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Incandescent light bulbs are very inefficient in transforming energy into light. Since about 20% of the world’s total electricity consumption is used for lighting, a new and more efficient light source has to be developed. One solution is solid-state lighting, which employs light-emitting diodes (LEDs) made from semiconducting materials. The image shows the cathodoluminescence (CL) from an LED excited by the electron beam of an FEI Quanta 250. CL imaging helps to understand the properties of these LEDs and gives valuable insight into prevalent defects, such as the ring-shaped defect in the image, in order to improve the devices.
Courtesy of Dr. Jochen Bruckbauer , University of Strathclyde, Department of Physics
Taken by Quanta SEM microscope
Zinc Oxide crystals grown by Aqueous Chemical Bath method.
Courtesy of Mr. Witold Adamkiewicz , Institute of Physical Chemistry PAS
Taken by Nova NanoSEM microscope
A: Ladybug eggs (45x), (top view) B: The same eggs after hatching (45x), (top view) C: Ladybug eggs (90x), (side view) D: The same eggs after hatching (90x), (side view)
Courtesy of Riccardo Antonelli
Deprocessing 2x node zoom contact layer, Helios G4 PFIB
Taken by Helios G4 PFIB microscope
SiO2 pillars grown using IDEP3 GIS with the electron beam in parallel deposition mode. The growth mode allowed the pillars to look like pine trees.
Courtesy of Lynne Gignac
Taken by Helios NanoLab microscope
Ceramic particles imaged at low vacuum in Ultra-High Resolution mode.
Courtesy of Paul Gunning, Smith and Nephew
Courtesy of John Perry
Tartaric acid crystals growth
Courtesy of Mr. Bertrand Schmitt , Nestlé (Nestec SA)
Order: Juglandales Family: Juglandaceae (walnut family) Genus_species: Juglans nigra Glandular tricomes on lower leaf surface from a Walnut tree
Courtesy of Louisa Howard
Prostate carcinoma cells from cell culture.
Courtesy of Mrs. Nicole Ottawa , eye of science
The sample is the Ni SAPO crystal layer grown on alumina as a catalyst
Courtesy of Dr. Louwrens Tiedt , North-West University, Potchefstroom Campus, Potchefstroom
Human blood cells: Lymphocyte
Na-Ca-Silica structures in sedimentary rocks - Crystal Structures Vermicular 2012
Courtesy of Mariano Davoli
Taken by Quanta 3D microscope
Shot peening of Ti-45Al-10Nb in air leads to partial amorphisation of the outermost layer and to the formation of a contaminant nanocrystalline (T, Al)N phase, presumably Ti2N. The figure shows dislocation recovery within a nano-crystalline grain embedded into the amorphous phase of the shot peened surface layer, as observed in situ. Three dislocations are marked by symbols. Stage (i): The isolated dislocation on the left hand side is relatively immobile. The two other dislocations are in a dipole configuration and propagate towards each other and are about to annihilate in stage (ii). Stage (iii) shows the situation after annihilation of the dipole dislocations; this is indicated by the continuous trace of the lattice planes. Observations made at room temperature with an acceleration voltage of 300 kV. It should be noted that the micrographs were sligthly compressed along the vertical direction in order to make the dislocations readily visible. The figure demonstrates the high electrical, thermal and mechanical stability of the instrument.
Courtesy of Fritz Appel
Taken by Tecnai microscope
Gold flakes and nanoparticles
Courtesy of wadah mahmoud
Taken by Inspect microscope
Mammacarcinoma Cell attacked by Natural Killer Cell
Courtesy of Mr. Oliver Meckes , eye of science
ZnO micro-flowers obtained by hydrothermal synthesis using microwave heating.
Courtesy of Mr. FRANCISCO RANGEL , MCTI/INT
Dendrite on Prickly Gold Sample
Courtesy of Ashley Anderson
Automotive light bulb filament.
Courtesy of FRANCISCO RANGEL
A small colony of bacteria was found proliferating on the surface of a newly developed bio-polymer. While the presence of bacteria was unintentional, the bacterial growth provides evidence for the bio-compatibility properties of the polymer.
Courtesy of Dr. Mark McClendon , Northwestern University
copper crystals on copper surface
Cross-Section of a 3 Die Stack
Courtesy of FEI
Taken by Vion Plasma microscope
Reconstitution of a membrane protein into liposomes
Courtesy of Jennifer Wingard
Image of black pepper flake; courtesy of student Sylvana Sawires.
Courtesy of Alyssa Calabro
The picture shows the terraces formation in the surface of the semiconductor Cu(In,Ga)Se2 used in the manufacture of solar cells. Co-authors: Isidoro Ignacio Poveda, Enrique Rodríguez Cañas, Esperanza Salvador, from SIDI UAM.
Courtesy of Eberhardt Josue Friedrich Kernahan