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|Title: ||New developments on diamond photodetector for VUV solar observations|
|Authors: ||BenMoussa, A.|
De Jaeger, J.C.
|Issue Date: ||2008|
|Publisher: ||IOP PUBLISHING LTD|
|Citation: ||SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 23(3). p. 035026-...|
|Abstract: ||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 mu m in width with spacing between the contacts of 5 mu m 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.|
|Notes: ||[BenMoussa, A.; Hochedez, J. F.] Observ Royal Belgium, STCE, B-1180 Brussels, Belgium. [Soltani, A.; Barkad, H. A.; De Jaeger, J. C.] IEMN, F-59652 Villeneuve Dascq, France. [Haenen, K.; Mortet, V.] Inst Mat Res, B-3590 Diepenbeek, Belgium. [Haenen, K.] IMEC VZW, Div IMOMEC, B-3590 Diepenbeek, Belgium. [Kroth, U.; Richter, M.] PTB, D-10587 Berlin, Germany. [Bolsee, D.; Hermans, C.] BISA, B-1180 Brussels, Belgium.|
|ISI #: ||000254385900026|
|Type: ||Journal Contribution|
|Validation: ||ecoom, 2010|
|Appears in Collections: ||Research publications|
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