Ultraviolet Photoelectron Spectroscopy (UPS): UPS utilizes ultraviolet photons (typically from a He discharge lamp) to investigate the valence band structure and electronic properties of materials.

When high-energy light with a very short frequency in the extreme ultraviolet or X-ray ... This is the basic principle of photoelectron spectroscopy. The electron that is emitted, known as the ...

When high-energy ultraviolet or X-ray light interacts ... This principle is the basis of photoelectron spectroscopy, a technique pioneered by Nobel laureate Kai Siegbahn in the 1980s.

Ultrafast electron dynamics in chemical reaction is investi-gated by time-resolved photoelectron imaging spectroscopy using a novel VUV and deep UV fi lamentation light source, Experimental results ...

Through density functional theory (DFT) calculations, the academics found that ortho-carborane and perovskite could stably combine, and that further ultraviolet photoelectron spectroscopy (UPS ...

XPS relies on the photoelectric effect, where irradiating a material with X-rays causes the emission of core electrons. The kinetic energy of these emitted electrons is measured, which can be directly ...

Using ultraviolet photoelectron spectroscopy (UPS), the team also found that the perovskite surface can pin to the negative polaron transport state of PCBM ETL, thus further promoting electron ...

The PHI 5800 X-ray photoelectron spectrometer (XPS) is equipped with a dual source anode (Al and Mg), a hemispherical analyzer for XPS and Auger electron spectroscopy (AES) analysis, including ...