Extremely high negative electron affinity of diamond via magnesium adsorption

High-Voltage Vacuum Switch with a Diamond p--i--n Diode Using Negative Electron Affinity

Electron-trapping polycrystalline materials with negative electron affinity.

The trapping of electrons by grain boundaries in semiconducting and insulating materials is important for a wide range of physical problems, for example, relating to: electroceramic materials with applications as sensors, varistors and fuel cells, reliability issues for solar cell and semiconductor technologies and electromagnetic seismic phenomena in the Earth's crust. Surprisingly, considerin...

Patterned negative electron affinity photocathodes for maskless electron beam lithography

This work focuses on two issues crucial to achieving high throughput with a negative electron affinity semiconductor photocathode source. Monte Carlo simulations indicate that for a 50 kV system, as much as 8 mA of current may be delivered to the wafer to achieve a raw throughput of 20 8 in. wafers per hour with 0.1 mm minimum feature size ~assuming a resist sensitivity of 10 mC/cm!. In order t...

High-temperature electron emission from diamond films

This work examines electron field-emission characteristics of polycrystalline diamond films at elevated temperatures. Diamond is an excellent material as a field emitter because of its exceptional mechanical hardness and chemical inertness. The motivation behind this study involves the use of field emitters in applications where high temperatures exist. Nitrogen-doped polycrystalline diamond fi...

Large work function reduction by adsorption of a molecule with a negative electron affinity: Pyridine on ZnO