Photoelectron multipliers based on avalanche pn − i − pn structures K.A. Lukin, P.P. Maksymov and H.A. Cerdeira Eur. Phys. J. Special Topics, 223 13 (2014) 2989-2999 Published online: 10 December 2014 DOI: 10.1140/epjst/e2014-02312-x