Structural and Dynamical Properties of Polystyrene Thin Films Supported by Multiple Graphene Layers

2015 ◽  
Vol 48 (8) ◽  
pp. 2761-2772 ◽  
Author(s):  
Anastassia N. Rissanou ◽  
Vagelis Harmandaris
Keyword(s):  
Thin Films ◽  
Graphene Layers ◽  
Dynamical Properties

Growth of graphene layers for thin films

2011 ◽  
pp. 211-227
Author(s):  
B.H. Hong ◽  
H.R. Jeon
Keyword(s):  
Thin Films ◽  
Graphene Layers

scholarly journals Characterisation of thin films of graphene–surfactant composites produced through a novel semi-automated method

2016 ◽  
Vol 7 ◽  
pp. 209-219 ◽  
Author(s):  
Nik J Walch ◽  
Alexei Nabok ◽  
Frank Davis ◽  
Séamus P J Higson
Keyword(s):  
Thin Films ◽  
Total Internal Reflection ◽  
Sodium Dodecyl ◽  
Layer By Layer ◽  
Graphene Layers ◽  
Langmuir Blodgett ◽  
Stable Suspension ◽  
Automated Method ◽  
Graphene Flakes ◽  
Deposition Techniques

In this paper we detail a novel semi-automated method for the production of graphene by sonochemical exfoliation of graphite in the presence of ionic surfactants, e.g., sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB). The formation of individual graphene flakes was confirmed by Raman spectroscopy, while the interaction of graphene with surfactants was proven by NMR spectroscopy. The resulting graphene–surfactant composite material formed a stable suspension in water and some organic solvents, such as chloroform. Graphene thin films were then produced using Langmuir–Blodgett (LB) or electrostatic layer-by-layer (LbL) deposition techniques. The composition and morphology of the films produced was studied with SEM/EDX and AFM. The best results in terms of adhesion and surface coverage were achieved using LbL deposition of graphene(−)SDS alternated with polyethyleneimine (PEI). The optical study of graphene thin films deposited on different substrates was carried out using UV–vis absorption spectroscopy and spectroscopic ellipsometry. A particular focus was on studying graphene layers deposited on gold-coated glass using a method of total internal reflection ellipsometry (TIRE) which revealed the enhancement of the surface plasmon resonance in thin gold films by depositing graphene layers.

Microstructural defects in GaN thin films grown on chemically vapor-deposited graphene layers

2013 ◽  
Vol 102 (5) ◽  
pp. 051908 ◽  
Author(s):  
Hyobin Yoo ◽  
Kunook Chung ◽  
Suk In Park ◽  
Miyoung Kim ◽  
Gyu-Chul Yi
Keyword(s):  
Thin Films ◽  
Graphene Layers ◽  
Microstructural Defects ◽  
Chemically Vapor Deposited

scholarly journals Correction: Microstructures of GaN Thin Films Grown on Graphene Layers

2012 ◽  
Vol 24 (14) ◽  
pp. 1780-1780 ◽  
Author(s):  
Hyobin Yoo ◽  
Kunook Chung ◽  
Yong Seok Choi ◽  
Chan Soon Kang ◽  
Kyu Hwan Oh ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Layers

DYNAMICAL PROPERTIES OF THE INTERFACE BETWEEN TWO THIN FILMS

2005 ◽  
Vol 12 (01) ◽  
pp. 85-96 ◽  
Author(s):  
H. BOUMRAR ◽  
O. RAFIL ◽  
M. TAMINE ◽  
R. TIGRINE
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Theoretical Calculations ◽  
Dynamical Evolution ◽  
Longitudinal Direction ◽  
Resonance Structure ◽  
Translational Symmetry ◽  
Phonon Modes ◽  
Matching Procedure ◽  
Dynamical Properties

The effect on the vibrational properties of nanostructures at the interface between two thin films is presented. The model used consists of the coupling of two semi-infinite plans A and B having three and two atomic layers, respectively. Theoretical calculations of localized phonon modes and vibrational field were carried out using the matching procedure. Close to the interface, the transversal translational symmetry is broken down inducing Raleigh-like branches. The polarization degeneracy of the ordered surface Raleigh mode in the longitudinal direction is lifted. The presence of acoustic and optical-like phonons is discussed in terms of the elastic constant forces. The density of states and the spectral densities are presented for sample atomic sites. A hyperfine resonance structure is obtained. It allows the analysis of the dynamical evolution from thin film A to thin film B.

Dielectric and lattice dynamical properties of SrTiO3 thin films

2000 ◽  
Vol 28 (1-4) ◽  
pp. 247-256 ◽  
Author(s):  
X. X. Xi ◽  
A. A. Sirenko ◽  
I. A. Akimov ◽  
A. M. Clark ◽  
J. H. Hao ◽  
...  
Keyword(s):  
Thin Films ◽  
Dynamical Properties

Dynamical properties of magneto‐optical effect in magnetic fluid thin films

1988 ◽  
Vol 64 (10) ◽  
pp. 5846-5848 ◽  
Author(s):  
S. Taketomi ◽  
S. Ogawa ◽  
H. Miyajima ◽  
S. Chikazumi ◽  
K. Nakao ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Fluid ◽  
Optical Effect ◽  
Magneto Optical Effect ◽  
Dynamical Properties

scholarly journals Growth and optical characteristics of high-quality ZnO thin films on graphene layers

APL Materials ◽  
2015 ◽  
Vol 3 (1) ◽  
pp. 016103 ◽  
Author(s):  
Suk In Park ◽  
Youngbin Tchoe ◽  
Hyeonjun Baek ◽  
Jaehyuk Heo ◽  
Jerome K. Hyun ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Characteristics ◽  
Zno Thin Films ◽  
High Quality ◽  
Graphene Layers
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