Perera, A.G.U.Matsik, S.G.Jayaweera, P.V.V.Tennakone, K.Liu, H.C.Buchanan, M.Winckel, G.V.Stintz, A.Krishna, S.2015-12-302015-12-302006Applied Physics Letters, 89:p.131118https://dl-ifs.nsf.gov.lk/handle/1/1021Article