Campus Units
Chemistry, Materials Science and Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
10-3-2007
Journal or Book Title
Journal of the American Chemical Society
Volume
129
Issue
42
First Page
12828
Last Page
12833
DOI
10.1021/ja074133x
Abstract
Nanocomposites of poly(3-hexylthiophene)−cadmium selenide (P3HT−CdSe) were synthesized by directly grafting vinyl-terminated P3HT onto [(4-bromophenyl)methyl]dioctylphosphine oxide (DOPO-Br)-functionalized CdSe quantum dot (QD) surfaces via a mild palladium-catalyzed Heck coupling, thereby dispensing with the need for ligand exchange chemistry. The resulting P3HT−CdSe nanocomposites possess a well-defined interface, thus significantly promoting the dispersion of CdSe within the P3HT matrix and facilitating the electronic interaction between these two components. The photophysical properties of nanocomposites were found to differ from the conventional composites in which P3HT and CdSe QDs were physically mixed. Solid-state emission spectra of nanocomposites suggested the charge transfer from P3HT to CdSe QDs, while the energy transfer from 3.5 nm CdSe QD to P3HT was implicated in the P3HT/CdSe composites. A faster decay in lifetime further confirmed the occurrence of charge transfer in P3HT−CdSe nanocomposites.
Copyright Owner
American Chemical Society
Copyright Date
2007
Language
en
File Format
application/pdf
Recommended Citation
Xu, Jun; Wang, Jung; Mitchell, Mike; Mukherjee, Prasun; Jeffries-EL, Malika; Petrich, Jacob W.; and Lin, Zhiqun, "Organic−Inorganic Nanocomposites via Directly Grafting Conjugated Polymers onto Quantum Dots" (2007). Chemistry Publications. 562.
https://lib.dr.iastate.edu/chem_pubs/562
Included in
Materials Science and Engineering Commons, Organic Chemistry Commons, Physical Chemistry Commons
Comments
Reprinted (adapted) with permission from Journal of the American Chemical Society 129 (2007): 12828, doi: 10.1021/ja074133x. Copyright 2007 American Chemical Society.