RT Journal Article T1 Origin of yellow luminescence from reduced pressure grown bulk GaN crystals A1 Herrera Zaldiva, M. A1 Fernández Sánchez, Paloma A1 Piqueras De Noriega, Francisco Javier A1 Sukhoveyev, W. A1 Ivantsov, V. A. A1 Shreter, Y. G. AB Cathodoluminescence (CL) in the scanning electron microscope has been applied to study the luminescence emission of GaN single crystals grown by LPE methods. CL spectra show the presence of near band edge and of yellow emissions. The latter has been found to be mainly related to rows of hillocks formed at the growth steps. The origin of the yellow luminescence is discussed PACS: 78.60Hk; 71.55Eq. PB Springer SN 0947-8396 YR 2000 FD 2000-07 LK https://hdl.handle.net/20.500.14352/59134 UL https://hdl.handle.net/20.500.14352/59134 LA eng NO © Springer-Verlag 2000.This work has been supported by DGES (Project PB96-0639). The Russian Fund for Basic Research (Project 98-01-01084) is acknowledged. NO DGES NO The Russian Fund for Basic Research DS Docta Complutense RD 11 abr 2025