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Direct linkHunter, David N.; Pickering, Shawn L.; Jia, Dongdong – European Journal of Physics, 2007
An undergraduate thin-film nanotechnology laboratory was designed. Nanocapacitors were fabricated on silicon substrates by sputter deposition. A mask was designed to form the shape of the capacitor and its electrodes. Thin metal layers of Au with a 80 nm thickness were deposited and used as two infinitely large parallel plates for a capacitor.…
Descriptors: Physics, Molecular Structure, Technology, Laboratories
Jia, Dongdong; Ma, Yiwei; Hunter, D. N. – European Journal of Physics, 2007
An undergraduate laboratory was designed for undergraduate students to make long persistent light emitting diode (LED) indicators using phosphors. Blue LEDs, which emit at 465 nm, were characterized and used as an excitation source. Long persistent phosphors, SrAl[subscript 2]O[subscript 4]:Eu[superscript 2+],Dy[superscript 3+] (green) and…
Descriptors: Undergraduate Students, Chemistry, College Science, Light
