Influence of Phase Separation on Electrical Properties of ALD Hf–Silicate Films with Various Si Concentrations

2008 ◽  
Vol 11 (5) ◽  
pp. H121 ◽  
Author(s):  
Tae Joo Park ◽  
Jeong Hwan Kim ◽  
Jae Hyuck Jang ◽  
Kwang Duk Na ◽  
Cheol Seong Hwang ◽  
...  
Keyword(s):  
Phase Separation ◽  
Electrical Properties

Morphology and electrical properties of multi-walled carbon nanotube/carbon aerogel prepared by using polyacrylonitrile as precursor

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 49944-49952 ◽  
Author(s):  
A. Dourani ◽  
M. Hamadanian ◽  
M. Haghgoo ◽  
M. R. Jahannama ◽  
H. Goudarzi
Keyword(s):  
Phase Separation ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
Carbon Aerogel ◽  
Multi Walled Carbon Nanotube

MWCNT/PAN aerogel composites were synthesized using the Thermal Induced Phase Separation (TIPS) procedure.

scholarly journals Phase Separation and Electrical Properties of Manganese Borosilicate Glasses

2014 ◽  
Vol 98 ◽  
pp. 71-77 ◽  
Author(s):  
Piotr Kupracz ◽  
Natalia Anna Szreder ◽  
Maria Gazda ◽  
Jakub Karczewski ◽  
Ryszard Jan Barczyński
Keyword(s):  
Phase Separation ◽  
Electrical Properties ◽  
Borosilicate Glasses

scholarly journals Diameter-controlled Cu nanoparticles on saponite and preparation of film by using spontaneous phase separation

RSC Advances ◽  
2017 ◽  
Vol 7 (66) ◽  
pp. 41896-41902 ◽  
Author(s):  
Masaya Miyagawa ◽  
Akane Shibusawa ◽  
Kaho Maeda ◽  
Akiyoshi Tashiro ◽  
Toshiki Sugai ◽  
...  
Keyword(s):  
Phase Separation ◽  
Electrical Properties ◽  
Cu Nanoparticles ◽  
Spontaneous Phase

Cu nanoparticles have attracted much attention due to their optical, catalytic, and electrical properties.

scholarly journals Incorporation of Carbon Nanofillers Tunes Mechanical and Electrical Percolation in PHBV:PLA Blends

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1371 ◽  
Author(s):  
Jesse Arroyo ◽  
Cecily Ryan
Keyword(s):  
Phase Separation ◽  
Electrical Properties ◽  
Percolation Threshold ◽  
Mechanical Analysis ◽  
Poly Lactic Acid ◽  
Peak Reduction ◽  
Scanning Calorimetry ◽  
Electrical Percolation ◽  
Mechanical And Electrical Properties ◽  
Electrical Conductivities

Biobased fillers, such as bio-derived cellulose, lignin byproducts, and biochar, can be used to modify the thermal, mechanical, and electrical properties of polymer composites. Biochar (BioC), in particular, is of interest for enhancing thermal and electrical conductivities in composites, and can potentially serve as a bio-derived graphitic carbon alternative for certain composite applications. In this work, we investigate a blended biopolymer system: poly(lactic acid) (PLA)/poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV), and addition of carbon black (CB), a commonly used functional filler as a comparison for Kraft lignin-derived BioC. We present calculations and experimental results for phase-separation and nanofiller phase affinity in this system, indicating that the CB localizes in the PHBV phase of the immiscible PHBV:PLA blends. The addition of BioC led to a deleterious reaction with the biopolymers, as indicated by blend morphology, differential scanning calorimetry showing significant melting peak reduction for the PLA phase, and a reduction in melt viscosity. For the CB nanofilled composites, electrical conductivity and dynamic mechanical analysis supported the ability to use phase separation in these blends to tune the percolation of mechanical and electrical properties, with a minimum percolation threshold found for the 80:20 blends of 1.6 wt.% CB. At 2% BioC (approximately the percolation threshold for CB), the 80:20 BioC nanocomposites had a resistance of 3.43 × 10 8 Ω as compared to 2.99 × 10 8 Ω for the CB, indicating that BioC could potentially perform comparably to CB as a conductive nanofiller if the processing challenges can be overcome for higher BioC loadings.

Defect Structure, Phase Separation, and Electrical Properties of Nonstoichiometric Tetragonal Tungsten Bronze Ba0.5–xTaO3–x

2013 ◽  
Vol 52 (22) ◽  
pp. 13244-13252 ◽  
Author(s):  
Xiaojun Kuang ◽  
Fengjuan Pan ◽  
Jiang Cao ◽  
Chaolun Liang ◽  
Matthew R. Suchomel ◽  
...  
Keyword(s):  
Phase Separation ◽  
Electrical Properties ◽  
Defect Structure ◽  
Tungsten Bronze ◽  
Tetragonal Tungsten Bronze ◽  
Structure Phase

Thermodynamically self-organized hole transport layers for high-efficiency inverted-planar perovskite solar cells

Nanoscale ◽  
2017 ◽  
Vol 9 (34) ◽  
pp. 12677-12683 ◽  
Author(s):  
Wanjung Kim ◽  
Soyeon Kim ◽  
Sung Uk Chai ◽  
Myung Sun Jung ◽  
Jae Keun Nam ◽  
...  
Keyword(s):  
Phase Separation ◽  
Electrical Properties ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Self Organized ◽  
Hole Transport Layers ◽  
Thermodynamic Phase

Thermodynamic phase separation of hole transport layer can be demonstrated by tuning the PSS/PEDOT ratio without any post-treatment, which affects the optical, electronic and electrical properties of PEDOT:PSS layer.

Ordered Oxygen Arrangements in Y1Ba2Cu3O7−x

1989 ◽  
Vol 156 ◽  
Author(s):  
R. Beyers ◽  
B.T. Ahn ◽  
G. Gorman ◽  
V.Y. Lee ◽  
S.S.P. Parkin ◽  
...  
Keyword(s):  
Phase Separation ◽  
Solid State ◽  
Electrical Properties ◽  
Wave Vector ◽  
Solid State Ionic ◽  
Ordered Structures ◽  
State Ionic

ABSTRACTWe describe the ordered oxygen arrangements in Y1Ba2Cu3O7−x samples prepared in precisely controlled oxygen environments using a solid-state ionic tehnique. The so-called “Ortho II”phase, characterized by a 〈1/200〉 superlattice wave vector, exists at oxygen contents from 6.28 to 6.65, with electrical properties that range from insulating to superconducting at up to 60 K. Additional ordered structures occur at oxygen contents from 6.65 to 6.90. All of the ordered structures are consistent with the removal of entire chains of oxygen along the b axis, which minimizes the number of three-fold coordinated copper and creates Cu+1 ions even in oxygen-rich samples. We found no evidence for phase separation between 6.0 and 7.0 or between 6.5 and 7.0. Phase separation, if it occurs at all, occurs on the 60 K and 90 K plateaus.

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