A gallium phosphide (GaP) photovoltaic junction is grown by molecular beam epitaxy (MBE) on a GaP substrate. An anti-reflection coating of polymethyl methacrylate (PMMA) is applied and the cell is measured under concentrations of 1 and 10.7 in an outdoor setting. Efficiencies up to 2.6% and open circuit voltages up to 1.57 V are reported. & 2011 Elsevier B.V. All rights reserved.

Microspheres of polymethyl-methacrylate (PMMA) are exciting new soft-tissue fillers that are becoming increasing popular for facial rejuvenation. Some reports of side effects of this procedure are basically in respect to dermal reaction, with late-onset granulomatous lesion with giant cells and vacuoles. We report blindness and total ophthalmoplegia after PMMA injection into glabellar area in a...

In our experiments, we use different photoresists for proton beam writing and mold fabrication. We have fabricated Ni mold with structures down to 500 nm. We first use a fine focused proton beam to expose different photoresists, Polymethyl Methacrylate (PMMA), AR-P 3250 and ma-N 2410. After development and nickel sulfamate electroplating, the structures were faithfully transferred from the phot...