TY - JOUR AU - Igor Levin AU - Albert Davydov AU - Babak Nikoobakht AU - Norman Sanford AU - Pavel Mogilevsky C2 - Applied Physics/ Letters DA - 2005-08-31 LA - en PB - Applied Physics/ Letters PY - 2005 TI - Growth Habits and Defects in ZnO Nanowires Grown on GaN/Sapphire Substrates ER -