Characterization of New Materials for Photovoltaic Thin Films: Aggregation Phenomena in Self-Assembled Perylene-Based Diimides

2005 ◽  
Author(s):  
Daniel A. Higgins ◽  
Aifang Xie ◽  
Bei Liu
Keyword(s):  
Thin Films ◽  
New Materials ◽  
Self Assembled ◽  
Aggregation Phenomena

Self-assembled Monolayers Preparation and Characterization of BiFeO3 Thin Films

2009 ◽  
Vol 25 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Guo-Qiang TAN ◽  
Hai-Yang BO ◽  
Hong-Yan MIAO ◽  
Ao XIA ◽  
Zhong-Liang HE
Keyword(s):  
Thin Films ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Synthesis and Characterization of a Bioconjugate Based on Oleic Acid and L-Cysteine

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1791
Author(s):  
Marco Vizcarra-Pacheco ◽  
María Ley-Flores ◽  
Ana Mizrahim Matrecitos-Burruel ◽  
Ricardo López-Esparza ◽  
Daniel Fernández-Quiroz ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Materials Science ◽  
Critical Micellar Concentration ◽  
Synthesis And Characterization ◽  
New Materials ◽  
Visible Spectroscopy ◽  
Amide Bonds ◽  
Transmission Electron ◽  
Self Assembled

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.

The Growth and Characterization of Germanium-Carbon Alloy Thin Films

1992 ◽  
Vol 270 ◽  
Author(s):  
Haojie Yuan ◽  
R. Stanley Williams
Keyword(s):  
Thin Films ◽  
Photoelectron Spectroscopy ◽  
Vacuum Chamber ◽  
Optical Band Gap ◽  
High Vacuum ◽  
Optical Absorption Spectroscopy ◽  
Alloy Thin Film ◽  
New Materials ◽  
X Ray

ABSTRACTThin films of pure germanium-carbon alloys (GexC1−x with x ≈ 0.0, 0.2, 0.4, 0.5, 0.6, 0.8, 1.0) have been grown on Si(100) and A12O3 (0001) substrates by pulsed laser ablation in a high vacuum chamber. The films were analyzed by x-ray θ-2θ diffraction (XRD), x-ray photoelectron spectroscopy (XPS), Auger electron spectroscopy (AES), conductivity measurements and optical absorption spectroscopy. The analyses of these new materials showed that films of all compositions were amorphous, free of contamination and uniform in composition. By changing the film composition, the optical band gap of these semiconducting films was varied from 0.00eV to 0.85eV for x = 0.0 to 1.0 respectively. According to the AES results, the carbon atoms in the Ge-C alloy thin film samples has a bonding configuration that is a mixture of sp2 and sp3 hybridizations.

Synthesis and characterization of self-assembled c-axis oriented Bi2Sr3Co2Oy thin films by the sol–gel method

2011 ◽  
Vol 40 (37) ◽  
pp. 9544 ◽  
Author(s):  
Xuebin Zhu ◽  
Xianwu Tang ◽  
Dongqi Shi ◽  
Hongbin Jian ◽  
Hechang Lei ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Synthesis And Characterization ◽  
Gel Method ◽  
Sol Gel Method ◽  
Self Assembled

scholarly journals Ultra-thin films for plasmonics: a technology overview

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Radu Malureanu ◽  
Andrei Lavrinenko
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Support Surface ◽  
New Materials ◽  
Infra Red ◽  
Plasmon Polaritons ◽  
Plasmon Propagation ◽  
Made In

AbstractUltra-thin films with low surface roughness that support surface plasmon-polaritons in the infra-red and visible ranges are needed in order to improve the performance of devices based on the manipulation of plasmon propagation. Increasing amount of efforts is made in order not only to improve the quality of the deposited layers but also to diminish their thickness and to find new materials that could be used in this field. In this review, we consider various thin films used in the field of plasmonics and metamaterials in the visible and IR range. We focus our presentation on technological issues of their deposition and reported characterization of film plasmonic performance.

scholarly journals Preparation and characterization of an ultrahydrophobic surface based on a stearic acid self-assembled monolayer over polyethyleneimine thin films

2003 ◽  
Vol 546 (2-3) ◽  
pp. 64-74 ◽  
Author(s):  
Sili Ren ◽  
Shengrong Yang ◽  
Yapu Zhao ◽  
Tongxi Yu ◽  
Xudong Xiao
Keyword(s):  
Thin Films ◽  
Stearic Acid ◽  
Self Assembled Monolayer ◽  
Self Assembled

Characterization of a Novel Water-Soluble 3,4,9,10-Perylenetetracarboxylic Diimide in Solution and in Self-Assembled Zirconium Phosphonate Thin Films

Langmuir ◽  
2006 ◽  
Vol 22 (4) ◽  
pp. 1680-1687 ◽  
Author(s):  
Rodrigo O. Marcon ◽  
Jean G. dos Santos ◽  
Karla M. Figueiredo ◽  
Sergio Brochsztain
Keyword(s):  
Thin Films ◽  
Water Soluble ◽  
Zirconium Phosphonate ◽  
Self Assembled
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