Electrophoretic deposition of CdSe nanocrystal films onto dielectric polymer thin films

Hasan, Saad A.; Kavich, Dustin W.; Mahajan, Sameer; Dickerson, James H.

doi:10.1016/j.tsf.2008.10.122

Cited by 39 publications

(39 citation statements)

References 30 publications

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“…The electrodes were air-dried while maintaining an applied voltage to facilitate densification. 20 The deposits were classified into two regimes based on the applied electric field and current flowing through the EPD suspension, low field-high current and high field-low current. 9 The deposition current during EPD comprises two components, electrophoretic current and electrolytic current.…”

Section: Electrophoretic Deposition (Epd)mentioning

confidence: 99%

Electrophoretic deposition and characterization of Eu2O3 nanocrystal—Carbon nanotube heterostructures

Mahajan

Cho

Shaffer

et al. 2010

Journal of the European Ceramic Society

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Section: Electrophoretic Deposition (Epd)mentioning

confidence: 99%

Electrophoretic deposition and characterization of Eu2O3 nanocrystal—Carbon nanotube heterostructures

Mahajan

Cho

Shaffer

et al. 2010

Journal of the European Ceramic Society

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“…16 However, in the D-A BL film, emission intensity and peak wavelengths are steadily unvarying for both donors and acceptors over the measurement time-scale. To understand the cause behind the improved performance, we look at the recombination dynamics.…”

Section: Resultsmentioning

confidence: 99%

“…16,17 Colloidal suspensions of the QDs are prepared by diluting the as received material in 10 ml of hexane. The QDs deposit onto indium tin oxide substrates (R s ¼ 15-25 X; Delta Technologies), separated by a 5 mm gap in a parallel-plate capacitor configuration.…”

Section: Methodsmentioning

confidence: 99%

Increased photo-stability of quantum dots in segregated bilayer films

Shcherbatyuk

Talbot

Mandal

et al. 2013

Journal of Applied Physics

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Articles you may be interested inDetermining the exact number of dye molecules attached to colloidal CdSe/ZnS quantum dots in Förster resonant energy transfer assemblies J. Appl. Phys. 117, 024701 (2015); 10.1063/1.4905025 Thermal and structural dependence of the band gap of quantum dots measured by a transparent film heater Efficient energy transfer from hole transporting materials to CdSe-core CdS/ZnCdS/ZnS-multishell quantum dots in type II aligned blend films Appl. Phys. Lett. 99, 093106 (2011); 10.1063/1.3633110 Coexistence of type-I and type-II band lineups in Cd ( Te , Se ) ∕ Zn Se quantum-dot structuresWe report a comparative study of photo-stability of CdSe/ZnS quantum dots (QDs) in a variety of thin film samples. These include electrophoretically deposited single and differently sized segregated bilayer films and self-assembled mixed-sized films. Our studies follow static and dynamic QD photoluminescence over prolonged periods of photo-excitation and find that compared to both single-sized and mixed-sized films, the segregated bilayer samples exhibit highest photo-stability. These films show a QD emission quench rate of $2.5 times slower than the others and have almost negligible spectral shifts (<2 nm). Time-resolved measurements indicate very short inter-layer energy transfer (ET) time for the acceptor QDs in the bilayer, coupled with low ET efficiency for the donor dots. Further analysis reveals a complex interplay of intra-and inter-ensemble ET, with ET rates that have disparate spectral dependence between the mixed and bilayer films, and we conclude that this leads to the enhanced photo stability in the latter. Our findings provide a vital clue to the optimal design of QD based energy-harvesting structures. V C 2013 AIP Publishing LLC. [http://dx.

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“…Increased interest in EPD has arisen because of its specific advantages over other liquid-phase casting techniques, like: (a) size scalability (nanometer to meter scale); (b) low net cost of the technique, including equipment and materials; (c) reliability and repeatability; (d) versatility; and (e) site specificity of the deposited material. [15][16][17] Further, EPD is a straightforward approach that offers a simple design setup and substantial control over the thickness of the deposited NC films, even at rapid deposition rates. Recently, ordering has been observed during EPD in monolayers and multilayers of certain colloidal NCs, which may lead to the eventual production of highly ordered three-dimensional NC structures.…”

mentioning

confidence: 99%

Dipole moment-tuned packing of TiO2 nanocrystals into monolayer films by electrophoretic deposition

Gonzalo‐Juan

Krejci

Rodríguez

et al. 2014

Applied Physics Letters

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Enhancement of optical absorption by modulation of the oxygen flow of TiO2 films deposited by reactive sputteringThe magnitude of the electric dipole moment of TiO 2 nanocrystals was tuned as a function of the shape of the nanocrystal to facilitate the formation of tightly-packed monolayers, fabricated by electrophoretic deposition. The dipole moment aided the formation of monolayers with quasihexagonal ordering. Voronoi tessellation analysis confirmed that nanorods facilitated higher degrees of order than nanospheres. Thermal and dilatometric analyses demonstrate that the nanocrystals' sintering temperature was reduced below 1250 C-a useful development for device applications. V C 2014 AIP Publishing LLC. [http://dx.

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Electrophoretic deposition of CdSe nanocrystal films onto dielectric polymer thin films

Cited by 39 publications

References 30 publications

Electrophoretic deposition and characterization of Eu2O3 nanocrystal—Carbon nanotube heterostructures

Electrophoretic deposition and characterization of Eu2O3 nanocrystal—Carbon nanotube heterostructures

Increased photo-stability of quantum dots in segregated bilayer films

Dipole moment-tuned packing of TiO2 nanocrystals into monolayer films by electrophoretic deposition

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