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1. (WO2018007603) RADIATION DETECTOR AND ASSOCIATED IMAGER

Pub. No.:    WO/2018/007603    International Application No.:    PCT/EP2017/067129
Publication Date: Fri Jan 12 00:59:59 CET 2018 International Filing Date: Sat Jul 08 01:59:59 CEST 2017
IPC: H01L 31/109
Applicants: THALES
COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
Inventors: EVIRGEN, Axel
REVERCHON, Jean-Luc
Title: RADIATION DETECTOR AND ASSOCIATED IMAGER
Abstract:
The invention relates to a radiation detector (15) comprising a stack (20) of layers, successively comprising: - an absorbent layer (C1) configured to absorb the radiation and produced from a semiconductor material, - a screen charges layer (C2) produced from a semiconductor material having a second bandgap value, - a transition layer (C3) produced from a semiconductor material having a third bandgap value, and - a first window layer (C4) produced from a semiconductor material having a fourth bandgap value, the absorbent layer (C1) and the screen charges layer (C2) having doping of a first type, the first window layer (C4) having doping of a second type, a volume density of dopants of the window layer (C4) being greater than a volume density of dopants of the transition layer (C3).