Organic-inorganic nano-composite films for photonic applications made by multi-beam multi-target pulsed laser deposition with remote control of the plume directions

Darwish, Abdalla M.; Moore, Shaelynn; Mohammed, Aziz; Alexander, Deonte'; Bastian, Tyler; Dorlus, Wydglif; Sarkisov, Sergey S.; Patel, Darayas; Mele, Paolo; Koplitz, Brent

doi:10.1117/12.2237538

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…17,18 SCLs were deposited on solar cells using the open-air multi-beam multi-target pulsed laser deposition (MBMT-PLD) method invented by D. Darwish. [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] The advantages of the method are low consumption of the material, potentially high accuracy of the thickness of the deposited layer (unfortunately not implemented in this work), and precise control of the concentration of the constituents along and across the deposited layer. We used two variants of the method.…”

Section: Methodsmentioning

confidence: 99%

Ultraviolet spectrum downshifting in polymer nanocomposite films for the enhancement of optoelectronic devices

Darwish,

Sarkisov,

Patel

et al. 2023

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVII

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We report on polymer nanocomposite films with ultraviolet (UV) spectrum down-shifting that can be transferred using the open-air multi-beam multi-target pulsed laser deposition (MBMT-PLD) on opto-electronic devices, such as photovoltaic (PV) cells, for the enhancement of their performance. The nanocomposites were made of the space-grade polymer CORIN impregnated with nanoparticles (NPs) of rare-earth (RE) doped compound NaYF 4 : Eu 3+ . NPs had a peak of down-shifted photoluminescence (PL) at 623 nm and a PL quantum yield (PLQE) of ~ 50%. The enhancement of the coated PV cells was two-fold: (a) protection from harmful solar UV radiation and (b) the increase of the PV conversion efficiency. We describe the results of characterization of the NPs using dynamic light scattering, X-ray diffraction, and optical spectroscopy. The nanocomposite films were deposited on Silicon heterojunction (SHJ), Copper-Indium-Gallium-Selenide (CIGS) and inverted metamorphic multijunction (IMM) solar cells. The cells were exposed to 365-nm UV radiation from a light emitting diode (LED). The I-V characteristics of the cells were measured with a solar simulator using AM0 filter. The proposed films improved UV stability of all three cell types: the power degradation significantly slowed down, CIGSs (by half). The proposed films have great commercial potential, especially for the applications to space power.

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Section: Methodsmentioning

confidence: 99%

Ultraviolet spectrum downshifting in polymer nanocomposite films for the enhancement of optoelectronic devices

Darwish,

Sarkisov,

Patel

et al. 2023

Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVII

View full text Add to dashboard Cite

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“…scattering of the ejected target matter on its way toward the substrate due to collisions with air molecules. The authors, using their experience with CMBMT-PLD [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47], close the gap of knowledge on the properties of polymer nanocomposite films deposited in open air and show that, despite limitations, they can potentially function as solar spectrum downconverters.…”

Section: Introductionmentioning

confidence: 99%

Polymer nanocomposite sunlight spectrum down-converters made by open-air PLD

Darwish

Sarkisov

Wilson

et al. 2020

Nanotechnology Reviews

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We report, for the first time to our knowledge, on the polymer nanocomposite sunlight spectrum down-converters made by the concurrent multi-beam multi-target pulsed laser deposition (CMBMT-PLD) of phosphor and polymer in ambient air. Phosphor PLD targets were made of down-converting rare-earth (RE)-doped fluorides NaYF4:Yb3+,Er3+, and NaYF4:Yb3+,Tm3+ with a Stokes shift of 620 nm (from 360 to 980 nm), minimizing the effect of re-absorption. The phosphors were synthesized by the wet method. Polymer target was made of poly (methyl methacrylate) known as PMMA. Target ablation was conducted with 1,064 nm beams from an Nd:YAG Q-switched laser. Beam intensity was 2.8 × 1016 W/cm2 for both targets. The substrate was a microscope glass slide. Phosphor nanoparticles with a size ranging from 10 to 50 nm were evenly distributed in the polymer matrix during deposition. The nanoparticles retained the crystalline structure and the fluorescent properties of the phosphor target. There was no noticeable chemical decomposition of the deposited polymer. The products of laser-induced reaction of the polymer target with atmospheric gases did not reach the substrate during PLD. Post-heating of the substrate at ∼90°C led to fusion of separate polymer droplets into uniform coating. Quantum yield of the down-conversion polymer nanocomposite film was estimated to be not less than ∼5%. The proposed deposition method can find its application in making commercial-size down-converter coatings for photo-voltaic solar power applications.

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Nanocolloid simulators of luminescent solar concentrator photovoltaic windows

Darwish

Sarkisov

Patel

et al. 2022

Nanotechnology Reviews

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Transparent luminescent solar concentrator (LSC) windows with edge-attached photovoltaic (PV) cells have the potential for improving building efficiency without compromising aesthetics and comfort. Optimization of such windows requires an inexpensive simulator for experimenting with various designs. We report, for the first time to the best of our knowledge, the simulator of a transparent LSC window in the form of a plastic container filled with a colloid of photoluminescent nanoparticles (NPs) in an organic solvent (1-propanol). The exemplary NPs were produced by ball milling of the powder of rare earth (RE)-doped phosphor NaYF4:Yb3+,Er3+ synthesized by the wet method. The NPs converted the ultraviolet (UV) solar spectrum into visible/near infrared (NIR) via spectral down-shifting and down-conversion (quantum cutting). With a photoluminescence quantum yield (PLQY) of the phosphor <0.4%, the LSC at a nanocolloid concentration of ∼0.1 g solids per 100 mL liquids demonstrated a power conversion efficiency of 0.34% and a power concentration ratio of ∼0.022 comparable to the LSCs with RE-doped NPs with 200 times greater PLQY. At the same time, the 3 cm thick LSC window simulator had ∼90% transmittance to the sunlight. The content and concentration of the nanocolloid could be easily modified to optimize the LSC window performance without a costly window making process.

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Organic-inorganic nano-composite films for photonic applications made by multi-beam multi-target pulsed laser deposition with remote control of the plume directions

Cited by 4 publications

References 13 publications

Ultraviolet spectrum downshifting in polymer nanocomposite films for the enhancement of optoelectronic devices

Ultraviolet spectrum downshifting in polymer nanocomposite films for the enhancement of optoelectronic devices

Polymer nanocomposite sunlight spectrum down-converters made by open-air PLD

Nanocolloid simulators of luminescent solar concentrator photovoltaic windows

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