%0 Journal Article
%T New method for the production of thin and stable, segmented n plus contacts in HPGe detectors
%A Bertoldo, S.
%A Maggioni, G.
%A Raniero, W.
%A Carraro, C.
%A Riccetto, S.
%A Sgarbossa, F.
%A Scarpa, D.
%A Andrighetto, A.
%A Mazzolari, A.
%A Gadea, A.
%A Napoli, D. R.
%A Napolitani, E.
%A De Salvador, D.
%J European Physical Journal A
%D 2021
%V 57
%N 6
%I Springer
%@ 1434-6001
%G English
%F Bertoldo_etal2021
%O WOS:000781800800001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5193), last updated on Mon, 25 Apr 2022 09:40:04 +0000
%X The realization of pulsed-laser diffused, thin n+ contacts on high purity germanium (HPGe) and their successful segmentation is described. The contacts have been obtained by a laser-induced diffusion of Sb atoms, deposited by sputtering on Ge surface, and then segmented by means of a photolithographic technique. Three small prototypes of gamma ray detectors have been implemented, using the same n+ contact (laser diffused Sb) but with three different geometries and a B implanted p+ contact. Electrical and detection properties of the prototypes have been characterized, showing low leakage currents and good spectroscopy data with different gamma-ray sources. The stability of the detector performance has also been tested subjecting one of the prototypes to a typical annealing treatment.
%R 10.1140/epja/s10050-021-00487-8
%U https://doi.org/10.1140/epja/s10050-021-00487-8
%P 177 - 10pp