Title :

New developments on diamond photodetector for VUV solar observations

Author(s) :

Benmoussa, Ali [Auteur]
Royal Observatory of Belgium = Observatoire Royal de Belgique [ROB]
Soltani, Ali [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Haenen, Ken [Auteur]
Institute for Materials Research [Diepenbeek]
Kroth, Udo [Auteur]
Physikalisch-Technische Bundesanstalt [Berlin] [PTB]
Mortet, Vincent [Auteur]
Institute for Materials Research [Diepenbeek]
Barkad, Hassan Ali [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Bolsée, David [Auteur]
Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique [BIRA-IASB]
Hermans, Christian [Auteur]
Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique [BIRA-IASB]
Richter, M. [Auteur]
Physikalisch-Technische Bundesanstalt [Berlin] [PTB]
De Jaeger, Jean-Claude [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Hochedez, Jean-François [Auteur]
Royal Observatory of Belgium = Observatoire Royal de Belgique [ROB]

Journal title :

Semiconductor Science and Technology

Pages :

035026

Publisher :

IOP Publishing

Publication date :

2008

ISSN :

0268-1242

HAL domain(s) :

Planète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]

English abstract : [en]

A new large-size metal–semiconductor–metal photoconductor device of 4.6 mm in diameter based on diamond material has been reprocessed and characterized in the vacuum-ultraviolet (VUV) wavelength range. The metal finger ...
Show more >A new large-size metal–semiconductor–metal photoconductor device of 4.6 mm in diameter based on diamond material has been reprocessed and characterized in the vacuum-ultraviolet (VUV) wavelength range. The metal finger contacts have been processed to 2 µm in width with spacing between the contacts of 5 µm for a bias voltage of 5 V. The responsivity, stability, linearity and homogeneity have been tested. Solutions and progresses on diamond processing are identified and are reported. In the VUV wavelength range of interest, the diamond photodetector is sensitive with a maximum response of 48 mA W⁻¹ at 210 nm with a corresponding external quantum efficiency of 42%, homogenous and stable under short irradiation. It indicates a 200–400 nm rejection ratio of more than four orders of magnitude and demonstrates the advantages of diamond-based detectors in terms of high rejection ratio and high output signal for VUV solar observation missions.Show less >

Language :

Anglais

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL