Photoluminescence Enhancement of CdSe Quantum Dots: A Case of Organogel–Nanoparticle Symbiosis
作者： Prashant D. Wadhavane , Raquel E. Galian , M. Angeles Izquierdo , Jordi Aguilera-Sigalat , Francisco Galindo
DOI: 10.1021/JA310508R
关键词:
摘要: Highly fluorescent organogels (QD–organogel), prepared by combining a pseudopeptidic macrocycle and different types of CdSe quantum dots (QDs), have been characterized using battery optical microscopic techniques. The results indicate that the presence QDs not only does disrupt supramolecular organization internal fibrillar network organogel to significant extent, but it also decreases critical concentration gelator needed form stable thermoreversible organogels. Regarding photophysical properties QDs, trends were observed depending on ZnS inorganic shell around core. Thus, while core–shell preserve their in medium, high moderate increase fluorescence intensity (up 528%) average lifetime 1.7), respectively, was for core embedded organogel. are relevant development luminescent organog...
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C. Bullen, P. Mulvaney, The effects of chemisorption on the luminescence of CdSe quantum dots Langmuir. ,vol. 22, pp. 3007- 3013 ,(2006) , 10.1021/LA051898E
Wenchao Sheng, Sungjee Kim, Jinwook Lee, Sang-Wook Kim, Klavs Jensen, Moungi G. Bawendi, In-situ encapsulation of quantum dots into polymer microspheres. Langmuir. ,vol. 22, pp. 3782- 3790 ,(2006) , 10.1021/LA051973L
Yuangang Li, Minghua Liu, Fabrication of chiral silver nanoparticles and chiral nanoparticulate film via organogel. Chemical Communications. pp. 5571- 5573 ,(2008) , 10.1039/B812567H
Xuehai Yan, Yue Cui, Qiang He, Kewei Wang, Junbai Li, Organogels Based on Self-Assembly of Diphenylalanine Peptide and Their Application To Immobilize Quantum Dots Chemistry of Materials. ,vol. 20, pp. 1522- 1526 ,(2008) , 10.1021/CM702931B
Jorge Becerril, M. Isabel Burguete, Beatriu Escuder, Francisco Galindo, Raquel Gavara, Juan F. Miravet, Santiago V. Luis, Gabriel Peris, Self-assembly of small peptidomimetic cyclophanes. Chemistry: A European Journal. ,vol. 10, pp. 3879- 3890 ,(2004) , 10.1002/CHEM.200400031
Jeremiah A. Kloepfer, Stephen E. Bradforth, Jay L. Nadeau, Photophysical Properties of Biologically Compatible CdSe Quantum Dot Structures Journal of Physical Chemistry B. ,vol. 109, pp. 9996- 10003 ,(2005) , 10.1021/JP044581G
Clemens Burda, Xiaobo Chen, Radha Narayanan, Mostafa A. El-Sayed, Chemistry and properties of nanocrystals of different shapes. Chemical Reviews. ,vol. 105, pp. 1025- 1102 ,(2005) , 10.1021/CR030063A
M. Isabel Burguete, Francisco Galindo, Raquel Gavara, M. Angeles Izquierdo, João C. Lima, Santiago V. Luis, A. Jorge Parola, Fernando Pina, Use of Fluorescence Spectroscopy To Study Polymeric Materials with Porous Structure Based on Imprinting by Self-Assembled Fibrillar Networks Langmuir. ,vol. 24, pp. 9795- 9803 ,(2008) , 10.1021/LA801342F
Jenifer Rubio, M. Angeles Izquierdo, M. Isabel Burguete, Francisco Galindo, Santiago V. Luis, Photoluminescence of CdSe/ZnS core–shell quantum dots stabilized in water with a pseudopeptidic gemini surfactant Nanoscale. ,vol. 3, pp. 3613- 3615 ,(2011) , 10.1039/C1NR10680E
Maria J. Ruedas-Rama, Angel Orte, Elizabeth A. H. Hall, Jose M. Alvarez-Pez, Eva M. Talavera, Effect of surface modification on semiconductor nanocrystal fluorescence lifetime. ChemPhysChem. ,vol. 12, pp. 919- 929 ,(2011) , 10.1002/CPHC.201000935