Powered by TCPDF (www.tcpdf.org) This material is protected by copyright and other intellectual property rights, and duplication or sale of all or part of any of the repository collections is not permitted, except that material may be duplicated by you for your research use or educational purposes in electronic or print form. You must obtain permission for any other use. Electronic or print copies may not be offered, whether for sale or otherwise to anyone who is not an authorised user. Johansen, K.M.; Zubiaga, A.; Makkonen, I.; Tuomisto, F.; Neuvonen, P.T.; Knutsen, K.E.; Monakhov, E.V.; Kuznetsov, A.Y.; Svensson, B.G. Identification of substitutional Li in n-type ZnO and its role as an acceptor