Formation, structure and photoelectrical properties of poly-p-xylylene–PbS semiconductor nanocomposite films

Nikolaeva, Elena V.; Ozerin, S. A.; Grigoriev, A.E; Grigoriev, E. I.; Чвалун, С. Н.; Герасимов, Г. Н.; Трахтенберг, Л. И.

doi:10.1016/s0928-4931(99)00008-9

Cited by 35 publications

(17 citation statements)

References 23 publications

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“…Nanocomposites produced in a heterogeneous mixture (water) have the form of nanocables up to 10 µm in length, with a PbS core diameter of 30 nm and PVAc shell diameter of 80 nm. Note yet another interesting process for the fabrication of nanocomposites: Nikolaeva et al [179] synthesized poly(pxylylene)-PbS nanocomposite films via evaporation and concurrent cocondensation of p-xylylene and PbS. The particle size distribution of PbS was shown to peak at 4 nm, with a full width at half maximum of about 2 nm.…”

Section: Metal Chalcogenide-polymer Inclusion Nanocompositesmentioning

confidence: 99%

Hybrid Intercalative Nanocomposites

Pomogailo

2005

Inorg Mater

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This review focuses on organic-inorganic hybrid nanocomposites, a research area that has made rapid progress in recent years. Inorganic components (hosts) include both natural materials (clays, silicates, smectites, layered phosphates, and others) and compounds prepared by different synthetic techniques. Into their interlayer spaces, various organic guests-solvents, monomers, and polymers-can be intercalated. Among the hybrid nanocomposites analyzed in detail are those based on polyconjugated electrically conducting polymers, such as poly(aniline) and poly(pyrrole), and various mineral matrices. Particular attention is paid to polymermetal chalcogenide nanocomposites and their applications as semiconducting materials. One of the most common and practically important intracrystalline processes in the fabrication of hybrid nanocomposites is the incorporation of monomer molecules into pores of the host, followed by controlled internal transformations into polymer, oligomer, or hybrid-sandwich products (in situ postintercalative transformations). This approach is often called "ship-in-the-bottle" polymerization. Another widely used approach is the incorporation of macromolecules into layered host lattices from solutions or melts. This process offers the possibility of producing graphite intercalation compounds and inorganic-organic multilayer composites, including self-assembled nanocomposites in the form of ( P / M ) n multilayers, where M and P are oppositely charged inorganic and polymer nanolayers. S48 INORGANIC MATERIALS Vol. 41 Suppl. 1 2005 POMOGAILO

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Section: Metal Chalcogenide-polymer Inclusion Nanocompositesmentioning

confidence: 99%

Hybrid Intercalative Nanocomposites

Pomogailo

2005

Inorg Mater

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“…Recently PPX was doped with metals and semiconductors [20,47]. Films exhibited good sensitivity to various gasses; they can be used in sensors.…”

Section: Dye-filled Polyparaxylylene Films Prepared By Co-depositionmentioning

confidence: 99%

“…Composite films were also obtained by co-deposition of metal and di-radicals of paraxylylene. The films were used as gas sensitive elements [20].…”

Section: Introductionmentioning

confidence: 99%

Nanoclusters in polymer matrices prepared by co-deposition from a gas phase

Grytsenko

Schrader

2005

Advances in Colloid and Interface Science

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“…This effect is manifested most profoundly by lead sulfide nanoparticles [11][12][13][14], which is a low dimensional semiconductor with the forbidden band width of E g = 0.29 eV at 0 K and 0.41 eV at 300 K [15]. Lead sulfide is used to prepare photoresistors and IR sensors, as well as lasers and light emitting diodes.…”

Section: Introductionmentioning

confidence: 99%

“…The thickness of coatings can be varied from several nanometers to microns; therefore, the concentration of an inorganic component can be readily regulated. Earlier wide (WAXS) and small angle (SAXS) X ray scattering were used to study in detail the structure of poly p xylylene-PbS nanocomposites [13,14]. The modification of the polymeric matrix structure at high concentrations of sulfide was revealed: the intensity of reflexes corresponding to the low temperature form of PPX decreased and new peaks typical for high tem perature form of PPX arose; data on the particle size distribution was presented in the same manner.…”

Section: Introductionmentioning

confidence: 99%

Structure and optical properties of poly-p-xylylene-lead sulfide nanocomposites derived by vapor deposition polymerization

et al. 2012

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The polymeric poly p xylylene-lead sulfide nanocomposites bearing from 1 to 10 vol % sulfide have been produced by vapor deposition polymerization. The correlation between the sulfide concentration and nanoparticle sizes is established by wide (WAXS) and small angle (SAXS) X ray scattering. It is found that, with an increase in PbS concentration, the mean sulfide particle size increases from 3.3 to 6.8 nm and the distance between them extends from 3.7 to 7.3 nm. The particle sizes are determined from the optical absorption spectra by the effective mass approximation. A hypsochromic shift in the absorption band edge is detected that reaches over 2500 nm relative to the band edge of bulk PbS. In the range of 900-1500 nm, the fluorescence of lead sulfide has been observed and the band maximum is shown to be able to shift by more than 200 nm, depending on the sulfide concentration.

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Formation, structure and photoelectrical properties of poly-p-xylylene–PbS semiconductor nanocomposite films

Cited by 35 publications

References 23 publications

Hybrid Intercalative Nanocomposites

Hybrid Intercalative Nanocomposites

Nanoclusters in polymer matrices prepared by co-deposition from a gas phase

Structure and optical properties of poly-p-xylylene-lead sulfide nanocomposites derived by vapor deposition polymerization

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