturation with acceptors at the NP surfaces, the amount of maximum emission quenching can be compared with a model of exciton diffusion to determine exciton diffusion length. By assuming quenching efficiency >80%, the measured 3 dimensional exciton diffusion length is 12 ¡À 1 nm. This result is in the lower region of reported values ranging from 10 to 25 nm in MEH-PPV thin films. Both the derived model and the exptl. methodol. allow robust measurement of exciton diffusion length for any luminescent conjugated material from which NPs can be prepared (c) 2013 American Institute of Physics.

Journal of Applied Physics (Melville, NY, United States) published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Safety of 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia