Electrical behaviour of discontinuous silver films deposited on softened polystyrene and poly (4-vinylpyridine) blends

Pattabi, Manjunatha; Parashar, P.; Gurumurthy, S. C.

doi:10.1007/s10854-008-9848-1

Cited by 11 publications

(5 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The shape of the nanoparticles changes from near spherical particles to irregular ellipsoidal particles. The average size of the particle increases from 79.4 to 95.4 nm and the size distribution expands from 50 -110 nm to 60 -160 nm which results in improvement of tunnelling effect in PS/P4VP, 50:50 [21]. It is evident that increase in size distribution decreases the inter-separation of silver clusters in this blend.…”

Section: Resultsmentioning

confidence: 84%

“…It is evident from the figure that distribution of size increased from 50 to 120 nm to 60 to 140 nm. Such dispersion of silver nanoparticle within the PS/P4VP, 75:25 leads to better electrical behaviour [21]. Such electric behaviour is not observed even for 300 nm silver particulate film on PS [22].…”

Section: Resultsmentioning

confidence: 91%

“…Hence, silver particulate films on PS/P4VP, 75/25 at low volume fraction of silver consist of isolated and widely dispersed nanoparticles. But systematic and controlled increase of silver volume in the PS/P4VP, 75:25 matrixes produced interesting result [21]. Figure 3 indicates modification in silver particulate films deposited on PS/P2VP composites.…”

Section: Resultsmentioning

confidence: 97%

“…Blending of polymers resulted in a requisite polymer matrix which shows modification in the morphology of films and hence improvement in tunnelling length in the film deposited on polymer composites. Blending of P2VP and P4VP with PS is expected to provide a polymer matrix where the size of silver clusters and intercluster separation can be modified because of dispersion, size distribution and impregnation depth results from the natures of polymeric hosts [20] [21]. Figure 2 clearly shows the particle sizes and inter-separation for PS/P4VP composites.…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Preparation and Characterization of Subsurface Silver Particulate Films on Polymer Blends of Polystyrene/Poly(2-vinylpyridine)/Poly(vinylpyrollidone)/Poly(4-vinylpyridine)

Pandey¹

2015

SNL

View full text Add to dashboard Cite

How to cite this paper: Pandey, P.P. (2015) Preparation and Characterization of Subsurface Silver Particulate Films on Polymer Blends of Polystyrene/Poly(2-vinylpyridine)/Poly(vinylpyrollidone)/Poly(4-vinylpyridine). Soft Nanoscience Letters, 5, 3-11. http://dx.Abstract Silver particulate thin films on softened polymer blends of Polystyrene (PS)/Poly(2-vinyl pyridine) (P2VP), PS/Poly(4-vinylpyridine) (P4VP), and Poly(vinylpyrollidone) (PVP)/P4VP at a rate of 0.4 nm/s held at a temperature of 457 K in vacuum of 8 × 10 −6 Torr by evaporation are deposited. These silver films were characterized by their electrical behavior, optical properties and Scanning electron microscopy (SEM). Silver films deposited on softened PS, and PVP give rise to a very high room temperature resistance approaching that of the substrate resistance due to the formation of a highly agglomerated structure. On the other hand, silver films on softened P2VP and P4VP give rise to a room temperature resistance in the range of tens to a few hundred MΩ/ which is desirable for device applications. Silver films on the composites of PS/P2VP, PS/P4VP and PVP/P4VP show resistances at room temperature. The optical and plasmonic response of Ag nanoparticles onto thin layers of blends shows encapsulation of nanoparticles. The electrical properties and SEM of silver nanoparticles on the thin layers of polymer blends indicate the formation of much smaller, narrower dispersion and wide size distribution.

show abstract

Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Preparation and Characterization of Subsurface Silver Particulate Films on Polymer Blends of Polystyrene/Poly(2-vinylpyridine)/Poly(vinylpyrollidone)/Poly(4-vinylpyridine)

Pandey¹

2015

SNL

View full text Add to dashboard Cite

show abstract

“…Thus, by selecting different polymer substrates with different chemical and physical nature it is possible to vary the morphology of the sub-surface particulate film. It has been shown that the electrical properties of the silver particulate films on an inert polymer like PS can be altered by blending it with an interacting polymer like P4VP [17].…”

Section: Introductionmentioning

confidence: 99%

Morphological changes in nanoparticulate silver films due to electron beam irradiation of polystyrene substrates

Pattabi

Gurumurthy

Sanjeev

et al. 2011

Nuclear Instruments and Methods in Physics Research Section B:

Self Cite

View full text Add to dashboard Cite

Morphology of silver particulate films deposited on softened polymer blends of polystyrene and poly (4‐vinylpyridine)

Parashar

2011

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Results of the morphological studies of silver particulate films deposited at a rate of 0.4 nm/s on polymeric blends of polystyrene (PS) and poly (4-vinylpyridine) (P4VP) held at a temperature 457 K by evaporation in a vacuum of 8 Â 10 À6 Torr are reported here. The morphology of silver particulate films was characterized by their size, size distribution, shape and interparticle separation. It has been observed that morphology depends on the composition of polymer matrix and the amount of silver deposited. The red shift in the plasmon resonance was observed with the increasing amount of P4VP in the blends in comparison to the pure PS. This indicates the modification in the silver particulate films deposited on the PS/P4VP blends. Scanning electron microscopy (SEM) was used to study the change in morphology of the silver nanoparticles and was correlated with the optical properties of silver particulate films on PS/P4VP blends. The silver nanoparticles deposited on the thin layers of polymer blends exhibit smaller size with narrower dispersion and wider size distribution due to blending of P4VP with PS.

show abstract

Electrical behaviour of discontinuous silver films deposited on softened polystyrene and poly (4-vinylpyridine) blends

Cited by 11 publications

References 13 publications

Preparation and Characterization of Subsurface Silver Particulate Films on Polymer Blends of Polystyrene/Poly(2-vinylpyridine)/Poly(vinylpyrollidone)/Poly(4-vinylpyridine)

Preparation and Characterization of Subsurface Silver Particulate Films on Polymer Blends of Polystyrene/Poly(2-vinylpyridine)/Poly(vinylpyrollidone)/Poly(4-vinylpyridine)

Morphological changes in nanoparticulate silver films due to electron beam irradiation of polystyrene substrates

Morphology of silver particulate films deposited on softened polymer blends of polystyrene and poly (4‐vinylpyridine)

Contact Info

Product

Resources

About