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Controlled assembly of fluorescent multilayers from aqueous solution of CdTe nanocrystals and nonionic carbazole-containing copolymers
Zhang, H.; Zhou, Z.; Liu, K.; Wang, R.; Yang, B.
2003-04-01
Source PublicationJournal of Materials Chemistry
ISSN0959-9428
Pages1356-1361
Abstract

We report the controlled deposition of carbazole-containing copolymers and fluorescent CdTe nanocrystals in layer-by-layer (LbL) assembled films. In this strategy, poly(acrylic acid) (PAA) acts as an important medium to enhance the interaction between nonionic copolymers and aqueous CdTe nanocrystals. PAA has a strong coordinative interaction with CdTe nanocrystals in the acidic pH range via interaction between the carboxyl in PAA and the cadmium on the surface of CdTe. Meanwhile, the strong H-bonding interaction between PAA and pyridine groups in copolymers makes it possible to fabricate deposited film. As characterized by optical spectroscopy, IR spectroscopy and TEM, our results show that CdTe nanocrystals can be embedded into carbazole-containing copolymers using a LbL assembly technique. Moreover, the photoluminescence of the resultant films can be tuned by using copolymers with different ratios of pyridine/carbazole and CdTe solutions with different PAA concentrations. Our method provides a useful approach for the assembly of aqueous semiconductor nanocrystals and nonionic polymers with an accurately controlled layer component.

KeywordCdte Nanocrystals Copolymers
DOI10.1039/b212571d
URLView the original
Indexed BySSCI
Language英語English
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000182997400021
The Source to ArticlePB_Publication
Scopus ID2-s2.0-0038115304
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorYang, B.
Recommended Citation
GB/T 7714
Zhang, H.,Zhou, Z.,Liu, K.,et al. Controlled assembly of fluorescent multilayers from aqueous solution of CdTe nanocrystals and nonionic carbazole-containing copolymers[J]. Journal of Materials Chemistry, 2003, 1356-1361.
APA Zhang, H.., Zhou, Z.., Liu, K.., Wang, R.., & Yang, B. (2003). Controlled assembly of fluorescent multilayers from aqueous solution of CdTe nanocrystals and nonionic carbazole-containing copolymers. Journal of Materials Chemistry, 1356-1361.
MLA Zhang, H.,et al."Controlled assembly of fluorescent multilayers from aqueous solution of CdTe nanocrystals and nonionic carbazole-containing copolymers".Journal of Materials Chemistry (2003):1356-1361.
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