Thin films of organic dyes with silver nanoparticles: enhancement and spectral shifting of fluorescence due to excitation of localised surface plasmons

2016 ◽  
Vol 13 (8/9) ◽  
pp. 642 ◽  
Author(s):  
Nikita A. Toropov ◽  
Aisylu N. Kamalieva ◽  
Tigran A. Vartanyan
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Organic Dyes ◽  
Spectral Shifting

scholarly journals Monitoring the dispersion and agglomeration of silver nanoparticles in polymer thin films using localized surface plasmons and Ferrell plasmons

2020 ◽  
Vol 116 (10) ◽  
pp. 103105 ◽  
Author(s):  
Rafael C. Hensel ◽  
Murilo Moreira ◽  
Antonio Riul ◽  
Osvaldo N. Oliveira ◽  
Varlei Rodrigues ◽  
...  
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Polymer Thin Films ◽  
Localized Surface Plasmons

PHOTOEMISSION FROM THE DECAY OF SURFACE PLASMONS IN THIN FILMS OF Al

1973 ◽  
Vol 34 (C6) ◽  
pp. C6-95-C6-95
Author(s):  
T. A. CALLCOTT ◽  
E. T. ARAKAWA
Keyword(s):  
Thin Films ◽  
Surface Plasmons

Plasma polymerized allyl alcohol/O2 thin films embedded with silver nanoparticles

2016 ◽  
Vol 616 ◽  
pp. 339-347 ◽  
Author(s):  
Alaa Fahmy ◽  
Jörg Friedrich ◽  
Fabienne Poncin-Epaillard ◽  
Dominique Debarnot
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
Allyl Alcohol

scholarly journals Incorporation of Kojic Acid-Azo Dyes on TiO2 Thin Films for Dye Sensitized Solar Cells Applications

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Carolynne Zie Wei Sie ◽  
Zainab Ngaini
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Azo Dyes ◽  
Kojic Acid ◽  
Organic Dyes ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Thin Films ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Sensitization of heavy metal free organic dyes onto TiO2 thin films has gained much attention in dye sensitized solar cells (DSSCs). A series of new kojic acid based organic dyes KA1–4 were synthesized via nucleophilic substitution of azobenzene bearing different vinyl chains A1–4 with kojyl chloride 4. Azo dyes KA1–4 were characterized for photophysical properties employing absorption spectrometry and photovoltaic characteristic in TiO2 thin film. The presence of vinyl chain in A1–4 improved the photovoltaic performance from 0.20 to 0.60%. The introduction of kojic acid obtained from sago waste further increases the efficiency to 0.82–1.54%. Based on photovoltaic performance, KA4 achieved the highest solar to electrical energy conversion efficiency (η = 1.54%) in the series.

Silver Nanoparticles with an Armor Layer Embedded in the Alumina Matrix To Form Nanocermet Thin Films with Sound Thermal Stability

2014 ◽  
Vol 6 (14) ◽  
pp. 11550-11557 ◽  
Author(s):  
Junhua Gao ◽  
Chengjun Tu ◽  
Lingyan Liang ◽  
Hongliang Zhang ◽  
Fei Zhuge ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Silver Nanoparticles ◽  
Alumina Matrix

Refractive Index Tailoring of Poly(methylmethacrylate) Thin Films by Embedding Silver Nanoparticles

2012 ◽  
Vol 585 ◽  
pp. 134-138 ◽  
Author(s):  
Alisha Goyal ◽  
Jyoti Rozra ◽  
Isha Saini ◽  
Pawan K. Sharma ◽  
Annu Sharma
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
Refractive Index ◽  
Band Gap ◽  
Ag Nanoparticles ◽  
Nanocomposite Films ◽  
Ex Situ ◽  
Plasmon Resonance Peak ◽  
Pmma Matrix ◽  
Vis Spectroscopy

Nanocomposite films of Poly (methylmethacrylate) with different concentration of silver nanoparticles were prepared by ex-situ method. Firstly, silver nanoparticles were obtained by reducing the aqueous solution of silver nitrate with sodium borohydride then Ag-PMMA films were prepared by mixing colloidal solution of silver nanoparticles with solution of polymer. Thin solid films were structurally characterized using UV-VIS spectroscopy and TEM. The appearance of surface plasmon resonance peak, characteristic of silver nanoparticles at 420 nm in UV-VIS absorption spectra of Ag-PMMA films confirms the formation of Ag-PMMA nanocomposite. TEM showed Ag nanoparticles of average size 8 nm embedded in PMMA matrix. Analysis of absorption and reflection data indicates towards the reduction in optical band gap and increase in refractive index of the resulting nanocomposite. The synthesized Ag-PMMA nanocomposite has been found to be more conducting than PMMA as ascertained using I-V studies. The decrease in band gap and increase in conductivity can be correlated due to the formation of localized electronic states in PMMA matrix due to insertion of Ag nanoparticles. The PMMA thin films with dispersed silver nanoparticles may be useful for nanophotonic devices.

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