Some significant progresses have been attained in science and technology of
nanocrystalline porous silicon. Especially important accomplishments are c
ontrol of interfacial and structural properties, formation of nanocomposite
s, observation of band dispersions, development of efficient electrolumines
cent devices, and findings of novel electronic functions as a quantum-confi
ned system. (C) 1999 Elsevier Science Ltd. All rights reserved.