Wen, Y.-C.Y.-C.WenChern, G.-W.G.-W.ChernLin, K.-H.K.-H.LinYeh, J.J.J.J.YehCHI-KUANG SUN2018-09-102018-09-102011http://www.scopus.com/inward/record.url?eid=2-s2.0-82655178596&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/364825Femtosecond optical excitation of coherent acoustic phonons in a piezoelectric p-n junctionjournal article10.1103/PhysRevB.84.205315