Academic literature on the topic 'DO-25 doped PMMA-MA films'

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Journal articles on the topic "DO-25 doped PMMA-MA films"

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Sreeramana, Aithal, Aithal Shubrajyotsna, and K. Bhat G. "Study of Third Order Optical Nonlinearity in Disperse Orange-25 Dye-doped Polymer Films using CW Laser." International Journal of Applied Engineering and Management Letters (IJAEML) 1, no. 1 (2017): 18–35. https://doi.org/10.5281/zenodo.818692.

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The organic materials with the ability of self-focusing/defocusing through their light intensity-dependent refractive index and phase shift properties are potential materials in all-optical photonic devices have become an interesting topic of continuous research. Several organic materials including dye-doped polymer films are attracting many researchers due to their advantages in terms of enhanced efficiency, and acceptable mechanical properties to fabricate useful devices. In this paper, we have reported the nonlinear optical properties like nonlinear absorption and nonlinear refraction of an
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Shubhrajyotsna, Aithal, P. S. Aithal, and G. K. Bhat. "Comparative Study on Azo dye-doped Polymer Films for Optical Phase Conjugation." International Journal of Science and Research 4, no. 4 (2015): 436–41. https://doi.org/10.5281/zenodo.61724.

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In this paper, we have studied the linear optical properties and nonlinear optical Phase Conjugation properties of two azo-dye-doped polymer films by considering organic dyes disperse orange (DO-25) and disperse yellow (DY-7) doped in a polymer matrix Polymethyl methacrylate methacrylic acid (PMMA-MA). The nonlinear optical phase conjugation properties are studied using Degenerate Four-Wave Mixing set-up using 532 nm wavelength CW laser beam. The effect of dye concentration, the intensity of backward, forward pump, and the inter-beam angle between the probe and forward pump beam
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Shubrajyotsna, Aithal, S. Aithal P., and K. Bhat G. "TYPE 1 & TYPE 2 OPTICAL LIMITING STUDIES IN DISPERSE ORANGE-25 DYE-DOPED PMMA-MA POLYMER FILMS USING CW LASER." International Journal of Applied and Advanced Scientific Research 1, no. 1 (2016): 196–208. https://doi.org/10.5281/zenodo.208184.

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Materials with exceptional third order nonlinear optical properties are critical to the continuing development of photonics and electro-optical devices such as those used in optical communications, networking, optical computation for signal processing, and data storage devices. The nonlinear optical material research is generally focussed on improving the efficiency of optical wavelength conversion, optical amplification, nonlinear absorption, refractive index changes etc. which are input light intensity dependent. During last few years, the organic dye-doped polymer films are getting more att
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Shubhrajyotsna, Aithal, P. S. Aithal, and G. K. Bhat. "A Review on Organic Materials for Optical Phase Conjugation & All-optical Switches." International Journal of Management, IT and Engineering (IJMIE) 6, no. 1 (2016): 222–38. https://doi.org/10.5281/zenodo.62027.

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Nonlinear optical materials with optimum properties are essential in continuous development of photonic and electro-optical devices, used in optical communications, networking, optical computation for signal processing, and data storage equipments. The changing trend is to use organic materials/dyes that exhibit exceptional nonlinear optical properties instead of conventional materials which have comparatively low nonlinear properties. These organic materials/dyes are easy to prepare in solution or solid form. The resulting organic material has a low dielectric constan
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An, Ha-Rim, Hyelan An, Doh-Hyung Riu, and Hyo-Jin Ahn. "Improved Photovoltaic Properties Of Dye-Sensitized Solar Cells Using Laser Patterned F-Doped SnO2 Thin Films." Archives of Metallurgy and Materials 60, no. 2 (2015): 1241–45. http://dx.doi.org/10.1515/amm-2015-0106.

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Abstract We modified the surfaces of F-doped SnO2 thin films using laser patterning to improve the photovoltaic properties of dye-sensitized solar cells. To do so, we varied the laser power density and the distance between laser-patterned lines. First, we investigated three power densities. Higher densities led to higher sheet resistances owing to increases in surface roughnesses. The lowest power density increased surface roughness without electrical degradation. Next, we explored three line spacings at a fixed power density. The films with the narrowest spacing exhibited the highest power co
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Aivalioti, Chrysa, Maria Androulidaki, Katerina Tsagaraki, et al. "The Effect of Nitrogen as a Co-Dopant in p-Type NiO:Nb Films on the Photovoltaic Performance of NiO/TiO2 Transparent Solar Cells." Solids 5, no. 4 (2024): 651–64. https://doi.org/10.3390/solids5040044.

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Doping engineering has been applied in niobium-doped NiO (NiO:Nb) by adding nitrogen (N) in its structure. The rf-sputtered films were made from a Ni-Nb composite target on unheated substrates at 300 W rf power and 5 mTorr total pressure. The plasma contained 50% Ar and 50% O2 for the fabrication of the single-doped NiO:Nb film (AΝ film), and N2 gas for the incorporation of N in the Ni-O-Nb structure. The N2 in plasma was introduced by keeping constant the flow rates of O2 and N2 gasses (O2/N2 = 1) and reducing the amount of Ar gas, namely 94% Ar, 3% O2, and 3% N2 (film AN1); 50% Ar, 25% O2, a
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Papagiannis, Ioannis, Elias Doukas, Alexandros Kalarakis, George Avgouropoulos, and Panagiotis Lianos. "Photoelectrocatalytic H2 and H2O2 Production Using Visible-Light-Absorbing Photoanodes." Catalysts 9, no. 3 (2019): 243. http://dx.doi.org/10.3390/catal9030243.

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Hydrogen and hydrogen peroxide have been photoelectrocatalytically produced by electrocatalytic reduction using simple carbon electrodes made by depositing a mesoporous carbon film on carbon cloth. Visible-light-absorbing photoanodes have been constructed by depositing mesoporous CdS/TiO2 or WO3 films on transparent fluorine-doped tin oxide (FTO) electrodes. Both produced substantial photocurrents of up to 50 mA in the case of CdS/TiO2 and 25 mA in the case of WO3 photoanodes, and resulting in the production of substantial quantities of H2 gas or aqueous H2O2. Maximum hydrogen production rate
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Zhao, Yunpeng, Hari Bala, Fei Cheng, Yingjie Wen, and Boji Wang. "Preparation and Properties of MA0.9FA0.1PbI3 Perovskite Solar Cells by Br- doping." Academic Journal of Science and Technology 14, no. 3 (2025): 264–73. https://doi.org/10.54097/v4s1em69.

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In this study, under fixed cation stoichiometry, the effects of Br⁻ doping with varying ratios on the structural and optoelectronic properties of perovskite films and corresponding device performance were systematically investigated. The substitution of Br⁻ for partial I⁻ in the perovskite lattice demonstrated significant morphological refinement and enhanced crystallographic quality, as evidenced by reduced defect density and grain boundary formation. The optimized composition, MA₀.₉FA₀.₁PbI₂.₈₅Br₀.₁₅, exhibited superior film uniformity and crystallinity, which translated into improved photov
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RUSOP, M., T. SOGA, T. JIMBO, M. UMENO, and M. SHARON. "ELECTRONIC DOPING OF AMORPHOUS CARBON THIN FILMS." Surface Review and Letters 12, no. 04 (2005): 579–86. http://dx.doi.org/10.1142/s0218625x05007463.

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This paper reports on the successful deposition of boron ( B )-doped p-type ( p-C:B ) and phosphorus ( P )-doped n-type ( p-C:P ) carbon ( C ) films, and the fabrication of p-C:B on silicon ( Si ) substrate ( p-C:B/n-Si ) and n-C:P/p-Si cells by a pulsed laser deposition (PLD) technique using a graphite target at room temperature. The boron and phosphorus atoms incorporated in the films were determined by X-ray photoelectron spectroscopy (XPS) to be in the range of 0.2–1.75 and 0.22–1.77 atomic percentages, respectively. The cells performances have been given in the dark I–V rectifying curve a
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RUSOP, M., T. SOGA, T. JIMBO, and M. UMENO. "CONTRIBUTION OF n-TYPE AMORPHOUS CARBON ON THE FABRICATION OF n-C:P/p-Si SOLAR CELLS." Surface Review and Letters 11, no. 06 (2004): 569–75. http://dx.doi.org/10.1142/s0218625x04006578.

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The phosphorus doped n -type ( n - C : P ) carbon films and fabrication of n - C : P / p - Si heterojunction solid-state solar cells by pulsed laser deposition (PLD) technique at room temperature using graphite target have been studied. The P atoms incorporated in the films were determined by X-ray photoelectron spectroscopy (XPS) to be in the range of 0.22–1.77 atomic percentages. The cells performances have been given in the dark I–V rectifying curve and I–V working curve under illumination when exposed to AM 1.5 illumination condition (100 mW/cm2, 25°C). The open circuit voltage ( V oc ) an
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