scholarly journals Combinatorial Exploration and Mapping of Phase Transformation in a Ni–Ti–Co Thin Film Library

2020 ◽  
Vol 22 (11) ◽  
pp. 641-648
Author(s):  
Naila M. Al Hasan ◽  
Huilong Hou ◽  
Tieren Gao ◽  
Jonathan Counsell ◽  
Suchismita Sarker ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
Film Library

scholarly journals Combinatorial Synthesis and High-Throughput Characterization of Microstructure and Phase Transformation in Ni–Ti–Cu–V Quaternary Thin-Film Library

Engineering ◽  
2020 ◽  
Vol 6 (6) ◽  
pp. 637-643
Author(s):  
Naila M. Al Hasan ◽  
Huilong Hou ◽  
Suchismita Sarkar ◽  
Sigurd Thienhaus ◽  
Apurva Mehta ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
High Throughput ◽  
Combinatorial Synthesis ◽  
Film Library

scholarly journals Influence of low Bi contents on phase transformation properties of VO2 studied in a VO2:Bi thin film library

RSC Advances ◽  
2021 ◽  
Vol 11 (13) ◽  
pp. 7231-7237
Author(s):  
Xiao Wang ◽  
Detlef Rogalla ◽  
Aleksander Kostka ◽  
Alfred Ludwig
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
Transformation Temperature ◽  
Phase Transformation Temperature ◽  
Film Library ◽  
Charge Doping

A VO2:Bi thin-film library was fabricated by reactive co-sputtering. The phase transformation temperature of VO2:Bi increases from 74.7 to 76.4 °C by 8 K/at% Bi in the range of 0.08–0.29 at% suggesting an effect of charge doping from Bi3+.

Annealing induced phase transformation from amorphous to polycrystalline SnSe2 thin film photo detector with enhanced light-matter interaction

2022 ◽  
Vol 578 ◽  
pp. 121353
Author(s):  
Shubham Umeshkumar Gupta ◽  
Ankit G. Dalvaniya ◽  
Chaitanya Limberkar ◽  
Kireetkumar D. Patel ◽  
Gunvant K. Solanki ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
Matter Interaction ◽  
Light Matter Interaction

Influences of Cr Content on the Phase Transformation Properties and Stress Change in V–Cr–O Thin-Film Libraries

2020 ◽  
Vol 2 (4) ◽  
pp. 1176-1183 ◽  
Author(s):  
Xiao Wang ◽  
Ellen Suhr ◽  
Lars Banko ◽  
Steffen Salomon ◽  
Alfred Ludwig
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
Stress Change ◽  
Cr Content

Evidence of pentacene bulk and thin film phase transformation into an orthorhombic phase by iodine diffusion

2010 ◽  
Vol 484 (4-6) ◽  
pp. 299-303 ◽  
Author(s):  
R. Srnanek ◽  
J. Jakabovic ◽  
E. Dobrocka ◽  
G. Irmer ◽  
U. Heinemeyer ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
Orthorhombic Phase ◽  
Iodine Diffusion

Synthesis and Dispersion of Ni-Doped Cu2ZnSnS4

2020 ◽  
Vol 860 ◽  
pp. 42-50
Author(s):  
Camellia Panatarani ◽  
Hera Redianti ◽  
Ferry Faizal ◽  
Eka Cahya Prima ◽  
Brian Yuliarto ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
Zeta Potential ◽  
Elemental Analysis ◽  
High Energy ◽  
Future Application ◽  
Dispersing Agent ◽  
Higher Temperature ◽  
Average Size ◽  
Dispersing Agents

This paper reports the preliminary study on the synthesis of Ni doped CZTS (Cu2ZnSnS4:Ni) particle 5 at.% of Cu by solution method and dispersion of the obtained particles by beads mill method at various dispersing agents (SDS, CTAB, and Tween80). The phase transformation of the obtained particles was analyzed from the XRD spectra and XRF elemental analysis. The phase transformation and amount of Ni-doped to particles was predicted employing commercially available analytical software tool Match! Version 2.x. Moreover, the dispersion characteristics were investigated includes size, size distribution, and zeta potential of bare particles in comparison to various dispersing agents. This characteristic related to the future application of CZTS as an absorber in a thin-film based PV. The XRD analysis showed that the obtained particle contained crystal structure of copper sulfate pentahydrate (75.9 %), Ni(HN2S2)2 (12.5 %), and Cu2ZnSnS4 (11.6%). The XRF elemental analysis showed that amount of Ni-doped was 6.8 at.%; it was higher than the initial design amount of Ni doping. The dispersion of suspended particles was the majority (90%) with an average size of 3.06 µm and only 10 % with size 255 nm. Beads-milling of particles without dispersing agents did not disintegrate agglomerated particles. It is highlighted dispersion only using magnetic stirred with SDS dispersing agent provides the best suspension with a majority (60%) in 166 nm and only 30 % with average size 3.06 µm with relatively high zeta potential (-17 mV). It was concluded that the presence of a multi-phase crystal needs to be resolved either by proper calcination at a higher temperature than 400°C or further heating at a higher temperature during film preparation. High-energy centrifugation of zirconia beads mill caused desorption of adsorbed steric stabilization of dispersing agent under investigation. Further investigation on the coating process to facilitated laboratory fabrication of thin-film absorber with SDS as a dispersing agent is necessary to carry out concerning the properties of the thin-film.

scholarly journals Combinatorial Search for New Solar Water Splitting Photoanode Materials in the Thin-Film System Fe–Ti–W–O

2020 ◽  
Vol 234 (5) ◽  
pp. 867-885 ◽  
Author(s):  
Swati Kumari ◽  
Chinmay Khare ◽  
Fanxing Xi ◽  
Mona Nowak ◽  
Kirill Sliozberg ◽  
...  
Keyword(s):  
Thin Film ◽  
Water Splitting ◽  
Spin Coating ◽  
Photocurrent Density ◽  
Coated Sample ◽  
X Ray Diffraction ◽  
Film Library ◽  
X Ray ◽  
Solar Water ◽  
Solar Water Splitting

AbstractIn order to identify new solar water splitting photoanodes, Fe–Ti–W–O materials libraries were fabricated by combinatorial reactive co-sputtering and investigated by high-throughput characterization methods to elucidate compositional, thickness, and structural properties. In addition, photoelectrochemical measurements such as potentiodynamic photocurrent determination and open circuit potential measurements were performed using an automated scanning droplet cell. In the thin-film library, a quaternary photoactive region Fe30–49Ti29–55W13–22Ox was identified as a hit composition region, comprising binary and ternary phases. The identified region shows a distinct surface morphology with larger grains (∼200 nm) being embedded into a matrix of smaller grains (∼80–100 nm). A maximum photocurrent density of 117 μA/cm2 at a bias potential of 1.45 V vs. RHE in NaClO4 as an electrolyte under standard solar simulating conditions was recorded. Additional samples with compositions from the hit region were fabricated by reactive co-sputtering and spin coating followed by annealing. Synchrotron X-ray diffraction of sputtered Fe32Ti52W16Ox thin-films, annealed in air (600 °C, 700 °C, 800 °C) revealed the presence of the phases FeTiO3 and Ti0.54W0.46O2. The composition Fe48Ti30W22Ox from the hit region was fabricated by spin coating and subsequent annealing for a detailed investigation of its structure and photoactivity. After annealing the spin-coated sample at 650 °C for 6 h, X-ray diffraction results showed a dominant pattern with narrow diffraction lines belonging to a distorted FeWO4 (ferberite) phase along with broad diffraction lines addressed as Fe2TiO5 and in a small fraction also, Fe1.7Ti0.23O3. In hematite, Fe can be substituted by Ti, therefore we suggest that in the newfound ferberite-type phase, Ti partially substitutes for Fe leading to a small lattice distortion and a doubling of the monoclinic unit cell. In addition, Na from the substrate stabilizes the new phase: its tentative chemical formula is NaxFe0.33Ti0.67W2O8. A maximum photocurrent density of around 0.43 mA/cm2 at 1.45 V vs. RHE in 1M NaOH (pH ∼ 13.6) as an electrolyte was measured. Different aspects of the dependence of annealing and precursor solution concentration on phase transformation and photoactivity are discussed.

Maximum electrocatalytic oxidation performance for formaldehyde in a combinatorial copper-palladium thin film library

2016 ◽  
Vol 525 ◽  
pp. 110-118 ◽  
Author(s):  
Isabella Pötzelberger ◽  
Cezarina Cela Mardare ◽  
Wolfgang Burgstaller ◽  
Achim Walter Hassel
Keyword(s):  
Thin Film ◽  
Electrocatalytic Oxidation ◽  
Film Library ◽  
Oxidation Performance
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