Self-ordering of small-diameter metal nanoparticles by dewetting on hexagonal mesh templates

Nanoscale ◽  
2014 ◽  
Vol 6 (17) ◽  
pp. 10106-10112 ◽  
Author(s):  
Eric R. Meshot ◽  
Zhouzhou Zhao ◽  
Wei Lu ◽  
A. John Hart
Keyword(s):  
Thin Films ◽  
Metal Nanoparticles ◽  
Small Diameter ◽  
Ordered Arrays ◽  
20 Nm

Self-ordered arrays of metal nanoparticles smaller than 20 nm are formed by dewetting thin films on hexagonal mesh substrates.

Macromolecular structures of biological specimens are not obscured by controlled osmium impregnation

1983 ◽  
Vol 41 ◽  
pp. 606-607
Author(s):  
Klaus-Ruediger Peters ◽  
Samuel A. Green
Keyword(s):  
Thin Films ◽  
Electrical Conductivity ◽  
Critical Point ◽  
Metal Films ◽  
High Magnification ◽  
Osmium Impregnation ◽  
Instrumental Resolution ◽  
20 Nm ◽  
Continuous Metal

High magnification imaging of macromolecules on metal coated biological specimens is limited only by wet preparation procedures since recently obtained instrumental resolution allows visualization of topographic structures as smal l as 1-2 nm. Details of such dimensions may be visualized if continuous metal films with a thickness of 2 nm or less are applied. Such thin films give sufficient contrast in TEM as well as in SEM (SE-I image mode). The requisite increase in electrical conductivity for SEM of biological specimens is achieved through the use of ligand mediated wet osmiuum impregnation of the specimen before critical point (CP) drying. A commonly used ligand is thiocarbohvdrazide (TCH), first introduced to TEM for en block staining of lipids and glvcomacromolecules with osmium black. Now TCH is also used for SEM. However, after ligand mediated osinification nonspecific osmium black precipitates were often found obscuring surface details with large diffuse aggregates or with dense particular deposits, 2-20 nm in size. Thus, only low magnification work was considered possible after TCH appl ication.

scholarly journals High performance, electroforming-free, thin film memristors using ionic Na0.5Bi0.5TiO3

2021 ◽  
Vol 9 (13) ◽  
pp. 4522-4531
Author(s):  
Chao Yun ◽  
Matthew Webb ◽  
Weiwei Li ◽  
Rui Wu ◽  
Ming Xiao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Resistive Switching ◽  
Growth Temperature ◽  
High Performance ◽  
20 Nm

Interfacial resistive switching and composition-tunable RLRS are realized in ionically conducting Na0.5Bi0.5TiO3 thin films, allowing optimised ON/OFF ratio (>104) to be achieved with low growth temperature (600 °C) and low thickness (<20 nm).

When Pt meets BaTiO3: Interaction between metal nanoparticles and oxide thin films

2011 ◽  
Vol 65 (8) ◽  
pp. 1207-1210 ◽  
Author(s):  
Yaodong Yang ◽  
Jianjun Yao ◽  
Jie-Fang Li ◽  
D. Viehland
Keyword(s):  
Thin Films ◽  
Metal Nanoparticles ◽  
Oxide Thin Films

Thin films by regular patterns of metal nanoparticles: Tailoring the optical properties by nanodesign

1996 ◽  
Vol 63 (4) ◽  
pp. 381-384 ◽  
Author(s):  
W. Gotschy ◽  
K. Vonmetz ◽  
A. Leitner ◽  
F. R. Aussenegg
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Metal Nanoparticles ◽  
Regular Patterns

Fabrication of porous thin films of block copolymer at the liquid/liquid interface and construction of composite films doped with noble metal nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (85) ◽  
pp. 69339-69347 ◽  
Author(s):  
Qian Wang ◽  
Xingjuan Zhao ◽  
Xiao-Kai Zhang ◽  
Yong-Ill Lee ◽  
Hong-Guo Liu
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Metal Nanoparticles ◽  
Polymer Film ◽  
Noble Metal ◽  
Composite Films ◽  
Liquid Interface ◽  
Porous Polymer ◽  
Noble Metal Nanoparticles ◽  
Porous Thin Films

A porous polymer film was fabricated at a liquid/liquid interface that can be used as a matrix to form various composite films.

Hexagonally ordered arrays of metallic nanodots from thin films of functional block copolymers

Polymer ◽  
2010 ◽  
Vol 51 (12) ◽  
pp. 2661-2667 ◽  
Author(s):  
E. Bhoje Gowd ◽  
Bhanu Nandan ◽  
Nadja C. Bigall ◽  
Alexander Eychmüller ◽  
Petr Formanek ◽  
...  
Keyword(s):  
Thin Films ◽  
Block Copolymers ◽  
Ordered Arrays ◽  
Functional Block ◽  
Hexagonally Ordered ◽  
Functional Block Copolymers

Tunable Metallization by Assembly of Metal Nanoparticles in Polymer Thin Films by Photo- or Electron Beam Lithography

Langmuir ◽  
2005 ◽  
Vol 21 (20) ◽  
pp. 9352-9358 ◽  
Author(s):  
Dehui Yin ◽  
Shin Horiuchi ◽  
Masamichi Morita ◽  
Atsushi Takahara
Keyword(s):  
Thin Films ◽  
Electron Beam ◽  
Metal Nanoparticles ◽  
Electron Beam Lithography ◽  
Polymer Thin Films

Effect of the Hf content on the microstructure and ferroelectric properties of HfxZr1−xO2 thin films using an all-inorganic aqueous precursor solution

Nanoscale ◽  
2021 ◽  
Vol 13 (38) ◽  
pp. 16216-16225
Author(s):  
Jingjing Wang ◽  
Dayu Zhou ◽  
Wei Dong ◽  
Ziqi Li ◽  
Nana Sun ◽  
...  
Keyword(s):  
Thin Films ◽  
Inorganic Salt ◽  
Ferroelectric Properties ◽  
Precursor Solution ◽  
Ferroelectric Thin Films ◽  
20 Nm

20 nm thick Hf-doped ZrO2-based ferroelectric thin films were prepared using all-inorganic salt precursors through the CSD method.

AlSb THIN FILMS PREPARED BY DC MAGNETRON SPUTTERING AND ANNEALING

2008 ◽  
Vol 22 (14) ◽  
pp. 2275-2283 ◽  
Author(s):  
WEIDONG CHEN ◽  
LIANGHUAN FENG ◽  
ZHI LEI ◽  
JINGQUAN ZHANG ◽  
FEFE YAO ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
High Efficiency ◽  
Dark Conductivity ◽  
Aluminum Antimonide ◽  
Dc Magnetron Sputtering ◽  
Glass Substrates ◽  
Average Grain Size ◽  
P Type ◽  
20 Nm

Aluminum antimonide (AlSb) is thought to be a potential material for high efficiency solar cells. In this paper, AlSb thin films have been fabricated by DC magnetron sputtering on glass substrates. The sputtering target consists of aluminum and antimony, and the area ratio of Al to Sb is 7:3, which is derived from research into the relationship between the deposition rates of both the metals and sputtering power. XRD and AFM measurements show that the as-deposited films are amorphous, but become polycrystalline with an average grain size of about 20 nm after annealing in an argon atmosphere. From optical absorption measurements of annealed AlSb films, a band gap of 1.56 eV has been demonstrated. Hall measurements show that the films are p-type semiconductors. The temperature dependence of dark conductivity tested in vacuum displays a linear lnσ to 1/T curve, which indicates a conductivity activation energy of around 0.61 eV.

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