The capability to detect the polarization state of light is crucial in many day-life applications and scientific disciplines. Novel anisotropic 2D materials such as TiS3 combine polarization sensitivity, given by the in-plane optical anisotropy, with excellent electrical properties. Here, the fabrication of a monolithic polarization-sensitive broadband photodetector based on a mixed-dimensionality TiS3/Si p–n junction is demonstrated. The fabricated devices show broadband responsivity up to 1050 nm, a strong sensitivity to linearly polarized illumination with difference between the two orthogonal polarization states up to 350%, and a good detectivity and fast response time. The discussed devices can be used as building blocks to fabricate more complex polarization-sensitive systems such as polarimeters.

Polarization-Sensitive and Broadband Photodetection Based on a Mixed-Dimensionality TiS3/Si p–n Junction / Niu, Y.; Frisenda, R.; Flores, E.; Ares, J. R.; Jiao, W.; Perez de Lara, D.; Sanchez, C.; Wang, R.; Ferrer, I. J.; Castellanos-Gomez, A.. - In: ADVANCED OPTICAL MATERIALS. - ISSN 2195-1071. - 6:19(2018). [10.1002/adom.201800351]

Polarization-Sensitive and Broadband Photodetection Based on a Mixed-Dimensionality TiS3/Si p–n Junction

Frisenda R.
;
Wang R.;
2018

Abstract

The capability to detect the polarization state of light is crucial in many day-life applications and scientific disciplines. Novel anisotropic 2D materials such as TiS3 combine polarization sensitivity, given by the in-plane optical anisotropy, with excellent electrical properties. Here, the fabrication of a monolithic polarization-sensitive broadband photodetector based on a mixed-dimensionality TiS3/Si p–n junction is demonstrated. The fabricated devices show broadband responsivity up to 1050 nm, a strong sensitivity to linearly polarized illumination with difference between the two orthogonal polarization states up to 350%, and a good detectivity and fast response time. The discussed devices can be used as building blocks to fabricate more complex polarization-sensitive systems such as polarimeters.
2018
optoelectronic devices; photodetectors; polarimeters; p–n junctions; titanium trisulfide; trichalcogenides
01 Pubblicazione su rivista::01a Articolo in rivista
Polarization-Sensitive and Broadband Photodetection Based on a Mixed-Dimensionality TiS3/Si p–n Junction / Niu, Y.; Frisenda, R.; Flores, E.; Ares, J. R.; Jiao, W.; Perez de Lara, D.; Sanchez, C.; Wang, R.; Ferrer, I. J.; Castellanos-Gomez, A.. - In: ADVANCED OPTICAL MATERIALS. - ISSN 2195-1071. - 6:19(2018). [10.1002/adom.201800351]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1624239
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