Vapour growth of Cd(Zn)Te columnar nanopixels into porous alumina

4 páginas, 4 figuras.-- PACS: 81.05.Dz; 81.07.Bc; 81.15.Kk; 68.55.Jk.-- New Developments in Radiation Detectors - Proceedings of the 10th European Symposium on Semiconductor Detectors, 10th European Symposium on Semiconductor Detectors.The vapour phase growth (VPG) of CdTe and Cd1−xZnxTe was performed in order to investigate the formation of Cd(Zn)Te columnar nanostructures, which could serve as a basis for micropixels usable for further development of X- and gamma-ray high-resolution imaging devices. The possibility to form the “Cd(Zn)Te-in-porous alumina” nanostructures by VPG has been demonstrated. The Cd(Zn)Te crystals integrated into nanoporous alumina have shown to have photoluminescence properties compatible with those of the bulk crystals and planar epitaxial layers. Further investigations are going on to improve the structural quality of Cd(Zn)Te nanocrystals.This work has been partly supported by the European Commission (FP6 program, PHOLOGIC project, Contract No. 017158) and the Spanish Ministry of Science and Technology via the program ‘Ramon y Cajal’ and project MAT2003-09873-C02.Peer reviewe