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Showing 1 to 9 of 9 for “"selenization"”.
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Synthesis and Reactivity of Electroactive Carbon Sulfide Ligands and Studies on Modifications of Nucleic Acids
Finally, a separate study into the selective selenization of nucleic acid oligonucleotides was pursued. By using the soluble Se-transfer agent (i-PrC5H4)2TiSe5 in a new method with solid-phase phosphoramidite oligonucleotide synthesis, a mono-, di-, tri-, and tridecanucleotide of DNA with one …
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Kesterite thin-film solar cell absorbers derived using inhomogeneous CZTS nanoparticles
… lamellae to study CZTSSe film formation during selenization. It is found that the compositionally inhomogeneous nanoparticles supply the metal cations – namely Cu, Zn, and Sn – to the CZTSSe nuclei that grow at the top surface of the nanoparticle layer. These CZTSSe grains form a continuous …
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Preparation And Characterization Of Cigss Solar Cells And Pv Module Data Analysis
… motor control for better uniformity. Further, selenization/ sulfurization of these precursors was carried out using rapid thermal processing (RTP). CIGS films were sulfurized using chemical bath deposition (CBD). ZnO:Al was deposited on the CIGSS films using RF sputtering. A separate LABVIEW …
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Processing and Physical Functionality of Multicomponent High Entropy Materials
… sputtering of HEA films and followed by selenization with CVD, which exhibits excellent electrical and optical properties. In Chapter 6, we demonstrate a low-cost, facile, and effective method to synthesize three- to eight-element single-phase spinel magnetic HEO nanoparticles by …
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Preparation Of Efficient Cuin1-xgaxse2-ysy/cds Thin-film Solar Cells By Optimizing The Molybdenum Back Contact And Using Diethylselenide as Selenium Precursor
… in terms of NaF layer thickness required for selenization. The absorber surface was coated with a 50 to 60 nm thick layer of CdS as hetero-junction partner by chemical bath deposition. A window bi-layer of i:ZnO/ZnO:Al was deposited by RF magnetron sputtering. The thickness of i:ZnO was …
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Characterization Of Microstructural And Chemical Features In Cu-in-ga-se-s-based Thin-film Solar Cells
… Cu-Ga deposits, residual Se from the selenization/ sulfurization chamber in CIGS2 and the formation of Cu-rich regions which are attributed to decomposition effects in the Ga beam of the FIB. Wavy absorber surfaces were observed for some of the cells with occasional discontinuities in …
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Nanocrystal Synthesis and Thin Film Formation for Earth Abundant Photovoltaics
Providing access to on-demand energy at the global scale is a grand challenge of our time. The fabrication of solar cells from nanocrystal inks comprising earth abundant elements represents a scalable and sustainable photovoltaic technology with the potential to meet the global demand for …
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Structural Characterization of Photovoltaic Nanocrystals, Single Crystals, and Thin Film Semiconductors.
… voids in the film. Finally, we discover that the selenization copper-rich under higher pressure allows results in films with fewer voids and Na-passivated defects. Overall, we see that processing conditions impact the vertical composition and can change the performance of photovoltaic materials. …
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Solution-Processed Thin Film Deposition and Characterization of Multinary Chalcogenides: Towards Highly Efficient Cu2BaSn(S,Se)4 Solar Devices
… followed by spin coating, sulfurization and selenization steps at high temperatures. The ball milling approach, on the other hand, involves dispersion of ball-milled Cu2S, BaS, Sn, and S particles in low-toxicity ethanol, followed by sulfur and selenium treatments at high temperatures. After …