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2016 MRS Spring Meeting

This picture shows an optical micrograph of binary polymer brushes. The pattern is composed of hydrophilic and hydrophobic polymers - the former are swollen at increased humidity. The image shows silicone oil droplets that are bouncing indefinitely above a vibrating pool of silicone oil at 15 Hz. The surface waves generated by the droplets are analogous to quantum mechanical waves that guide the dynamics of quantum particles. In the morning, the green clovers wake up in the bright sunshine. This is from a high resolution SEM image of zinc oxide "nano-clovers" synthesized by chemical vapor deposition technique. Zinc oxide nanowalls electrodeposited on polished stainless steel electrode, imaged with SEM, color added in Adobe Photoshop. The beauties of nature has been reproduced by the orchestra of nucleation and growth. Iron oxide flowers of two micron in diameter have been grown in a hydrothermal reactor, followed by acetylene treatment enlivening the leaves. A STEM secondary electron image of Fe3O4 grown on a Tb-doped lanthanum phosphate microrod is depicted here as an octopus enveloping a submarine vessel.

2016 MRS Fall Meeting

A core-shell printed filament of gelatin in the outer shell and collagen in the core (credits: Katharina Kroll).   The human being is made of imperfection. An Australian dollar coated with an ultra-transparent superhydrophobic composite coating. Colored SEM image of the layered Ti2C MXene showing similarities to the face of Lord Voldemort, a character in Harry Potter movie series. SEM cross-section of a multi-layered perovskite solar cell assembled via spin-coating in which a dust particle resulted in the protrusion This photograph represents a snapshot of the dynamic response of a ferrofluid to an intricate magnetic field distribution over a silicon wafer. A 3D image of the inside of a charged Li-ion battery taken using MRI, showing regions of dendrites growing between two disc-shaped electrodes.

2015 MRS Spring Meeting

Zinc oxide nanoflower structure synthesized by pulsed laser deposition technique A SEM image of holey graphene film. The film is made by 900°C treated polystyrene/graphene xxide free-standing film. Yanwen Yuan, Nanyang Technological University Andy Warhol's Nano-Guitar by Peter Reiss The Perovskite Sunflower by Son Tung Ha The Microcave by Magnus Jonsson

2015 MRS Fall Meeting

Ferrofluids are colloidal liquids made of nanoscale ferromagnetic particles suspended in a carrier fluid. A red electrospun "heart" is trapped in the matrix of electrospun nanofibers of Poly[(R)-3-hydroxybutyrate-co-(R)-3-hydroxyhexanoate (PHBHx), a biodegradable and biocompatible "green" polyester fully synthesized by bacteria in plant oils. Sulfonated small molecular additives modify the surface topology of calcite. The variety of plateaus, craggy outcrops and mesas resembles a sunset scene from the Mojave. A scanning electron microscope image of novel straw-like architectures composed of highly uniform NiCo2O4 nanowires synthesized via a hydrothermal approach vividly demonstrates a party of numerous nano-scarecrows. A SEM image of a polyimide cross-section prepared by focused ion beam. SEM imaging of PEDOT:PSS Conductive Scaffold. SEM image of crosslinked polyethylene glycol hydrogel resembles magna river flow within cave. High symmetry dense packings of trees and lines in the two-dimensional hyperbolic plane can be projected to triply-periodic minimal surfaces. A SEM image of CuO nanostructures. Colorized SEM image of ultra-long vanadium pentoxide nano-belt bundles synthesized by a hydrogen peroxide method. SEM image of an Aluminum drop suspended in an array of multi-walled carbon nanotubes synthesized by chemical vapor deposition (CVD) technique. Optical microscopy image of uniaxially aligned domains of terthiophene under crossed polarizers. The alignment results from a thermal gradient annealing process. Polymer-grafted silica colloids dispersed in a solvent with a surfactant and drop cast onto a water interface forming colorful, micron-sized structures This is an SEM image [5.0kV] of nanostructured titania particles with various morphology.

2014 MRS Spring Meeting

Electrochemically overgrown CuNi nanopillars. This image is a scanning electron micrograph of ZnO nanorods epitaxially grown on a CuGaO2 nanoplate in aqueous solution. Atomic resolution TEM image of a porous Si nanowire surface morphology. Piezoresponse force microscopy image of the ferroelectric domain structure of hexagonal ErMnO_3. Dark and bright areas correspond to opposite out-of-plane directions of the polarization. Note the vortex-like meeting points of six domains False color SEM image of warring CaCO3 polymorphs showing the transformation of vaterite (left) to the more stable calcite (right) on the surface of a hierarchical mineral tube grown from a gel-liquid interface. FIB section of a silicon nanowires carpet.

2014 MRS Fall Meeting

SEM image of electrospun core-shell fibers containing self-healing agents deposited on steel A scanning electron microscope image of composite particles comprised of self-assembled silica nanoparticles and polybutadiene. Scanning Electron Microscopy image taken for assembly of iron oxide nanoparticles in the magnetic fields. 2 day in vitro hippocampal neurons drop-plated on superhydrophobic nanostructured silicon devices clustered before die looking for nutrients and oxygen. “A Rose by Any Other Name…” is an SEM image of complex ZnO meso-crystals synthesized through a solvothermal process. Contribution from Taha Rostamzadeh, Korosh Mahmoodi, and John B. Wiley SEM image of a micro-pillar designed for microcompression testing of nanocrystalline Ni-W alloy viewed from the top. The pillar was made with an automated lathe milling technique using a Focused Ion Beam microscope.

2013 MRS Spring Meeting

The "Hedgehog" particles with nano-scale corrugation are sculpted by interfacial growth of rigid ZnO nanowires on polymeric microspheres. Zinc-doped tin oxide nano-flowers grown by hydrothermal method. An SEM image of a thin-sheet network composed of doped aniline oligomers. The aggregated sheets in the upper right corner forms a cluster that mimics the look of a flower, whereas other flexible sheets represents leaves and stems. Organic nanowires with inorganic nanoparticles coating. A composite of three scanning electron microscope images taken at different focal lengths of a carbonized silicon nanowire array. A serendipitous pattern of high-performance organic semiconductor crystal thin films. Unexpected crystals of iron sulfides by Scanning Electron Microscopy. This is a Scanning Tunneling Microscopy image of Au induced nanowires on a Ge(001) substrate, recorded at temperature 77 K in ultra-high vacuum (UHV) conditions.

2013 MRS Fall Meeting

Solution cast poly-1,8-octanedithiol crystals. Scanning electron microscopy image of a 50 micrometer high self-assembled micro-flower made from barium carbonate and silica. A scanning electron microscopy (SEM) image of GaAs substrate cleavage plane after nanowire growth. The hill and cliff structures result from imperfect alignment with the cleavage plane orientation while cleaving the substrate. A piece of debris on a sample covered with MBE-grown InAs nanowires. Seen with the electron microscope. Growth of BiFeO3 in an alumina crucible (scanning electron microscopy image) Scanning electron microscopy of a cracked inverse opal scaffold used in microbattery electrodes. TEM image of cobalt-doped iron phosphide nano-urchins grown bysolution-phase synthesis and restored to their natural habitat bycomputational methods. A family portrait of magnetic droplets. The image is a composite photograph of ferrofluid droplets on a superhydrophobic surface at varying magnetic field strengths. The "eyes" are reflections from two lamps.

2012 MRS Spring Meeting

Scanning electron microscopy (SEM) image depicts a baby giraffe formed within a jungle of Ni-Al-C dendrites. Looking into the dark forest of GaAs/GaInP nanowires imaged by SEM. The nanowires were grown in two steps: first the GaAs stem using a Au particle as seed particle in MOVPE. A stunning visual pattern of high-performance organic semiconductor crystals obtained using cross-polarized optical microscopy. Spring is here! False color SEM image of carbon nanotube pillars synthesized by cappilography. Colorized SEM image showing arrays of baked cupcakes through self-assembly of colloidal “sprinkles” onto the surface of premade cupcakes. SEM image taken after a failed evaporation of Cu metal onto a patterned Si wafer. Technique: SEM image, the GeTe nanostructure was synthesised by CVD method.

2012 MRS Fall Meeting

Scanning electron micrograph of spherical carbon particles, prepared at high temperature and pressure, mimics the galaxy. Colorized SEM image of ZnO crystallites blooming on the surface of single crystalline hexage of gold. The gold plate is obtained through solution-based thermolysis. The ZnO is nucleated and grown through a 2-step solution synthesis. The collage shows two false color SEM images. The ZnS spacecraft (~20 um in length) predominantly consists of hexagonal platelets, which are obtained by thermal decomposition of a molecular source under solvothermal conditions. Screw dislocation network formed in a (0001) / [0001] twist grain boundary in an alumina bicrystal. The network consists of hexagonal units due to the three-fold symmetry about the c-axis, and the size of each unit is about 50nm. 2-D Ti3C2 layers were produced by etching Al from Ti3AlC2, a member of the ternary transition metal carbides called MAX Phases. Given its similarities with graphene, we labled it "MXene." Photograph depicting ferrofluid-coated tape grippers as they close underwater and await collection by a permanent magnet.

2011 MRS Spring Meeting

The "Nano Graveyard" is a thin film of tin (II) sulfide prepared by a solution method with post-annealing and was imaged using scanning electron microscopy at a low incidence angle. Nano Flower made of zinc oxide, Scanning electron microscope image of zinc oxide nanowire arrays with flower-like form. Water soluble salts have deliquescent points (i.e. a relative humidity above which they begin to dissolve in the moisture that is adsorbed on their surfaces). SEM image of hydrothermally grown ZnO nanostructure on the sintered Ag nanoparticles. I was supposed to grow ZnO nanowire, but I applied too much power which in turn caused a bubble. The SEM image is of titanium dioxide (anatase) film with surface texture. Colorized scanning electron microscopy (SEM) image of silver dendrites created through a fast reduction of silver nitrate (AgNO3) in the presence of citrate. The as-obtained silver flowers possess large surface area as well as high catalytic activity. This is an scanning electron micrograph of a copper oxide microflower which was electrochemically deposited on a titanium dioxide layer. The length of the central petal in the flower is ca. 12µm. This picture is created from the convergence of a high resolution a plan view SEM image of the zinc oxide "nanowall & nanowire structures" synthesized by metal-organic chemical vapor deposition. Color was added to the original image. An SEM image of MnO2 nanowires grown on top of a piece of Manganese by a CVD process. This is an Scanning Electron Microscopy (SEM) image of an anode used in lithium ion batteries. This particular sample consist of 95% pure semiconducting single-walled carbon nanotubes.

2011 MRS Fall Meeting

Made by capillary self assembly of carbon nanotubes Block copolymer lamellae self-assembled in thin films recreate the distinctive brush strokes of Post-Impressionist paintings. The uniformly-dispersed "autumn leaves" are anatase TiO2 nanorods self-assembled to form bundles of dendrites. The leaves are embedded on a substrate of congregated nanocubic structures in the form of tausonite SrTiO3 crystallites. False-color scanning electron microscopy (SEM) image depicts a “NanoGarden” made of CuO nano flowers and Cu(OH)2 nanowires. These four micropillars put their heads together for a quick meeting among a crowd of onlookers. The pillars are made of the silicone material, polydimethylsiloxane (PDMS), and each one is approximately 60 micrometers tall and 15 micrometers in diameter. Collection of scanning electron micrographs of tantalum trisulfide (TaS3) prepared by the vapor transport of sulfur onto tantalum substrates. The trees and grass were represented by the SEM image of carbon nanotubes (CNTs) after field emission (FE) experiments. The CNTs were synthesized by chemical vapor deposition method and were uniformly oriented towards a metal plate. Optical micrograph of a spin-coated lead zirconate titanate (PZT) thin-film on silicon showing the effects of interference fringes, dust particles, and stress cracking. A researcher enters the nano cave and discovers a hidden cobra chameleon lurking in the shadows. Is this a new version of H.G.Wells’ “Wars of the Nanoworlds”? This image is based on one single SEM image which was slightly colorized using Adobe Photoshop. When the layered ternary compound, Ti3AlC2, is placed in hydrofluoric acid, the Al layers are selectively etched away resulting in two dimensional (2-D) layers of Ti3C2 weakly bonded to each other. Image is a spherical nanoindentation tip at a magnification of 8000x taken in an SEM, edited in Photoshop. The picture shows a photograph of organic light-emitting diodes. By combining different emitting molecules every color can be obtained. The picture "It's Christmas Everywhere" shows ZnO nanorods grown on an AFM (Atomic Force Microscopy) cantilever and is obtained by SEM (Scanning Electron Microscopy) technique.

2010 MRS Spring Meeting

This picture is created from a high resolution SEM image of a zinc oxide "nanoflower" synthesized by a physical vapor deposition technique. Scanning electron microscope image of a copper oxide cluster, 3.5 microns in diameter, prepared by evaporation and condensation over an alumina substrate. The smiley nose and eye are present in the original SEM image, which has only been color-enhanced. SEM image of vertically aligned ZnO nanowire arrays with a standing human-like form. Color was added to the original image. A scanning electron microscope image of the 250 nm diameter polymer fibers capturing 2 um polymer spheres by evaporative self-assembly. The image brings mind to eggs of fish on marine plants in a sea. Colorized SEM image of the superparamagnetic poly methyl methacrylate (PMMA) microspheres with Fe2O3 nanocrystals self-assembly on the surface and inside. SEM image of microbeads lying outside a self-assembled 500 micron sized box.

2010 MRS Fall Meeting

Silk, produced by the silkworm Bombyx mori, has been viewed for millennia as a prestigious and valuable material. This protein has recently found application as a high technology material in biomedical micro- and nanotechnology. This picture is created from a high resolution SEM image of zinc oxide "nanoflowers" synthesized by a physical vapor deposition technique. Tin Ball on KOH-etched Si surface appears like the moon rising above Si pyramids. This image was obtained using a scanning electron microscope at 16,100x magnification and was colorized using Adobe Photoshop. Calcium carbonate crystals mineralized on a chitosan thin film. Image taken in a scanning electron microscope with the secondary electron detector at 6 kV. The sample was coated with Pt/Pd for 30 seconds. This picture was created from the convergence of a high-resolution cross-sectional and a plan view SEM image of a zinc oxide "nanowall structure" synthesized by a metal-organic chemical vapor deposition technique. Color was added to the original image. High-resolution SEM image of germanium/silicon core/shell heterostructure nanowires (diameter ~ 10 nm) synthesized by a two-step chemical vapor deposition method on a layered Si/SiO2 substrate. An SEM image of an SEM chamber, obtained by looking at an electron-reflecting charged sample. The parabolic mirror is used for the collection of cathodoluminescence emission. Foraging for Funding. This otherworldly landscape is a polarized microscopy photograph of a perylene derivative thin film. This technique allows the light to pass through crystalline areas of the imaged film, while amorphous regions remain dark. Iron Platelets on Carbon Nanotube Pyramids.

2009 MRS Spring Meeting

Multiple species of bare and alumina coated pollen particle images obtained via SEM Colorized and overlaid scanning electron microscope images of Spaghetti & Meatballs made out of Au and Si. Colorized SEM image of silicon nanopillar formation Nano-Santa by Adam Steele Nano-Santa with his bag of nano-tubes. This was discovered on the surface of one of our superhydrophobic nanocomposite coatings. It has been colored slightly by image processing for artistic effect. The is a POM micrograph of self-assembled DEH-PPV-b-PMMA rod-coil block copolymer with 66% volume fraction of PMMA block prepared at 180oC to form the birefringent smectic phase and then cooled down to room temperature.

2009 MRS Fall Meeting

SEM observation of a mechanical test performed on a SiC-SiC composite. From the mind of Vincent van Gogh to the surface of self-assembled arrays of carbon nanotubes. This image obtained via scanning electron microscopy, evokes the magnum opus of Vincent van Gogh, Starry Night. The imaged object is a single crystalline diamond grain that is anisotropically etched by hot spheres of molten nickel (red). Multiple scanning electron microscope images of boron nitride nanotubes (BNNTs) at different length scales. The BNNTs were synthesized by catalytic chemical vapor deposition (CCVD) at 1200°C. Polycrystalline Ni-Mn-Ga magnetic shape memory alloy with a twin boundary structure (imaged with a polarized optical microscope). SEM image of crystalline wurtzite zinc oxide (ZnO) nanostructure synthesized via vapor-liquid-solid (VLS) method.

2008 MRS Spring Meeting

Amorphous SiOx nanowire bundles have an uncanny ability to self-assemble into various shapes, including one that strikingly resembles a sunflower. This is a cross-polarized light optical microphotograph of an array of organic thin-film transistors (OTFT) fabricated with newly synthesized, highly crystalline 4T-TMS organic semiconductor deposited by newly developed solution-shearing method. Color-enhanced TEM micrograph showing twins and strain contrast in a post-compression [111] NiTi micropillar. The micropillar was produced via FIB milling and was compressed using a nanoindenter equipped with a flat punch. AFM image of a sputtered Au(001) single crystal. Color added to a ZnO nano-needle SEM image. The nano-needles looks like beautiful mountains in a Chinese painting. This image is of some contamination (probably monodisperse polystyrene spheres from a previous user) in the microscope which just happened to collect at the corner of a Ta2O5 particle.

2008 MRS Fall Meeting

This is an SEM image (color enhanced by Photoshop) of high aspect ratio 250nm thick epoxy bristles that have self assembled and trapped a 2.5 micron diameter PS sphere. The crystalline wurtzite indium nitride (InN) nanoflower was synthesized via molecular beam epitaxy (MBE) processes, using pure indium and a high efficient nitrogen source, hydrazoic acid (HN3). The scanning electron microscopic image (taken using a FESEM LEO 1530) shows the ZnO nanostructures on an indium oxide coated glass substrate deposited at 70oC by using a facile electrochemical deposition technique. Garden of Carbon NanoEden A microscale china-style landscape painting of mountains and rivers, formed by monodisperse silica colloids assembled on the glass. These pine tree lead sulfide nanowires obtain a complicated structure because only the trunk contains a screw dislocation that causes it to twist.

2007 MRS Spring Meeting

High resolution scanning electron micrograph (SEM) of gold nanopyramids supported by silicon pedestals. A Bouquet of Anthradithiophene SEM Image of Tin Oxide Nanowires A 500×500 µm photoluminescence image of “Ancient of Days” was created in porous silicon using focused helium beam writing and subsequent electrochemical etching in hydrofluoric acid. This picture is showing side-view of a silicon-nanowire held between and resting on two opposite nickel electrodes. This is an image of defects on a GaAs surface following hydride vapor phase epitaxy. The image was taken using a Nikon Optical Microscope with Nomarski contrast. This SEM image was taken from surface of a TiO2 pollen. The pollen was converted into titania chemistry by using shape-preserving gas-solid displacement reaction. The image is a photograph of a droplet of water sitting on a nanostructured gold surface prepared by templated electrodeposition.

2007 MRS Fall Meeting

Color-enhanced scanning electron micrograph of an overflowed electrodeposited magnetic nanowire array (CoFeB), where the template has been subsequently completely etched. Ni-Mn-Ga melt-extracted fibers with an approximate diameter of 100 µm showing a bamboo-type structure (imaged with a backscattered electron detector in an FEG-SEM). Self-assembled 200 micron size nickel dice, imaged using scanning electron microscopy in the lower secondary electron (LEI) mode. The dice were colorized using Adobe Photoshop. SEM image of CuInSe2 film with Cu2Se (plates) and InSe (needles) crystals on the surface. The picture shows a colored image of the layered steps formed inside closed pores of La0.8Ca0.2CoO3, which were revealed due to fracture of the material. Combined 3-D representation of two images taken by scanning tunneling microscopy.

2006 MRS Spring Meeting

Bryozoans by Simon Hall Toxic Garden Polypyrrole Conducting Polymer Film Calligraphy 4340 Fracture Anaglyph Prismatic Folds