Fabrication of Si nanopillars via Ni-nanoclusters and reactive ion etching - Gonzales, Rhona Olivia M.; Mailig, Rengie Mark D.; delos Santos, Ramon M.; Porquez, Jeremy G.; Presto, Jorge Michael M.; Salvador, Arnel A.; Somintac, Armando S. (Proceedings of the Samahang Pisika ng Pilipinas, 2008)