theboaf

[theboaf]

Uranium doped silicon dioxide (”uranium glass”) under UV irradiation. This thing is hot! Hoping the plastic bag around it will stop most of the alpha emissions!

#chemistry #uraniumglass #fluorescence

[theboaf]

TEM image of a single lead sulfide nanocrystal. The lattice fringes are visible.

#chemistry #materials science #electron microscope #nanocrystals #quantum dots

[theboaf]

TEM image of a single lead sulfide nanocrystal. The lattice fringes are visible.

#chemistry #materials science #electron microscope #nanocrystals #quantum dots

[theboaf]

TEM image of a single lead sulfide nanocrystal. The lattice fringes are visible.

#chemistry #materials science #electron microscope #nanocrystals #quantum dots

[theboaf]

STEM-HAADF image of lead sulfide quantum dots forming a ring. Not the best quality image (and a lot of organic contamination), but I thought it looked cool.

#chemistry #materials science #electron microscope

[theboaf]

Tin doped indium oxide nanocrystals. The blue color arises from a surface plasmon resonance that has an absorption band in the near IR.

#chemistry #materials science #plasmon #colorful

[theboaf]

Electron microscope image of a crystal lattice. The representation of the atoms in the lattice is visible.

#chemistry #materials science #microscope #electron microscope

[theboaf]

With an election coming up I was thinking the periodic table is kind of like various political affiliations with electrons as the currency of chemistry.

Group 3 and 4: Liberals Noble gases, Group 11 and 12: Conservatives Vanadium and group 7: Swing voters/independents Metalloids: Undecided Carbon: Green party Fluorine and Group 1: Anarchists Arsenic, mercury, cadmium, thallium, or lead: Any political party you dislike Lanthanides, Actinides, and other weird elements: Conspiracy theorists

#periodic table #chemistry

[theboaf]

Flowers on a fishhook cactus.

#cactus #flowers

[theboaf]

Flowers on a fishhook cactus.

#cactus #flowers

[theboaf]

Flowers on a fishhook cactus.

#cactus #flowers

[theboaf]

A visualization of the surface potential of a ternary metal oxide material fabricated by atomic layer deposition. The image was taken by a collaborator with a Kelvin probe force microscope.

#chemistry #materials science #physics

[theboaf]

A very flat and conformal ternary metal oxide film (in the bracket) fabricated by atomic layer deposition that is stable to annealing at high temperatures. RMS values of the surface by AFM were 0.2 nanometers.

#chemistry #materials science #microscope

[theboaf]

A magnified image of two nanocrystals fusing together. Can see the representation of the atoms in the nanocrystal lattice.

#chemistry #materials science #electron microscope #microscope #nanocrystals

[theboaf]

Some fused metal oxide nanocrystals taken with transmission electron microscope.

#chemistry #materials science #electron microscope #microscope #nanocrystals

[theboaf]

Some fused metal oxide nanocrystals. A lot of lattice is visible.

#chemistry #materials science #electron microscope #microscope

[theboaf]

An EDS image map of a core-double shell nanocrystal composite fabricated using atomic layer deposition. The image was collected in STEM-HAADF mode by an electron microscope. The image was collected by a coauthor/collaborator. 

#chemistry #materials science #electron microscope #microscope