RT Journal Article
T1 Room-temperature operation of a titanium supersaturated silicon-based infrared photodetector
A1 Martil De La Plaza, Ignacio
A1 García Hemme, Eric
A1 García Hernansanz, Rodrigo
A1 González Díaz, Germán
A1 Olea Ariza, Javier
A1 Pastor Pastor, David
A1 Prado Millán, Álvaro Del
AB We report room-temperature operation of 1 x 1 cm(2) infrared photoconductive photodetectors based on silicon supersaturated with titanium. We have fabricated these Si-based infrared photodetectors devices by means of ion implantation followed by a pulsed laser melting process. A high sub-band gap responsivity of 34 mVW(-1) has been obtained operating at the useful telecommunication applications wavelength of 1.55 mu m (0.8 eV). The sub-band gap responsivity shows a cut-off frequency as high as 1.9 kHz. These Si-based devices exhibit a non-previous reported specific detectivity of 1.7 x 10(4) cm Hz(1/2) W-1 at 660Hz, under a 1.55 mu m wavelength light. This work shows the potential of Ti supersaturated Si as a fully CMOS-compatible material for the infrared photodetection technology.
PB American Institute of Physics
SN 0003-6951
YR 2014
FD 2014-05-26
LK https://hdl.handle.net/20.500.14352/33683
UL https://hdl.handle.net/20.500.14352/33683
LA eng
NO © AIP Publishing LLC. The authors would like to acknowledge the CAI de Técnicas Físicas of the Universidad Complutense de Madrid for the ion implantations and metallic evaporations. This work was partially supported by the Project NUMANCIA II (Grant No. S-2009/ENE/1477) funded by the Comunidad de Madrid. Research by E. Garca-Hemme was also supported by a PICATA predoctoral fellowship of the Moncloa Campus of International Excellence (UCM-UPM). J. Olea and D. Pastor thank Professor A. Mart_ı and Professor A. Luque for useful discussions and guidance and acknowledge financial support from the MICINN within the program Juan de la Cierva (JCI-2011-10402 and JCI-2011-11471), under which this research was undertaken.
NO Comunidad de Madrid
NO Moncloa Campus of International Excellence (UCM-UPM)
NO MICINN
DS Docta Complutense
RD 6 abr 2025